ISSN 2687-105X
Центр международных и сравнительно-правовых исследований
International and Comparative Law Research Center
ЛЕКЦИИ ЛЕТНЕЙ ШКОЛЫ
ПО МЕЖДУНАРОДНОМУ ПУБЛИЧНОМУ ПРАВУ
Контрмеры и санкции
Алина Мирон
COURSES OF THE SUMMER SCHOOL
ON PUBLIC INTERNATIONAL LAW
Countermeasures and Sanctions
Alina Miron
ТОМ X / VOL. X
Москва
2022
УДК
ББК
Л43
341.1/8
67.91
Л43
Лекции Летней Школы по международному публичному праву =
Courses of the Summer School on Public International Law. – Т. X.
Контрмеры и санкции = Vol. X. Countermeasures and Sanctions / Алина
Мирон = Alina Miron. — М.: Центр международных и сравнительноправовых исследований, 2022. — 80 с.
Настоящее издание содержит материалы лекций Алины Мирон
по теме «Контрмеры и санкции», прочитанных в рамках Летней Школы
по международному публичному праву 2019 года.
The present publication contains materials of lectures by Alina Miron
on the topic “Countermeasures and Sanctions”, delivered by her within the
frames of the 2019 Summer School on Public International Law.
УДК 341.1/8
ББК 67.91
Все права защищены. Никакая часть данной книги не может быть воспроизведена
в какой бы то ни было форме без письменного разрешения владельцев авторских
прав.
© Мирон Алина, 2021
© Центр международных
и сравнительно-правовых
исследований, 2021
Летняя Школа по международному публичному праву 2019 года
Summer School on Public International Law of 2019
Дорогие друзья!
Центр
международных
и
сравнительно-правовых
исследований продолжает публикацию лекций, прочитанных в
рамках Летней Школы по международному публичному праву.
Летняя Школа — проект Центра, призванный дать
возможность тем, кто изучает международное право,
занимается или планирует заниматься им, получить
дополнительные знания о предмете и стимулировать
самостоятельную работу слушателей. Занятия в Летней Школе
состоят из лекций и семинаров общего курса и объединённых
рамочной темой специальных курсов, которые проводятся
ведущими экспертами по международному праву, а также
индивидуальной и коллективной работы слушателей.
В 2019 году состоялась вторая Летняя Школа.
Специальные курсы были посвящены теме «Ответственность
в международном праве». Их прочитали Джеймс Катека
(«Ответственность государств»), Мигель де Серпа Суареш
(«Ответственность международных организаций»), Ивана
Хрдличкова («Международная уголовная ответственность
индивида»), Джон Дугард («Дипломатическая защита»), Алина
Мирон («Контрмеры и санкции»). Общий курс международного
публичного права прочёл Туллио Тревес.
Центр международных и сравнительно-правовых исследований выражает благодарность членам Консультативного cовета
Летней Школы: Р. А. Колодкину, С. М. Пунжину, Л. А. Скотникову,
Б. Р. Тузмухамедову — и всем, кто внёс вклад в реализацию этой
идеи, в том числе АО «Газпромбанк» за финансовую поддержку
проекта.
Dear friends,
The International and Comparative Law Research Center
continues publication of lectures delivered within the Summer
School on Public International Law.
The Summer School is a project of the Center aimed at
providing those learning, working, or aspiring to work in the
sphere of international law, with an opportunity to obtain
advanced knowledge of the subject and encouraging participants
to engage in independent research. The Summer School’s
curriculum is comprised of lectures and seminars of the general
and special courses under one umbrella theme delivered by leading
international law experts, as well as of independent and collective
studying.
The second Summer School was held in 2019. The Special
Courses were devoted to the topic “Responsibility in International
Law”. The courses were delivered by James Kateka (“Responsibility
of States”), Miguel de Serpa Soares (“Responsibility of
International Organizations”), Ivana Hrdličková (“Individual
Criminal Responsibility in International Law”), John Dugard
(“Diplomatic Protection”), and Alina Miron (“Countermeasures
and Sanctions”). The General Course on Public International Law
was delivered by Tullio Treves.
The International and Comparative Law Research Center
wishes to express its appreciation to the members of the Advisory
Board — Roman Kolodkin, Sergey Punzhin, Leonid Skotnikov,
and Bakhtiyar Tuzmukhamedov — as well as others who helped
implement the project, including Gazprombank (JSC) for their
financial support.
Алина Мирон
Алина Мирон является профессором юридического
факультета Университета Анже и имеет докторскую степень
по международному публичному праву. Она также имеет
опыт представления интересов различных государств в
Международном Суде, Международном трибунале по морскому
праву (МТМП), Суде Европейского союза, а также в арбитражных
разбирательствах. Профессор Мирон состоит в Европейском
обществе международного права, Ассоциации международного
права, Французском обществе по международному праву.
Она является автором нескольких книг и многочисленных
публикаций. В 2019 году она также была лектором Программы
Фонда «Ниппон» по наращиванию потенциала и обучению при
МТМП и Региональной программы обучения ООН в Африке.
Alina Miron
Alina Miron is a Professor at the University of Angers. She has
a doctorate degree in public international law. She has also acted as
counsel and advocate for different States before the International
Court of Justice, International Tribunal for the Law of the Sea
(ITLOS), European Court of Justice and Arbitral Tribunals. Professor
Miron is a Member of the European Society of International Law,
International Law Association, and of La Société française pour
le droit international. She is the author of several books and
numerous publications. Professor Miron also was a guest professor
at the ITLOS-Nippon Foundation Capacity-Building and Training
Programme and the United Nations Regional Training Programme
in Africa.
TABLE OF CONTENTS
CHAPTER 1:
Introduction. Rationale and Conceptual Clarifications ......... 10
Section 1. Enforcement in the International Legal
System: Taming Self-Help? ..................................................... 10
Section 2. Conceptual and Terminological Evolutions ............ 14
Section 3. Definition of Countermeasures ............................... 18
Section 4. Countermeasures and Coterminous
Contemporary Concepts ......................................................... 20
CHAPTER 2:
The Regime of Counter-Measures: International
Regulation of Their Conditions and Limits ............................. 26
Section 1. Identification and Establishment of a Prior
Unlawful Act ............................................................................ 27
Section 2. The Target of Countermeasures .............................. 40
Section 3. The Object of Countermeasures ............................. 43
Section 4. Conditions Ratione Temporis ................................. 51
Section 5. Proportionality ....................................................... 52
Section 6. Procedural Requirements ........................................ 53
CHAPTER 3:
Countermeasures in the General Interest:
Where Do We Stand? .................................................................. 55
Section 1. Distinction between Invocation of
Responsibility and Countermeasures Based on the
Concept of Injured State .......................................................... 55
Section 2. Articulation with other Consequences of
Breaches of Jus Cogens (Peremptory Norms) .......................... 61
CHAPTER 4:
Countermeasures and Sanctions .............................................. 67
Section 1. Terminological and Conceptual Conflations ........... 67
Section 2. An Indefinable Concept, an Indeterminate Regime ... 68
Section 3. The Lawfulness of Unilateral Coercive
Measures: a Grey Zone ............................................................ 72
Section 4. Conclusion .............................................................. 79
Alina Miron
CHAPTER 1:
Introduction. Rationale and Conceptual Clarifications
Section 1. Enforcement in the International Legal System:
Taming Self-Help?
Countermeasures and sanctions are forms of unilateral
enforcement against violations of international law. In this respect,
the international legal system is notoriously primitive, in the
sense that the victims of violations are also the main vindicators
of their infringed rights. As Professor Vera Gowlland-Debbas wrote,
“reactions to violations (…) have traditionally been unilateral, i.e.,
have taken the form of private justice. States enforced their own
rights and, in invoking responsibility, freely determined the legal
consequences they ascribed to other states’ infringement of their
rights, having recourse to coercive measures if necessary. In short,
unpredictable decentralized reactions to violations of international
law were and still are, to a large extent, the rule in international
society.”1
The Charter of the United Nations deprived States of the
possibility to resort unilaterally to war, but not of the one to adopt
peaceful measures of self-help. The Security Council, despite its
exorbitant competences in the field of the use of force, was not
conceived as an executive power. It is not a guardian of international
legal order in general, but a guardian of international peace and
security. And as Hans Kelsen had underlined in the early times of
the Charter, the purpose of enforcement action under Chapter VII
was “not to maintain or restore the law, but to maintain, or restore
V. Gowlland-Debbas, “Security Council Change: The pressure of emerging
international public policy”, International Journal, Vol. 65, No. 1, UN sanctions
(Winter 2009-10) 119.
1
10
Countermeasures and Sanctions
peace, which is not necessarily identical with the law.”2 This
remains largely true nowadays.
Decentralization in the implementation of State responsibility
and the correlative absence of judicial and enforcement bodies,
endowed with competence to impose sanctions on a violator, are
among the most common complaints about international law.3
But they are also quintessential characteristics of the present-day
structure of the international legal system, which has outlived
the establishment of a system of collective security. This classical
structure can be described as horizontal (all States enjoy sovereign
equality), decentralized (States have no superior authority above
them) and mainly self-appreciatory (States are those to define in
the first place the strength of their legal position and it is only
incidentally that an international judicial organ would assess the
merits of their unilateral positions).
These systemic characteristics stay in the background, even in
the rather exceptional cases when centralized judicial institutions
enjoy unfettered competence to adjudge upon violations of treaty
obligations. Thus a WTO Panel noted that:
“[T]he notion of enforcement contains a concept of action
within a hierarchical structure that is associated with the
relation between the state and its subjects, and which is almost
entirely absent from international law (action under Chapter
VII of the United Nations Charter is arguably an exception,
but it has no relevance in the present dispute). The possibility
for states to take countermeasures, that is to try by their own
actions to persuade other states to respect their obligations, is
2
H. Kelsen, The Law of the United Nations (London: London Institute of World Affairs,
1950) 294; and H. Kelsen, “Collective security and collective self-defense under the
Charter of the United Nations”, American Journal of International Law 42, no. 4 (1948)
788.
3
T. M. Franck, Countermeasures and self-Help (CUP 2009) 111.
11
Alina Miron
itself an acknowledgement of the absence of any international
body with enforcement powers”.4
If the structure of the international system has not
undergone any Copernican revolution since 1945, several
important evolutions or at least tendencies must nonetheless be
noted. The first comes from the regulation of counter-measures
by ARSIWA (2001) which codified and crystallized the limits and
conditions for counter-measures to be lawful. It is for the first
time that these are collected in a single instrument, which has
quickly become a reference. These conditions and limitations
limit the margin of self-appreciation and introduce an obligation
of motivation for States resorting to countermeasures. As such,
ARSIWA can be seen as a legal tool for taming the excesses of
unilateral private justice.
The second evolution comes from the growing tendency of
the Security Council to act as a law-enforcement body. Of course,
the mandatory decisions adopted by the Security Council under
Chapter VII of the Charter are based upon political considerations,
rather than legal reasoning. However, after 1990 and increasingly
ever since, the Security Council has adopted enforcement measures
presented as the consequences of prior violations of international
law by the targeted entities. As underscored by Vera GowllandDebbas, “in numerous cases, [decisions had] been based not only
on a finding of fact, but also on one of law: linking threats to, or
breaches of the peace to serious and grave breaches of international
law; attributing these violations to certain entities; and, despite
the evident political origin of this qualification, applying in
consequence measures that divest states and individuals of certain
legal rights.” 5 The institutionalization of enforcement is certainly
a sign of a more mature, less primitive legal system. At the same
Panel Report, Mexico — Tax Measures on Soft Drinks and Other Beverages, WT/
DS308/R, adopted 7 October 2005, § 8.178.
5
V. Gowlland-Debbas, op. cit. fn. 3, 123.
4
12
Countermeasures and Sanctions
time, since “the law must be the same for all, whether it protects
or punishes”,6 such a tendency creates expectations of a more
systematic, less aleatory intervention on the part of the Security
Council. However, these expectations have not been met so far.
The third evolution consists in an exponential growth
of unilateral coercive measures or as, they are usually called,
“unilateral sanctions”. The concept is largely undefined legally. But
the working definition proposed by the Human Rights Council is
sufficiently explanatory to be borrowed here: “the use of economic,
trade or other measures taken by a State, group of States or
international organizations acting autonomously to compel a
change of policy of another State or to pressure individuals, groups
or entities in targeted States to influence a course of action without
the authorization of the Security Council.”7 These measures are
unilateral if they do not qualify as measures of implementation of
sanctions adopted by the Security Council.8 Several dozen states and
several thousand people are now subject to these types of measures.
Of course, unilateral coercion has not emerged in recent years or
even decades, but once isolated and scarce, coercive measures have
become major instruments of the foreign policy of some States —
indeed, it can be said that they are the tool par excellence in case
of failure of negotiations. In this respect, a sparse past practice has
developed into a systematic yet highly unregulated policy, which
poses a challenge to the system of collective security.
These three major evolutions reveal the centripetal dynamics
at work in the international system. The regulation of countermeasures is a dyke against an abusive exercise of this form of
self-help. The conditions and limitations crystallized in ARSIWA
Declaration of Human and Civic Rights of 26 August 1789, Article 6.
Human Rights Council, Research-based progress report of the Human Rights
Council Advisory Committee containing recommendations on mechanisms to assess
the negative impact of unilateral coercive measures on the enjoyment of human
rights and to promote accountability, UN doc. A/HRC/28/74 (2015) § 9.
8
See below, p. 41.
6
7
13
Alina Miron
are as many parameters for third parties to assess the legality of
the counter-measures. As such, they are a form of international
regulation and amount to legislative multilateralism. The practice
of the Security Council is a different path towards a more
integrated system, of an institutional multilateralism, an incipit
institutionalization of enforcement. To be sure, for the moment,
the action of the Security Council appears at best random if not
arbitrary. Therefore, institutionalization cannot be said to rime
with centralization. Institutional multilateralism remains weak
and it is further weakened by the growth of unilateral enforcement
measures, which appear as a disruptive form of resistance to
any form of multilateralism. Through the adoption of unilateral
coercive measures lacking any basis in international law, States
show that they can still act without having to internationally justify
their action, outside any existing institutional framework and thus
circumvent any legislative or institutional multilateralism.
Before discussing the regime of countermeasures and the lack
of regime of unilateral “sanctions”, it is interesting to note how the
progressive taming of self-help in international law was reflected
by shifts in terminology. The present-day discussion on the use of
the term “sanctions”9 to designate unilateral coercive measures
could be the sign of a new evolution in the law of enforcement, even
though no consensual rules have so far developed in this respect.
Section 2. Conceptual and Terminological Evolutions
Several concepts have been devised in time to describe the
phenomena of self-help in international law. Reprisals and
retaliation are probably the oldest one. Etymologically, the term
9
The inverted commas are meant to express disagreement with the wide usage of
the term “sanctions”, which has a legal connotation of empowerment to punish,
which unilateral measures are lacking. On these terminological debates, see below,
pp. 41-43.
14
Countermeasures and Sanctions
“reprisal” is said to come from the French reprendre (“to re-take”).
“Reprisals, indeed, initially involved the taking of property of the
wrongdoer to the extent of the injury suffered. Being grounded
on notions of collective liability, reprisals could be taken against
any member of the community of the wrongdoer”.10 “Retaliation”
comes from Late Latin retaliare “pay back in kind”, a verb composed
of re- “back” and the Latin “talio” (“exaction of payment in kind”),
influenced by talis (“suchlike”). It is often associated with the idiom
“an eye for an eye (and a tooth for a tooth)”. Both words (reprisals
and retaliation) are suggestive of a primitive system of restoration
of justice, in which the subjects (victims) are also the agents of
law-enforcement. The only limitation to the victims’ power of selfappreciation comes from a vague idea of proportionality, meant to
lower the risks of abuse and mistakes. As Professor Abi-Saab’s noted,
“in their armed version, predominant before the Charter, by the very
nature of the means used, reprisals were measures of last resort,
with a largely afflictive or punitive purpose, restoring the balance
between the parties, by the infliction of an equivalent damage, in
absence of a form of compensation.” 11
The first evolution of the regime consisted in a gradual
regulation of the means of reprisals, even though no rules developed
to restrict the right to resort to reprisals. For the first time in 1907,
the Drago-Porter Convention prohibited the use of force for the
recovery of debts and constituted the first limitation of the means
of reaction. “Subsequently, the Naulilaa Arbitration (Portugal/
Germany) award of 1928 formally articulated the law of reprisals,
including the requirements of a prior wrong, proportionality and
sommation.”12
F. I. Paddeu, Countermeasures (MPEPIL 2015) § 4.
G. Abi-Saab, “Cours général de droit international public”, Recueil, vol. 207 (1987)
297. Our translation from the original: “Dans leur version armée, prédominante avant
la Charte, de par la nature même des moyens utilisés, les représailles étaient des mesures
de dernier recours, à but largement afflictif ou punitif, en rétablissant l’équilibre entre les
parties, moyennant un dommage équivalent, faute de réparation.”
12
F.I. Paddeu, op. cit. fn. 9, § 9.
10
11
15
Alina Miron
At present, the word “reprisals” is still used in the field of
humanitarian law, as equivalent to “belligerent reprisals”, i.e.
“action taken in time of international armed conflict, which may
consist of violations of international humanitarian law.”13 However,
even in this context, they are viewed with great suspicion. The
Code of Customary International Humanitarian Law drafted by the
International Committee of the Red Cross provides in Rule 145:
“Where not prohibited by international law, belligerent reprisals are
subject to stringent conditions.” And the commentary adds: “The
reticence to approve of the resort to belligerent reprisals, together
with the stringent conditions found in official practice, indicates
that the international community is increasingly opposed to the
use of violations of international humanitarian law as a method of
trying to enforce the law.”14
Also a measure of self-help, retorsion is defined as “‘unfriendly’
conduct which is not inconsistent with any international obligation
of the State engaging in it even though it may be a response to
an internationally wrongful act.”15 Consisting of lawful measures,
retorsion is not regulated by international law. Therefore the
motivations for adopting acts of retorsion or their intensity are
hardly challengeable, unless their cumulative effect is constitutive of
a violation of an international rule like the one of non-intervention
in the internal affairs of a State.16
The term “countermeasures” was seldom used before the 1970s.
Its consecration came from the award in Air Service Agreement
of 27 March 1946.17 Shortly after the award, “the ILC substituted
ILC, Responsibility of States for Internationally Wrongful Acts, with commentaries
[2001], Official Records of the General Assembly, Fifty-sixth session, Supplement No. 10
(A/56/10), art. 22, 75 [3].
14
ICRC, Customary International Humanitarian Law, CUP (2006), also online:
<https://www.icrc.org/en/doc/resources/documents/publication/pcustom.htm>.
15
ILC, fn. 13 above, 325 [3].
16
See below p. 17 on the lawfulness of “sanctions”.
17
Air Service Agreement of 27 March 1946 between the United States of America and
France, RIAA, vol. XVIII, pp. 417-493.
13
16
Countermeasures and Sanctions
the word ‘sanction’ (…) with the word ‘countermeasure’ in its Draft
Articles on State Responsibility.”18 Prior to the adoption of ARSIWA,
the International Court of Justice used the same terminology
in Tehran Hostages,19 Military and Paramilitary Activities,20 and
Gabcíkovo-Nagymaros Project21 judgments, thus greatly contributing
to its dissemination. “Countermeasures” is now a generally accepted
concept, used even in the context of particular regimes like WTO:
“4.40 We note that the term ‘countermeasures’ is the general
term used by the ILC in the context of its Draft Articles on State
Responsibility, to designate temporary measures that injured
States may take in response to breaches of obligations under
international law.
4.41 We agree that this term, as understood in public
international law, may usefully inform our understanding of
the same term, as used in the SCM Agreement [Agreement on
Subsidies and Countervailing Measures]. Indeed, we find that
the term ‘countermeasures’, in the SCM Agreement, describes
measures that are in the nature of countermeasures as defined
in the ILC’s Draft Articles on State Responsibility.
4.42 At this stage of our analysis, we therefore find that the
term ‘countermeasures’ essentially characterizes the nature
of the measures to be authorized, i.e. temporary measures
that would otherwise be contrary to obligations under the WTO
Agreement and that are taken in response to a breach of an
obligation under the SCM Agreement. This is also consistent
18
D. Alland, “The Implementation of International Responsibility. The Definition of
Countermeasures”, in J. Crawford, A. Pellet, S. Olleson (eds.), The Law of international
Responsibility (Oxford Commentaries in International Law 2010) 1127.
19
United States Diplomatic and Consular Staff in Tehran (United States of America v.
Iran) (Merits) [1980] ICJ Rep [53].
20
Military and Paramilitary Activities in and against Nicaragua (Nicaragua v. United
States of America) (Merits) [1986] ICJ Rep [201].
21
Gabčíkovo-Nagymaros Project (Hungary/Slovakia) (Merits) [1997] ICJ Rep [69].
17
Alina Miron
with the meaning of this term in public international law as
reflected in the ILC Articles on State Responsibility”.22
Section 3. Definition of Countermeasures
Curiously, neither ARSIWA nor its commentaries define
the concept of countermeasures. The WTO panel’s conclusions
quoted above gave a partial definition, insisting on the reactive
and a priori unlawful character of the measures adopted. Denis
Alland defines them as “pacific unilateral reactions which are
intrinsically unlawful, which are adopted by one or more States
against another State, when the former consider that the latter
has committed an internationally wrongful act which could
justify such a reaction.”23 In his definition, Alland adopts a
voluntarist approach and puts the focus on the self-appreciation
by the victim both of the wrongfulness of the initial act and of
the appropriateness of its own reaction. Crawford’s definition,
inspired by an objectivist approach, is both circumstantial and
purpose-oriented: “countermeasures involve non-compliance by
one state with an international obligation owed towards another
state, adopted in response to a prior breach of international law
by that other state and aimed at inducing it to comply with its
obligations of cessation and reparation.”24
In all these definitions, the functions of countermeasures
appear as distinctive characteristics. The first function is
22
WTO, United States—Subsidies on Upland Cotton, Recourse to Arbitration by the
United States under Article 22.6 of the DSU and Article 4.11 of the SCM Agreement, Case
No. WT/DS267/ARB/1, Decision by the Arbitrator, 31 August 2009, §§ 4.40–4.42
(footnotes omitted; emphasis added) and United States—Subsidies on Upland Cotton,
Recourse to Arbitration by the United States under Article 22.6 of the DSU and Article
7.10 of the SCM Agreement, Case No. WT/DS267/ARB/2, Decision by the Arbitrator,
31 August 2009, §§ 4.30–4.32 (footnotes omitted).
23
D. Alland, op. cit. fn. 18, 1135.
24
J. Crawford, State Responsibility: The General Part (Cambridge Studies in
International and Comparative Law 2013) 685.
18
Countermeasures and Sanctions
that of a shield against wrongfulness. According to Article 22
ARSIWA, countermeasures are among the six circumstances
precluding wrongfulness (consent, self-defence, countermeasures,
force majeure, distress, necessity). Countermeasures have
thus an exculpatory function and are invoked as a defence.
But countermeasures serve also and foremost as means of
implementation of State responsibility and, as such, of enforcement
of international law. In this context, they play a double role:
they are reactive tools intended to induce the wrongdoing State
to comply with its obligations of cessation (if the wrongful act
is continuing).25 They also have a reparatory function, since their
object is to obtain compensation for the damage inflicted. However,
they are not intended to be punitive.26
To sum up, the essential characteristics of countermeasures are
the following:
• they are unilateral acts and actions of a State;
• they are unlawful by nature (they amount to violations
of international obligations), but become lawful by
purpose, if they otherwise comply with the regime of
countermeasures;
• they are adopted in reaction to a prior violation of
international law;
• they are directed against the offending State;
• they are adopted to secure compliance with international
obligations (and thus restore the law).
ILC, fn. 13 above, art. 18, 70 [3].
See also F.I. Paddeu, cit. fn. 10, §16: 1. “Countermeasures are thus instrumental in
relation to the implementation of State responsibility; they have a purely remedial
function and may not be used as a tool of repression or punishment (…). In other
words, the countermeasure is not an end in itself, but only a means to an end.”
25
26
19
Alina Miron
Section 4. Countermeasures and Coterminous
Contemporary Concepts
Distinction with suspension of treaty obligations for material
breach (Article 60 of the Vienna Convention on the Law of Treaties).
As reactions to prior violations, countermeasures must be
distinguished from the suspension or termination of a treaty under
Article 60 of the VCLT. The regime of countermeasures and the
regime of termination/suspension for material breach differ both in
the conditions under which States can resort to these measures of
self-help and in their consequences. Amalgam is neither permitted
nor suitable. “Where countermeasures are taken in accordance with
[ARSIWA], the underlying obligation is not suspended, still less
terminated; the wrongfulness of the conduct in question is precluded
for the time being by reason of its character as a countermeasure,
but only provided that and for so long as the necessary conditions
for taking countermeasures are satisfied.”27
For this reason, the conditions are also more stringent in the
law of treaties. As the Court held in Gabčíkovo-Nagymaros Project
“it is only a material breach of the treaty itself, by a State party to
that treaty, which entitles the other party to rely on it as a ground
for terminating the treaty. The violation of other treaty rules or of
rules of general international law may justify the taking of certain
measures, including countermeasures, by the injured State, but
it does not constitute a ground for termination under the law of
treaties.”28 Article 60, paragraph 1 of that Convention provides that:
“A material breach of a bilateral treaty by one of the parties entitles
the other to invoke the breach as a ground for terminating the
ILC, fn. 13 above, art. 22, 75 [4].
Gabčíkovo-Nagymaros Project, fn.21 above [106]; See also ILC, fn. 13 above, 128
[4]: “Where a treaty is terminated or suspended in accordance with article 60, the
substantive legal obligations of the States parties will be affected, but this is quite
different from the question of responsibility that may already have arisen from the
breach”.
27
28
20
Countermeasures and Sanctions
treaty or suspending its operation in whole or in part.” The concept
of “material breach” is defined in paragraph 3 of the same provision:
“A material breach of a treaty, for the purposes of this article,
consists in:
(a) A repudiation of the treaty not sanctioned by the present
Convention; or
(b) The violation of a provision essential to the
accomplishment of the object or purpose of the treaty”.
In Gabčíkovo-Nagymaros Project, the ICJ did not analyse the
concept of material breach and simply concluded that Slovakia
showed willingness to comply and that, in the circumstances of the
case, the invocation of termination by Hungary was premature.29
A more thorough interpretation of Article 60, paragraph 3 VCLT
may be found in the partial award in the Slovenia/Croatia case. In
this case, Slovenia’s Agent was found to have had impermissible
communications with the arbitrator of Slovenian nationality,
during the phase of deliberations. Following the resignation of
this faulty arbitrator, as well as the one of Croatian nationality,
the Tribunal was reconstituted. Before deciding on the merits, the
Tribunal addressed Croatia’s claim of termination of the Arbitration
Agreement and consequently of the arbitration process. The
Tribunal’s analysis deserves to be quoted in extenso:
“213. To ‘repudiate’ an agreement amounts to a ‘refus[al] to
fulfil or discharge’ it. A repudiation of a treaty, as contemplated
under Article 60, paragraph 3, subparagraph (a) of the Vienna
Convention, involves the rejection of a treaty as a whole by
the defaulting party. (…) In the Tribunal’s view, the right of a
party to seek the termination of a treaty on the ground that the
other party has repudiated it is closely related to the principle
inadimplenti non est adimplendum. To safeguard expectations of
29
Gabčíkovo-Nagymaros Project, fn. 21 above [107]-[109].
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reciprocity underlying a treaty relationship, a party should not
be required to perform a treaty that the other party has clearly
and definitively rejected. (…)
214. (…) A repudiation of the Agreement as a whole must be
distinguished from a purported breach of any of its provisions,
which may constitute a material breach under Article 60,
paragraph 3, subparagraph (b) of the Vienna Convention.
215. Turning, then, to Article 60, paragraph 3, subparagraph
(b) of the Vienna Convention, the Tribunal first observes that
Article 60, paragraph 3, subparagraph (b) does not refer to the
intensity or the gravity of the breach, but instead requires that
the provision breached be essential for the accomplishment of the
treaty’s object and purpose. (…)
218. It results from the text itself of Article 60, paragraph 3,
subparagraph (b) and from the jurisprudence thus recalled that
a tribunal having to apply that provision must first determine
the object and purpose of the treaty which has been breached.
Termination of a treaty due to such a breach under Article 60,
paragraph 1 is warranted only if the breach defeats the object
and purpose of the treaty. (…)
219. The treaty in question is of a specific kind. It is an
arbitration agreement. As stated by the ICJ, ‘when States sign
an arbitration agreement, they are concluding an agreement
with a very specific object and purpose: to entrust an arbitration
tribunal with the task of settling a dispute in accordance with
the terms agreed by the parties, who define in the agreement
the jurisdiction of the tribunal and determine its limits’. In the
present case, the Arbitration Agreement notes in its preamble
that, ‘through numerous attempts, the Parties have not resolved
their territorial and maritime dispute in the course of the past
years”. It contemplates the constitution of an arbitral tribunal,
fixes its composition and task and determines the applicable
22
Countermeasures and Sanctions
law and procedure to be followed. It finally states that ‘[t]he
award shall be binding on the Parties and shall constitute
a definitive settlement of the dispute’. The Arbitration
Agreement, accordingly, is premised on a desire for the peaceful
and definitive settlement of a dispute that had theretofore been
incapable of amicable resolution.
220. However, this was not the only object and purpose of the
Arbitration Agreement. (…) Indeed, the Agreement is intimately
tied to the process of Croatia’s accession to the European
Union; Article 11, paragraph 3, for instance, provided that ‘[a]ll
procedural time limits expressed in this Agreement shall start
to apply from the date of the signature of Croatia’s European
Union Accession Treaty.’ The Agreement was negotiated with
the full support of the European Union, and the Presidency of
the Council of the European Union witnessed the signature
of the Agreement. Thus, a nexus was established between the
settlement of the territorial and maritime dispute and the accession
of Croatia to the European Union.
221. Croatia entered the European Union and the arbitral
process started. It would have to be stopped if the breaches
of the Arbitration Agreement by Slovenia entitled Croatia
unilaterally to terminate the Agreement in accordance with
Article 65 of the Vienna Convention. In such a case, only one of
the ‘objects and purposes’ of the Agreement, as it were, would
be achieved. However, as will appear later, this result does not
arise in the present case.
222. The remaining object and purpose of the Arbitration
Agreement is the settlement of the maritime and territorial
dispute between the Parties in accordance with the applicable
rules. The decisive question is whether the breaches of the
Agreement by Slovenia rendered the accomplishment of this object
and purpose impossible. (…)
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225. Accordingly, and in view of the remedial action taken,
the Tribunal determines that the breaches of the Arbitration
Agreement by Slovenia do not render the continuation of
the proceedings impossible and, therefore, do not defeat the
object and purpose of the Agreement. Accordingly, Croatia
was not entitled to terminate the Agreement under Article
60, paragraph 1 of the Vienna Convention. The Arbitration
Agreement remains in force”.30
Exceptio non adimpleti contractus. Prior to the codification of
the law of responsibility by ARSIWA, there were intense discussions
in academia on the general principle of exceptio non adimpleti
contractus (exception of non-performance). This would permit one
State to withhold performance of those of its own obligations which
are reciprocal to, i.e., linked in a synallagmatic relationship, with
the obligations violated by the other party. The exceptio is an urban
myth of international law — it appears at times in the opinions of
some judges31 and in various academic writings, it is said to be “so
universally recognized, that it must be applied in international
relations also”.32 Yet it has never made it to the level of an official
recognition.
The exceptio was implicitly left out of the VCLT33 and
considered to be subsumed in the concept of countermeasures
in ARSIWA.34 The ICJ refrained both from consecrating and from
burying the exceptio, as it could have done in the case Application
of the Interim Accord of 13 September 1995. In this case, Greece
30
Republic of Slovenia v. Republic of Croatia (Partial Award) (2016) §§ 213-225
(emphasis added).
31
Application of the Interim Accord of 13 September 1995 (the former Yugoslav Republic
of Macedonia v. Greece) (Merits) [2011] ICJ [114]-[117] and the Separate Opinion of
Judge Simma [2]-[20].
32
Diversion of Water from the Meuse (Netherlands v. Belgium), Dissenting opinion by
Judge Anzilotti, (Merits) PCIJ [1937] 50.
33
D. Azaria, Exception of Non-Performance (MPEPIL 2015) §§ 4-5.
34
J. Crawford, op. cit. fn. 24, at J. Crawford, State Responsibility: The General Part
(Cambridge Studies in International and Comparative Law 2013) 678-682.
24
Countermeasures and Sanctions
had raised objections to FYROM’s entry into NATO and the
Court held this conduct to be a violation of the Interim Accord.
As means of defence, the respondent invoked several forms
of self-help (exceptio, suspension under Article 60 VCLT and
countermeasures). The ICJ dodged the question of the existence
of the exceptio as a general principle, noting that Greece’s three
defences were all based on the condition of a prior violation of
international law by FYROM. Since it found that no violation
could be attributable to FYROM, Greece could therefore not rely
on any of these defences:
“The Respondent has thus failed to establish that the
conditions which it has itself asserted would be necessary
for the application of the exceptio have been satisfied in
this case. It is, therefore, unnecessary for the Court to
determine whether that doctrine forms part of contemporary
international law”.35
Judge Simma rightly criticized this extreme application of the
principle of economy of means, which led the Court to adopt its
decision on the basis of an un-identified legal rule:
“Such abstinence will once again disappoint those observers
who might have expected some illuminating words on
rather controversial questions of law; a decision a little less
“transactional” in a matter in which the Court could have
afforded to speak out. As concerns the exceptio non adimpleti
contractus in particular, it appears that the Court openly shies
away from taking a stand. (…) That much about jura novit
curia”.36
35
36
Application of the Interim Accord, above fn. 31 above, [161].
Ibid., Separate Opinion of Judge Simma [6] (emphasis added).
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CHAPTER 2:
The Regime of Counter-Measures: International
Regulation of Their Conditions and Limits
Articles 49 to 53 of ARSIWA establish conditions regulating the
lawfulness of countermeasures. Their lawfulness is extrinsically
determined by the priori wrongful act of a State (conditions 1 & 2
below) and intrinsically by a series of substantive and procedural
conditions aiming at circumscribing their potentially noxious
effects (conditions 3 to 6 below):
1. the identification and establishment of a prior unlawful act;
2. the target of the countermeasures (the offending State);
3. the material object of countermeasures (permitted and
excluded);
4. the effect ratione temporis of countermeasures (temporary
and reversible);
5. proportionality;
6. procedural conditions (notification/sommation).
These conditions are as many tools to reduce arbitrary or abusive
recourse to countermeasures. They put on the State resorting to
countermeasures the burden of justifying their necessity. Short of
substituting this form of private justice by a centralized mechanism
of control and enforcement, the ILC provided for substantive rules
which allow to assess the lawfulness of countermeasures. In the
absence of a judicial mechanism to make such determination, these
conditions may at least serve the purpose of civilizing the dialogue
between the offending and the injured State, by providing a
common set of rules of reference.
26
Countermeasures and Sanctions
Section 1. Identification and Establishment of a Prior
Unlawful Act
A. Self-Appreciation on the Basis of Objective Standards
Countermeasures can be resorted to in case of the existence of a
prior unlawful act. An act is unlawful if it breaches an international
obligation. The purpose of countermeasure is to restore compliance
with particular, well-identified international obligations. It is not to
punish or induce a State to change its policy in general or even less
to provoke a change of regime.
The injured State is the first to qualify the acts by another State
as a violation of international law. It enjoys indeed the privilege
of self-appreciation of the existence of a prior unlawful act by
another State and does not need to seek a prior qualification of
unlawfulness or an authorization by any third party, unless special
rules provide for, like in the WTO regime. As Alland noted, “the
unilateral character of countermeasures goes hand in hand with
their self-assessed character.”37 This power of self-appreciation
was confirmed by the arbitral tribunal’s remark in the Air Service
Agreement case, to the effect that “each State establishes for itself
its legal situation vis-à-vis other States”.38
But this unilateral assessment is part of a bilateral dialogue
between the offending and the injured State, and the conditions
established in Articles 49 to 52 provide a framework of reference
in this respect. These are objective standards, useful not only for
the interested States, but also for third parties (judicial or other),
which may be called to express a view on the legal positions of the
offending and injured State. A State which does not seek in any
way to identify the legal rules violated prior to the adoption of
countermeasures and does not rely on any prior notification will
have a hard time to justify, a posteriori, the lawfulness of its conduct.
37
38
D. Alland, op. cit. fn. 18, at 1129.
Air Service Agreement, fn. 17 above, 416 [81].
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As Professor Abi-Saab noted, “[i]t is therefore at its own risk, legally
speaking, that [the injured State] undertakes these measures, in the
event that its ‘self-interpretation’ (or qualification of the facts or
situation and its subsequent reaction) is subsequently rejected by a
competent judicial or political body.”39
The objective qualification of a wrongful act by an institutional
body is an antidote to subjectivity and to the risks of mistake
triggered by any unilateral appreciation.40 When such a body is a
judicial one, the quality of the legal reasoning and the guarantees
of the legal process make the analysis difficult to challenge. This
applies in particular to the advisory opinions of the International
Court of Justice, which formally lack binding effect, but carry
nonetheless great legal weight. In some of its advisory opinions,
like the Wall and the Chagos one, the Court not only gave abstract
interpretations of the law, but also reached the conclusions that
Israel,41 on the one hand, and the United Kingdom on the other,42
violated international law. Such statements of responsibility
implicitly authorize at least the injured States, and possibly third
States, to adopt countermeasures. As far as the Chagos case is
concerned, a chamber of ITLOS considered that the ICJ’s advisory
39
G. Abi-Saab, op. cit. fn. 11, 299. Our translation from the original: “C’est donc à
ses risques et périls, juridiquement parlant, qu’il entreprend ces mesures, au cas où
son ‘auto-interprétation’ (ou qualification des faits ou de la situation et de sa réaction
subséquente) est rejetée par la suite par un organe juridictionnel ou politique compétent.”
40
In the same vein, Professor Abi-Saab insisted that: “The situation is very
different if there is a social ‘finding’ of the violation, even if it is not accompanied
by a decision on the measures to be taken. In this case, the injured State, by taking
the countermeasures it considers appropriate, does not run a risk in the first
category, but the risk remains in the second (compliance with the conditions of
countermeasures).” Our translation from the original : “La situation est très différente
s’il existe une ‘constatation’ sociale de la violation, même si elle n’est pas assortie de
décision quant aux mesures à prendre. Dans ce cas, l’Etat lésé, en prenant les contremesures qu’il considère appropriées, ne court pas de risque quant à la première catégorie,
mais le risque subsiste quant à la seconde (le respect des conditions).” (ibid., at 299).
41
Legal Consequences of the Construction of a Wall in the Occupied Palestinian Territory
(Advisory Opinion) [2004] ICJ Rep [114]-[137].
42
Ibid., [177]-[182].
28
Countermeasures and Sanctions
opinion constituted an “authoritative determination of the main
issues relating to sovereignty claims”43 and distinguished it from
other law of the sea cases in which the sovereignty disputes had
not been the object of an objective determination by other judicial
bodies.44
Resolutions of the General Assembly of the United Nations
which provide legal determinations, insofar as they qualify a factual
situation as a violation of international law, may equally have
a legitimizing effect, though to a lesser extent than the advisory
opinions.45 As held by the arbitral tribunal in the Coastal State Rights
case, “the effect of factual and legal determination made in UNGA
resolutions depends largely on their content and the conditions
and context of their adoption. So does the weight to be given to
such resolutions by an international court or tribunal.”46 Regarding
the General Assembly resolutions concerning the situation in the
Crimea,47 the tribunal noted they were of an ambiguous content
43
Dispute concerning delimitation of the maritime boundary between Mauritius and
Maldives in the Indian Ocean (Mauritius/Maldives) (Preliminary Objections) [2021]
[244]. On the legal effect of an advisory opinion of the ICJ, see also § 202-212.
44
Referring to the PCA arbitration Dispute Concerning Coastal State Rights in the
Black Sea, Sea of Azov, and Kerch Strait (Ukraine v. the Russian Federation), in which
the question of sovereignty over Crimea was raised (ibid., at § 244).
45
C.J.R. Dugard, “The Legal Effect of United Nations Resolutions on Apartheid”,
South African Law Journal 83 (1966), 44-59 at 47-48; M. Divac Öberg, “The Legal
Effects of Resolutions of the UN Security Council and General Assembly in the
Jurisprudence of the ICJ”, European Journal of International Law 165, 2006, 879-906;
See for example the use of A/RES/2625 of 24 October 1970 (Declaration on Principles
of International Law concerning Friendly Relations and Co-operation among States
in accordance with the Charter of the United Nations) in Legal Consequences of the
Separation of the Chagos Archipelago from Mauritius in 1965 (Advisory opinion) [2019]
ICJ [180]; also A/RES/2145 of 27 October 1966 in Legal Consequences for States of the
Continued Presence of South Africa in Namibia (South West Africa) (Advisory opinion)
[1971] ICJ [95].
46
PCA Dispute Concerning Coastal State Rights in the Black Sea, Sea of Azov, and Kerch
Strait (Ukraine v. the Russian Federation) (Preliminary Objections) [2020] § 174.
47
A/RES/73/194 of 17 December 2018 (Problem of the militarization of the Autonomous
Republic of Crimea and the city of Sevastopol, Ukraine, as well as parts of the Black Sea
and the Sea of Azov); A/RES/73/263 of 22 December 2018 (Situation of human rights in
the Autonomous Republic of Crimea and the city of Sevastopol, Ukraine).
29
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and of a hortatory effect and took account of the divisive votes and
opinions expressed during their adoption to conclude that they
were not authoritative for resolving the sovereignty dispute.48 That
dispute remains pending in international law,49 but is outside of the
scope of the jurisdiction of an arbitral tribunal established under
Annex VII of UNCLOS.
B. Determination of an Unlawful Act in the Presence of
Security Exceptions
According to Article 12 ARSIWA, “[t]here is a breach of an
international obligation when an act of a State is not in conformity
with what is required of it by that obligation, regardless of its origin
and character”. However, in some instance, the qualification of a
prior unlawful act may be challenging, in particular when a legal
rule is assorted by exceptions. An act may appear at first sight as
unlawful because contrary to one State’s treaty obligations for
instance, but ultimately reveal itself as lawful because permitted by
one particular clause of that treaty.
A notorious example is provided by the security clauses inserted
in some bilateral or multilateral treaties, allowing States to liberate
themselves from their obligations, if the circumstances provided
therein are fulfilled. The objective assessment of these clauses is
all the more difficult that States enjoy discretion to appreciate their
security needs. The security exception could thus be invoked as a
blank cheque to prevent the qualification of an act as internationally
wrongful.
Well-known security clauses inserted in some bilateral treaties
were submitted to judicial scrutiny, like those in the treaties
of commerce and amity signed by US with Nicaragua and Iran
respectively: “The present Treaty shall not preclude the application
of measures: d) … necessary to protect [one Party’s] essential
48
49
Dispute Concerning Coastal State Rights fn. 46 above, §§ 171-178.
Ibid. § 178.
30
Countermeasures and Sanctions
security interests.” In Military and Paramilitary Activities case, the
US claimed that the Sandinista revolution posed an unusual threat
to its security and foreign policy. The ICJ took upon itself the power
to assess both the security interests at stake and the necessity of
the means of retaliation adopted by US, in particular the use of
force against Nicaragua’s territory and a comprehensive economic
embargo:
“[The] concept of essential security interests certainly extends
beyond the concept of an armed attack, and has been subject to
very broad interpretations in the past. The Court has therefore
to assess whether the risk run by these ‘essential security interests’
is reasonable, and secondly, whether the measures presented as
being designed to protect these interests are not merely useful
but ‘necessary’”.50
Without substituting its appreciation to that of the interested
State, the Court submitted the necessity requirement to a test of
plausibility:
“[T]he Court emphasizes the importance of the word ‘necessary’
in Article XXI: the measures taken must not merely be such as
tend to protect the essential security interests of the party taking
them, but must be ‘necessary’ for that purpose. Taking into
account the whole situation of the United States in relation
to Central America (…), the Court considers that the mining
of Nicaraguan ports, and the direct attacks on ports and oil
installations, cannot possibly be justified as ‘necessary’ to
protect the essential security interests of the United States.
As to the trade embargo (…) whether a measure is necessary
to protect the essential security interests of a party is not (…)
purely a question for the subjective judgment of the party; the
text does not refer to what the party ‘considers necessary’ for
50
Military and Paramilitary Activities in and against Nicaragua (Nicaragua v. United
States of America) (Merits) [1986] ICJ Rep [224] (emphasis added).
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that purpose. Since no evidence at all is available to show how
Nicaraguan policies had in fact become a threat to ‘essential
security interests’ in May 1985, when those policies had been
consistent, and consistently criticized by the United States,
for four years previously, the Court is unable to find that the
embargo was ‘necessary’ to protect those interests..”.51
The standard of judicial review of the security exception remains
nonetheless low. Even if the ICJ considered itself empowered to
control both the existence of a threat to the security interests and
the necessity of the measures of retaliation adopted, its assessment
was actually based upon the justifications provided by the US. And
in this case, the sincerity and the credibility of their motivation
did not convince the Court. Its review was thus a review of the
motivation provided, rather than of the measures themselves. But
the Court did not substitute itself to State’s authorities and made
no judgment of the opportunity of the measures adopted by the US.
The reasoning was slightly different in the Oil Platforms case.
The US had bombed a number of Iranian oil platforms, in response
to a number of attacks on Kuwaiti ships, flying US and UK flags.
One of the issues before the Court was whether US’s use of force in
these circumstances could be justified as self-defence. But US also
claimed that, while its attacks may appear as violations of Art X of
the 1955 Treaty of Amity with Iran (according to which “[b]etween
the territories of the two High Contracting Parties there shall be
freedom of commerce and navigation”), they were nonetheless
justified under the essential security clause of Art XX, paragraph 1
(d) of that Treaty.52 The Court had therefore to determine whether
the bombing of Iranian oil platforms was “necessary to protect [US]
Ibid., at 282 (emphasis added).
“The present Treaty shall not preclude the application of measures: d) necessary to
fulfil the obligations of a High Contracting Party for the maintenance or restoration
of international peace and security, or necessary to protect its essential security
interests”.
51
52
32
Countermeasures and Sanctions
essential security interests”.53 To this effect, it conflated the selfdefence and the security arguments, considering that “action taken
in self-defence, individual or collective, might be considered as part
of the wider category of measures qualified in (…) ‘as necessary to
protect the essential security interests’ of a party”54. The reason
for such conflation is that the US themselves claimed, before and
during the proceedings, that the real dispute about the parties was
about the use of force and self-defence.
The ICJ proceeded to a teleological and systemic interpretation
of the security clause to conclude that it could not justify measures
involving unlawful use of force in international law:
“The Court cannot accept that Article XX, paragraph 1 (d), of the
1955 Treaty was intended to operate wholly independently of the
relevant rules of international law on the use of force, so as to be
capable of being successfully invoked, even in the limited context
of a claim for breach of the Treaty, in relation to an unlawful use
of force. The application of the relevant rules of international
law relating to this question thus forms an integral part of the
task of interpretation entrusted to the Court by Article XXI,
paragraph 2, of the 1955 Treaty.”55
In the end, the Court considered that, in the case sub judice,
the assessment of the necessity of the measures adopted largely
overlapped with the materialization of a situation of self-defence:
“In the present case, the question whether the measures taken
were ‘necessary’ overlaps with the question of their validity
53
Oil Platforms (Islamic Republic of Iran v. United States of America) (Merits) [2003]
ICJ Rep [32]-[34].
54
Military and Paramilitary Activities in and against Nicaragua (Nicaragua v. United
States of America), above fn. 20, [224].
55
Oil Platforms (Islamic Republic of Iran v. United States of America) (Merits) [2003]
ICJ Rep [41] (emphasis added). Interestingly, the Court based this conclusion on the
principles of teleological and systemic interpretation, rather than any jus cogens
value of the prohibition of the use of force.
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as acts of self-defence. (…) The criteria of necessity and
proportionality must be observed if a measure is to be qualified
as self-defence (…)”.56
The security exception came also before the European Court of
Justice, in the context of the challenge by targeted entities of the EU
restrictive measures, adopted against Russia following the takeover
of Crimea and the events in Donbass. These entities contested
the compatibility of these measures with the 1994 EU-Russia
Partnership Agreement. However, this one provides in its Article 99:
“Nothing in this Agreement shall prevent a Party from taking
any measures:
(1) which it considers necessary for the protection of its
essential security interests:
(d) in the event of serious internal disturbances affecting
the maintenance of law and order, in time of war or serious
international tension constituting threat of war or in order
to carry out obligations it has accepted for the purpose of
maintaining peace and international security”.
In the Rosneft case, the Grand Chamber of the ECJ conflated
security interests and international peace and security, considering
that the latter deserved protection through the activation of the
security clause, even if the European Union or its member States
were not directly affected:
“[T]he wording of that provision does not require that the ‘war’ or
‘serious international tension constituting a threat of war’ refer
to a war directly affecting the territory of the European Union.
Accordingly, events which take place in a country bordering the
European Union, such as those, which have occurred in Ukraine
and which have given rise to the restrictive measures at issue
56
Ibid. [43]; see also ibid. [78].
34
Countermeasures and Sanctions
in the main proceedings, are capable of justifying measures
designed to protect essential European Union security interests
and to maintain peace and international security, in accordance
with the specified objective, under the first subparagraph of
Article 21(1) and Article 21(2)(c) TEU, of the Union’s external
action, with due regard to the principles and purposes of the
Charter of the United Nations”.57
Like the ICJ in the Military and Paramilitary Activities
judgments,58 the ECJ exercised minimal judicial control over
political discretion in the Rosneft case. The Court broadly verified
the motivation provided by Council and the broad adequacy
between the measures and the objectives to be reached. This
very low threshold of control applies to the appreciation of the
necessity of the regime of restrictive measures, but also to the
adequacy of the individual restrictive measures adopted as
“targeted sanctions”:
“113. As regards the question whether the adoption of the
restrictive measures at issue in the main proceedings was
necessary for the protection of essential European Union
security interests and the maintenance of peace and
international security, it must be borne in mind that the Council
has a broad discretion in areas which involve the making by that
institution of political, economic and social choices, and in which
it is called upon to undertake complex assessments (…).
115. Further, as is stated in recital (2) of Regulation
No 833/2014, it is apparent from those statements that the aim
of the restrictive measures prescribed by the contested acts was
to promote a peaceful settlement of the crisis in Ukraine. That
objective is consistent with the objective of maintaining peace and
57
ECJ (Grand Chamber), PJSC Rosneft Oil Company v Her Majesty’s Treasury and Others
[2017] C-72/15, § 112.
58
Military and Paramilitary Activities in and against Nicaragua, above fn. 20, [32]-[33].
35
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international security, in accordance with the objectives of the
Union’s external action set out in Article 21 TEU.
116. In those circumstances, taking into consideration the broad
discretion enjoyed by the Council in this area, that institution
could take the view that the adoption of the restrictive
measures at issue in the main proceedings was necessary for
the protection of essential European Union security interests
and for the maintenance of peace and international security,
within the meaning of Article 99 of the EU-Russia Partnership
Agreement”.59
The security clause is also found in some multilateral treaties.
Article XXI of GATT being among the best-known examples:
“Nothing in this Agreement shall be construed
(a) to require any contracting party to furnish any information
the disclosure of which it considers contrary to its essential
security interests; or
(b) to prevent any contracting party from taking any action
which it considers necessary for the protection of its essential
security interests
(i) relating to fissionable materials or the materials from
which they are derived;
(ii) relating to the traffic in arms, ammunition and
implements of war and to such traffic in other goods and
materials as is carried on directly or indirectly for the
purpose of supplying a military establishment;
(iii) taken in time of war or other emergency in international
relations; or
59
ECJ, Rosneft, above fn. 57, §§ 113-116 (emphasis added).
36
Countermeasures and Sanctions
(c) to prevent any contracting party from taking any action in
pursuance of its obligations under the United Nations Charter
for the maintenance of international peace and security.”
The clause finally60 came to scrutiny before a WTO Panel in
2019, in the case Russia — Measures Concerning Traffic in Transit.61
The Panel rejected Russia’s claim according to which the clause was
“self-judging” and the measures adopted in pursuance of security
interests were immune from judicial control.62 For the first time, a
panel gave objective definitions of the concept of “essential security
interests” and “emergency in international situations”, providing
thus parameters to appreciate whether there is a threat and whether
the measures adopted are necessary to meet it. According to the
Panel:
“‘Essential security interests’, which is evidently a narrower
concept than ‘security interests’, may generally be understood
to refer to those interests relating to the quintessential
functions of the state, namely, the protection of its territory and
60
WTO, Analytical Index, Article XXI — Security Exceptions, [602] fn. 19 or at [604]
fn. 36.
61
WTO Panel Report, 5 April 2019, Russia — Measures Concerning Traffic in Transit,
WT/DS512. The Panel’s interpretation of the security exception is likely to have
important consequences for other pending disputes, among which the dispute
between Qatar and the UAE concerning the blockade imposed in 2017 (United Arab
Emirates — Measures Relating to Trade in Goods and Services, and Trade-Related
Aspects of Intellectual Property Rights, WT/DS526) and several WTO challenges to
the duties that the United States imposed on steel and aluminium imports (United
States — Certain Measures on Steel and Aluminium Products, WT/DS544).
62
Ibid., § 7.129. Russia’s claim could have found some support in the ICJ’s analogy
in the Military and paramilitary activities judgement, according to which: “That the
Court has jurisdiction to determine whether measures taken by one of the Parties
fall within such an exception, is also clear a contrario from the fact that the text of
Article XXI of the Treaty does not employ the wording which was already to be found
in Article XXI of the General Agreement on Tariffs and Trade. This provision of GATT,
contemplating exceptions to the normal implementation of the General Agreement,
stipulates that the Agreement is not to be construed to prevent any contracting
party from taking any action which it ‘considers necessary for the protection of its
essential security interests’, in such fields as nuclear fission, arms, etc.” (Military and
Paramilitary Activities, above fn. 20, [222]).
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its population from external threats, and the maintenance of law
and public order internally”.63
However, the Panel also insisted upon the large margin of
appreciation (or at least subjectivity) left to the State, which is
essentially qualified only by the obligation of good faith:
“The specific interests that are considered directly
relevant to the protection of a state from such external or
internal threats will depend on the particular situation and
perceptions of the state in question, and can be expected to
vary with changing circumstances. For these reasons, it is
left, in general, to every Member to define what it considers
to be its essential security interests. However, this does not
mean that a Member is free to elevate any concern to that
of an ‘essential security interest’. Rather, the discretion of
a Member to designate particular concerns as ‘essential
security interests’ is limited by its obligation to interpret
and apply Article XXI(b)(iii) of the GATT 1994 in good
faith”.64
The Panel held the security threat and the emergency in
international relations to be cognate yet distinct from a situation of
war, which is an extreme sub-category of the former:
“[T]he less characteristic is the ‘emergency in international
relations’ invoked by the Member, i.e. the further it is removed
from armed conflict, or a situation of breakdown of law and public
order (whether in the invoking Member or in its immediate
surroundings), the less obvious are the defence or military
interests, or maintenance of law and public order interests, that
can be generally expected to arise”.65
63
64
65
Ibid., at § 7.130.
Ibid., §§ 7.131-7.132 (emphasis added).
Ibid., § 7.135 (emphasis added).
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Countermeasures and Sanctions
Not only did the Panel objectively define concepts which were
usually left to the appreciation of States, but it also looked into the
necessity of the measures adopted and their connection with the
threat to security or the emergency invoked:
“Thus, as concerns the application of Article XXI(b)(iii), this
obligation is crystallized in demanding that the measures at
issue meet a minimum requirement of plausibility in relation to
the proffered essential security interests, i.e. that they are not
implausible as measures protective of these interests”.66
This being said, the connection-criterion is a low one:
“[I]t is for Russia to determine the ‘necessity’ of the measures
for the protection of its essential security interests. This
conclusion follows by logical necessity if the adjectival clause
‘which it considers’ is to be given legal effect”.67
As the ICJ and the ECJ, the standard of review retained by the
WTO Panel is therefore low. The Panel also insisted that the State
invoking the security exception has the obligation to motivate, that
is to provide a cogent and articulated reasoning, that the conditions
for the exception to arise were met:
“It is therefore incumbent on the invoking Member to articulate
the essential security interests said to arise from the emergency
in international relations sufficiently enough to demonstrate
their veracity”.68
If a factual situation does not a priori fall within the definition
of the security and emergency concepts or if the State’s measures
appear at first sight disconnected from their stated purposes, then
the State has an enhanced obligation of motivation:
66
67
68
Ibid., § 7.138 (emphasis added).
Ibid.
Ibid, § 7.134.
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“In such cases, a Member would need to articulate its essential
security interests with greater specificity than would be
required when the emergency in international relations
involved, for example, armed conflict”.69
Section 2. The Target of Countermeasures
According to Article 49 ARSIWA, the injured State can adopt
countermeasures only “against a State which is responsible for
an internationally wrongful act”, being understood that the rules
of attribution in Articles 4 to 11 ARSIWA apply for this purpose.
However, the wrongful act may have a double attribution, in
cases where there is a decision by an international organization,
giving rise to an obligation for member States to adopt
implementing measures (typically the case for resolutions of
the Security Council adopted under Chapter VII of the Charter).
In that case, one may wonder whether the injured State could
adopt countermeasures both against the international organization
and the implementing States. Article 48-1 of ILC Draft Articles
on Responsibility of International Organizations allows for
cumulative/dual responsibility:
“Where an international organization and one or more States or
other international organizations are responsible for the same
internationally wrongful act, the responsibility of each State or
organization may be invoked in relation to that act”.
Therefore, countermeasures, as tools for the implementation
of responsibility, can in principle be directed against both entities.
The question of private parties (be they nationals of the
targeting State or even nationals of third States) is different though.
Countermeasures, particularly those intervening in economic fields,
69
Ibid., § 7.135.
40
Countermeasures and Sanctions
may affect their rights or interests. According to the commentary
of Article 49 ARSIWA: “This does not mean that countermeasures
may not incidentally affect the position of third States or indeed other
third parties. (…) If they have no individual rights in the matter they
cannot complain.” 70 This distinction between rights and interests
is a restatement of the obiter dictum of the ICJ in the Barcelona
Traction case:
“This again is merely a different way of presenting the
distinction between injury in respect of a right and injury
to a simple interest. (…) Persons suffer damage or harm in
most varied circumstances. This in itself does not involve the
obligation to make reparation. Not a mere interest affected, but
solely a right infringed involves responsibility”.71
Such a distinction is based on the identification of the rules
of international law which grant rights to any such third party.
This is a classical exercise in case of States’ rights, but a less
obvious one in relation to private entities. Leaving aside the case
of human rights or international humanitarian law (which cannot
in any case be affected by countermeasures — see infra), the rights
granted to private parties in the economic field are not necessarily
international by nature.
It is unsurprising that investment tribunals, which considered
whether countermeasures could be a defence for a State in case
of violations of investors’ rights, provided quite contradictory
analyses. In three NAFTA cases,72 Mexico invoked countermeasures
as a circumstance precluding the wrongfulness of any breach of its
ILC, fn. 13 above, art. 49, 130 [5] (emphasis added).
Barcelona Traction, Light and Power Company, Limited (Belgium v. Spain)
(Preliminary objections) [1970] ICJ Rep [46] (emphasis added); see also Ahmadou
Sadio Diallo (Republic of Guinea v. Democratic Republic of the Congo) (Merits) [2010]
ICJ Rep [155].
72
ADM v. Mexico [2007]; CPI v. Mexico [2008]; Cargill [2009].
70
71
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obligations under NAFTA vis-à-vis investors.73 These cases raise
an interesting jurisdictional and admissibility question, which is
to determine whether the defence of countermeasures could at all
be raised in investment arbitrations. Indeed, any determination on
the lawfulness of countermeasures implies a determination of the
international responsibility of the target State, which is not a party
to these proceedings. Such a determination is in principle outside
the scope of jurisdiction of the tribunal, according to the Monetary
Gold principle.74 But none of the NAFTA tribunals reached any
conclusion on this preliminary point.
On merits, Mexico’s invocation of countermeasures was
rejected in all three cases, but the tribunals’ reasoning differed
significantly. As summarized by Kate Parlett:
“The tribunal in ADM v. Mexico [2007] rejected Mexico’s
countermeasures plea because it concluded that (a) the measure
was not adopted to induce compliance with NAFTA by the US
The proceedings were initiated against Mexico by American agricultural companies,
relating to the imposition of a 20 per cent tax by Mexico on soft drink bottlers using
the sweetener High Fructose Corn Syrup (HFCS). In response to its alleged violation
of the national treatment standard in Article 1102 of NAFTA, Mexico argued that
it had imposed the tax as a countermeasure against two violations of NAFTA by
the United States. All three NAFTA tribunals have issued redacted awards (see
K. Parlett, “The application of the rules on countermeasures in investment claims”,
in Sovereignty, Statehood and State Responsibility. Essays in Honour of James Crawford
(LSEPS 2015) 397).
74
The Monetary Gold principle was discussed in some investment arbitrations:
“The Monetary Gold principle represents a narrow doctrine of judicial restraint
developed by the International Court in the context of inter-State disputes, and its
application is subject to strict limits. The principle only applies if the rights and
interests of an absent State are a pre-requisite for, and form the very subject matter
of, the claimant’s claim and the decision to be rendered. Jurisdiction should not be
declined if the finding involving an absent third party is merely a finding of fact, or
the decision might affect the legal interests of a non-party State, or the decision
could well have practical effects for such State. Nor is it sufficient to establish that
such legal interests may be indirectly determined” (Ping An Life Insurance Company,
Limited and Ping An Insurance (Group) Company, Limited v Kingdom of Belgium
(Arbitration Tribunal) (Award) (2015), ICSID Case No. ARB/12/29, [127]).
73
42
Countermeasures and Sanctions
and (b) it did not meet the proportionality requirements for a
valid countermeasure under customary international law. (…)
The tribunal in CPI v. Mexico [2008] concluded that
countermeasures as a circumstance precluding wrongfulness
are not applicable to Chapter XI claims under NAFTA, because
NAFTA confers upon investors substantive rights separate and
distinct from those of the State of which they are nationals, and
countermeasures cannot affect the rights of third parties. (…)
In the third decision, the tribunal in Cargill [2009] also
rejected Mexico’s countermeasures defence, ostensibly on
the basis that investors possess rights under NAFTA against
which, a countermeasure, directed to an allegedly wrongful
act committed by the US, could not be taken. (…) The tribunal
noted that the parties ‘have characterized the issue before the
Tribunal as whether NAFTA Chapter XI investors possess not
only procedural rights of access, but also substantive rights’.
The tribunal indicated its view that investors held rights under
Chapter XI which were not ‘mere procedural rights of access’”. 75
Section 3. The Object of Countermeasures
A countermeasure is normally an international wrongful act,
adopted however in circumstances which preclude its wrongfulness.
Article 49-2 of ARSIWA provides accordingly that “countermeasures
are limited to the non-performance for the time being of international
obligations”. But ARSIWA does not pre-determine the content of
the countermeasures which a State can adopt. The power of selfappreciation of the injured State extends indeed to these aspects
too. The scope ratione materiae of admissible countermeasures is
only determined in a negative matter. First, countermeasures need
K. Parlett, op. cit. fn. 73 (see K. Parlett, “The application of the rules on
countermeasures in investment claims”, in Sovereignty, Statehood and State
Responsibility. Essays in Honour of James Crawford (LSEPS 2015) [398]-[401].
75
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not to be reciprocal, in the sense that there is no requirement that
“countermeasures [be] limited to suspension of performance of the
same or a closely related obligation.”76
Second, Article 50 of ARSIWA identifies the obligations which
cannot be affected by countermeasures and provides an important
material limitation to the injured State’s power of self-appreciation:
“Art. 50 Obligations not affected by countermeasures
1. Countermeasures shall not affect:
(a) The obligation to refrain from the threat or use of force
as embodied in the Charter of the United Nations;
(b) Obligations for the protection of fundamental human
rights;
(c) Obligations of a humanitarian character prohibiting
reprisals;
(d) Other obligations under peremptory norms of general
international law.
2. A State taking countermeasures is not relieved from fulfilling
its obligations:
(a) Under any dispute settlement procedure applicable
between it and the responsible State;
(b) To respect the inviolability of diplomatic or consular
agents, premises, archives and documents.”
According to the ILC’s commentary, “[t]he obligations dealt
with in article 50 fall into two basic categories. Paragraph 1
deals with certain obligations which by reason of their character
must not be the subject of countermeasures at all. Paragraph
76
ILC, fn. 13 above, 129 [5].
44
Countermeasures and Sanctions
2 deals with certain obligations relating in particular to the
maintenance of channels of communication between the two
States concerned, including machinery for the resolution of
their disputes.”77
The prohibition to resort to force is logical, due to the jus
cogens character of this rule. Moreover, all the evolution of the
law of reprisals/countermeasures was directed to limit recourse to
force.78 In the Corfu Channel case, the ICJ did not consider lawful
the military countermeasures of self-help taken by the British navy,
even though it mitigated this finding by Albania’s own violations of
the obligation of due diligence:
“The United Kingdom Agent (…) has further classified
‘Operation Retail’ among methods of self-protection or selfhelp. The Court cannot accept this defence either. Between
independent States, respect for territorial sovereignty is an
essential foundation of international relations. The Court
recognizes that the Albanian Government’s complete failure to
carry out its duties after the explosions, and the dilatory nature
of its diplomatic notes, are extenuating circumstances for the
action of the United Kingdom Government. But to ensure
respect for international law, of which it is the organ, the Court
must declare that the action of the British Navy constituted a
violation of Albanian sovereignty”.79
In the same vein, in Guyana v. Suriname, the Tribunal considered
that Suriname’s forceful reaction to Guyana’s explorations in
the disputed maritime area, which it held to be a violation of
the obligation of restrain of Article 83, paragraph 3 of UNCLOS,
amounted to a threat to the use of force and could not qualify as
lawful countermeasure:
77
78
79
Ibid., art. 50, 131 [2].
See above, §. 0
Corfu Channel Case (UK v Albania) (Merits) [1949] ICJ Rep 35.
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“It is a well established principle of international law that
countermeasures may not involve the use of force. This is
reflected in the ILC Draft Articles on State Responsibility at
Article 50(1)(a), which states that countermeasures shall not
affect ‘the obligation to refrain from the threat or use of force
as embodied in the Charter of the United Nations’. (…) Peaceful
means of addressing Guyana’s alleged breach of international
law with respect to exploratory drilling were available to
Suriname under the Convention. (…) As it involved the threat
of force, Suriname’s action against the C.E. Thornton cannot
have been a lawful countermeasure”.80
The inviolability of diplomatic agents, premises and archives is
equally excluded from the array of countermeasures an injured
State may adopt. The law on diplomatic and consular relations is
considered a self-contained regime, which provides in itself the lawful
responses that an injured State can adopt. It matters little if these
reactions are only responsive or punitive; as long as they stay within
the bounds of the diplomatic and consular regime, they are lawful
in international law. In the Tehran Hostages case, the ICJ underlined
the importance of preserving the exclusive character of the means
of self-help provided in the Vienna Conventions on Diplomatic
and Consular Relations, on which the delicate equilibrium and the
efficiency of the regime rested:
“The rules of diplomatic law, in short, constitute a self-contained
regime which, on the one hand, lays down the receiving State’s
obligations regarding the facilities, privileges and immunities
to be accorded to diplomatic missions and, on the other,
foresees their possible abuse by members if the mission and
specifies the means at the disposal of the receiving State to counter
80
The delimitation of the maritime boundary between Guyana and Suriname (Guyana
v. Suriname) (Arbitration tribunal) (Award) (2007) PCA ICGJ 370, § 446. For other
examples when the use of force was invoked as a right of self-help, see T. M. Franck,
op. cit. fn. 3, 131.
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Countermeasures and Sanctions
any such abuse. These means are, by their nature, entirely
efficacious, for unless the sending State recalls the member of
the mission objected to forthwith, the prospect of the almost
immediate loss of his privileges and immunities, because of
the withdrawal by the receiving State of his recognition as a
member of the mission, will in practice compel that person, in
his own interest, to depart at once”.81
The commentary to Article 50 ARSIWA specifies that this
exclusivity applies only to the unconditional obligations of
the diplomatic regime (“obligations which are designed to
guarantee the physical safety and inviolability (including the
jurisdictional immunity) of diplomatic agents, premises, archives
and documents in all circumstances, including armed conflict”).82
By contrast, privileges which the sending and the receiving State
recognize to each other on reciprocal grounds may be affected by
countermeasures, provided that the other conditions in ARSIWA
are complied with.
The relationship between countermeasures and disputesettlement proceedings is a more complex one. The possibility
to resort to arbitration or judicial settlement does not
constitute a bar to the adoption of countermeasures. As such,
countermeasures are not a last resort, but a most natural tool
for the implementation of State responsibility. By contrast,
judicial settlement remains “simply an alternative to the
direct and friendly settlement of such disputes between the
Parties”.83 Unsurprisingly therefore, the tentative by the
Special Rapporteur Arangio-Ruiz to introduce a compulsory
system of judicial settlement in case of disputes arising out
of the implementation of State responsibility, including by
81
United States Diplomatic and Consular Staff in Tehran, fn. 19 above [86] (emphasis
added).
82
ILC, fn. 13 above, art. 50, 133 [14].
83
Free Zones of Upper Savoy and the District of Gex, PCIJ Series A No. 22, at 13 [see also
Frontier Dispute (1986) ICJ Rep [46]].
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the adoption of countermeasures, was ill-omened.84 Article
50, paragraph 2 of ARSIWA provides more modestly that “[a]
State taking countermeasures is not relieved from fulfilling
its obligations: (a) Under any dispute settlement procedure
applicable between it and the responsible State.” The exact
consequences of this reservation-clause depend upon the
specific obligations which a treaty may create in terms of
dispute settlement. They may consist in prior negotiations, or a
tentative of conciliation, or be more sophisticated and complex,
like in the WTO regime.
The situation is different in case of ongoing judicial proceedings.
Article 50, paragraph 3 of ARSIWA provides that:
“Countermeasures may not be taken, and if already taken
must be suspended without undue delay if: (b) The dispute is
pending before a court or tribunal which has the authority to
make decisions binding on the parties”.
It is not sure that this provision codifies customary
international law, as practice and opinio juris may be lacking in this
respect. However, resort to countermeasures in these circumstances
generally triggers an aggravation of the dispute, which affects
not only the bilateral relationship between the offending and the
injured State, but also the mission of the judicial body. As the ICJ
held in the Tehran case:
“[A]n operation [the incursion into the territory of Iran made by
United States military units] undertaken in those circumstances
84
G. Arangio-Ruiz, “Counter-measures and Amicable Dispute Settlement Means in
the Implementation of State Responsibility: A Crucial Issue before the International
Law Commission” and B. Simma, “Counter-measures and Dispute Settlement:
A Plea for a Different Balance”, in European Journal of International Law, (1994) 51;
A. Pellet, “La codification du droit de la responsabilité internationale : Tâtonnements
et affrontements”, in L. Boisson de Chazournes and V. Gowlland-Debbas (eds.),
L’ordre juridique international, un système en quête d’équité et d’universalité, Liber
Amicorum Georges Abi-Saab (M. Nijhoff 2001) 297-298.
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Countermeasures and Sanctions
[during the proceedings which the Court had made an effort
to accelerate], from whatever motive, is of a kind calculated
to undermine respect for the judicial process in international
relations (…)”.85
In the same vein, in the Corfu Channel case, the Court rejected
United Kingdom’s justification according to which its military
intervention in waters under Albanian sovereignty was meant to
secure evidence for the proceedings before it:
“The Court cannot accept such a line of defence. The Court
can only regard the alleged right of intervention as the
manifestation of a policy of force, such as has, in the past, given
rise to most serious abuses and such as cannot, whatever be
the present defects in international organization, find a place
in international law. Intervention is perhaps still less admissible
in the particular form it would take here; for, from the nature of
things, it would be reserved for the most powerful States, and
might easily lead to perverting the administration of international
justice itself”.86
The unlawfulness of countermeasures, during judicial
proceedings dealing with the same underlying questions of
responsibility, may find further justification in the existence of
alternative means to reach the same result, namely in the power of
a competent tribunal to adopt provisional measures. According to
the ARISIWA Commentary,
“The rationale behind paragraph 3 is that once the parties
submit their dispute to such a court or tribunal for resolution,
the injured State may request it to order provisional measures to
protect its rights. Such a request, provided the court or tribunal
85
United States Diplomatic and Consular Staff in Tehran, fn. 19 above [93] (emphasis
added).
86
Corfu Channel, fn. 79 above, 35 (emphasis added).
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is available to hear it, will perform a function essentially
equivalent to that of countermeasures”.87
Furthermore, the adoption of countermeasures pendente lite
may constitute a violation of an order of provisional measures
which contains an obligation not to aggravate the dispute in its
dispositive part.88
This limitation of the possibility to resort to countermeasures
only exists if a tribunal is in a position to deal with the case.
“For these purposes a dispute is not pending before an ad hoc
tribunal established pursuant to a treaty until the tribunal is
actually constituted (…).” 89 However, there are situations when
this general consideration cannot apply. For instance, Article
290, paragraph 5 of UNCLOS provides that: “Pending the
constitution of an arbitral tribunal to which a dispute is being
submitted under this section, any court or tribunal agreed upon
the parties or, failing such agreement within two weeks from the
date of the request for provisional measures, the International
Tribunal for the Law of the Sea (…) may prescribe, modify or
revoke provisional measures…”. The special jurisdiction of
ITLOS to adopt provisional measures before the constitution
of an arbitral tribunal may be interpreted to deprive States of
their power to adopt countermeasures in parallel to judicial
proceedings introduced under Part XV of UNCLOS. It is also
87
ILC, fn. 13 above, art. 52, 136 [8]. In the same vein, the award in Air Service Agreement:
“The situation changes once the tribunal is in a position to act. To the extent that the
tribunal has the necessary means to achieve the objectives justifying the countermeasures, it must be admitted that the right of the Parties to initiate such measures
disappears. In other words, the power of a tribunal to decide on interim measures of
protection, regardless of whether this power is expressly mentioned or implied in
its statute (at least as the power to formulate recommendations to this effect), leads
to the disappearance of the power to initiate counter-measures and may lead to an
elimination of existing counter-measures to the extent that the tribunal so provides
as an interim measure of protection.” (Air Service Agreement, fn. 17 above [96]).
88
See for instance, Certain Activities carried out by Nicaragua in the Border Area (Costa
Rica v. Nicaragua) (Provisional measures) [2011] ICJ Rep [86].
89
ILC, fn. 13 above, art. 52, 136 [8].
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Countermeasures and Sanctions
within this context that must be resituated the Tribunal’s
argument in Guyana v Suriname, according to which the latter
could have resorted to UNCLOS part XV’s procedures instead of
sending a frigate to stop the oil exploration campaign:
“Peaceful means of addressing Guyana’s alleged breach of
international law with respect to exploratory drilling were
available to Suriname under the Convention. A State faced with
a such a dispute should resort to the compulsory procedures
provided for in Section 2 of Part XV of the Convention, which
provide among other things that, where the urgency of the
situation so requires, a State may request that ITLOS prescribe
provisional measures”.90
Section 4. Conditions Ratione Temporis
The temporal conditions of countermeasures are intrinsically
linked to their rationale, which is to induce the offending State to
comply with its international obligations.91 Thus, countermeasures
must in principle be temporary and reversible: “Countermeasures
shall, as far as possible, be taken in such a way as to permit the
resumption of the performance of the obligation in question.”
(Article 49-3 of ARSIWA). Having in mind this rationale, the
obligation to terminate countermeasures “as soon as the responsible
State has complied with its obligations”92 is also logical.
Since they amount to temporary non-compliance with
international obligations, countermeasures may be all the more
difficult to distinguish from the suspension of treaty obligations.
Despite a theoretical separation of treaty law and responsibility law,
common features remain. For instance, Article 72, paragraph 2 of
90
Delimitation of the maritime boundary between Guyana and Suriname, fn. 80 above,
[446].
91
See above p. 13 on the justification of countermeasures.
92
ILC, fn. 13 above, art. 53, 137.
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the VCLT provides that “[d]uring the period of the suspension the
parties shall refrain from acts tending to obstruct the resumption
of the operation of the treaty.” Of course, Article 72 of the VCLT
deals with the “consequences of the suspension of the operation of
a treaty” in whole, but States often claim only partial suspension
of some of the provisions,93 making it all the more difficult to
distinguish countermeasures from suspension. Yet, the regimes
remain distinct both in their conditions of applicability and in their
consequences.94
Section 5. Proportionality
Article 51 ARSIWA establishes a positive obligation of
proportionality: “Countermeasures must be commensurate
with the injury suffered, taking into account the gravity of the
internationally wrongful act and the rights in question.” In a
context where there is much concern as to the possible abuse of
countermeasures, the obligation of proportionality can be seen as a
“brake on escalating cycles of transactional violence”.95
The question is how proportionality can be measured. It is clearly
more than a prohibition of abuse. In the Air Services arbitration, it
was described as “[s]ome degree of equivalence with the alleged
breach.”96 Proportionality is thus an approximative gauge, which
cannot be quantified. In some instances, like violations of human
rights or of territorial sovereignty, it is in any case impossible to
provide for a quantitative criterion to evaluate the gravity of the
breach. But even when a quantitative evaluation is possible, like in
the Air Services case, the tribunal rejected “the tooth for a tooth,
N. Clarenc, La suspension des engagements internationaux (Dalloz 162) 45-50.
See above, p. 13.
95
T. Franck, “On Proportionality of Countermeasures in International Law”, 102 AJIL
715 (2008) at 715.
96
Air Service Agreement, fn. 17 above, 416 [83].
93
94
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eye for an eye” approach97 and held the relevant criterion to be
the “gravity of the internationally wrongful act and the rights in
question”.98
Section 6. Procedural Requirements
Article 52 (Conditions relating to resort to countermeasures)
sets out important procedural constraints upon an injured State
resorting to countermeasures:
“1. Before taking countermeasures, an injured State shall:
(a) Call on the responsible State, in accordance with article
43, to fulfil its obligations under Part Two;
(b) Notify the responsible State of any decision to take
countermeasures and offer to negotiate with that State.
2. Notwithstanding paragraph 1 (b), the injured State may take
such urgent countermeasures as are necessary to preserve its
rights”.
These two cumulative requirements contain therefore
a sommation (call for cessation) and a prior notification of
countermeasures. It is only in urgent situations that an injured
State is liberated from these procedural requirements. According
97
“[I]t is essential, in a dispute between States, to take into account not only
the injuries suffered by the companies concerned but also the importance of the
questions of principle arising from the alleged breach. The Tribunal thinks that
it will not suffice, in the present case, to compare the losses suffered by Pan Am
on account of the suspension of the projected services with the losses which the
French companies would have suffered as a result of the counter-measures; it will
also be necessary to take into account the importance of the positions of principle
which were taken when the French authorities prohibited changes of gauge in third
countries.” (Ibid.)
98
Ibid. For an assessment of proportionality by WTO panels, see G. Cook, “A Digest
of WTO Jurisprudence on Public International Law Concepts and Principles (CUP 2015),
101-104.
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to ARSIWA Commentary, this provision is merely a codification
of customary rules: “This requirement (sometimes referred to as
‘sommation’) was stressed both by the Tribunal in the Air Services
arbitration and by the International Court in the GabčíkovoNagymaros Project case. It also appears to reflect a general practice.”99
But the formulation of these two requirements is less
mundane than the commentary suggests. Indeed, they impose on
States a duty to justify their unilateral actions, to motivate their
unilateral decisions, even summarily by reference to international
law. In principle, such requirements are particularly effective for
counter-balancing the power of self-appreciation of States and for
preventing abuse of countermeasures. They are also a powerful tool
for pushing States to dialogue.
99
ILC, fn. 13 above, art. 52, 136 [3].
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CHAPTER 3:
Countermeasures in the General Interest:
Where Do We Stand?
Section 1. Distinction between Invocation of
Responsibility and Countermeasures Based on the
Concept of Injured State
ARSIWA draws a distinction between standing to invoke
responsibility and entitlement to adopt countermeasures by noninjured State, as being two distinct forms of implementation of
responsibility. Invocation is defined as “taking measures of a
relatively formal character, for example, the raising or presentation
of a claim against another State or the commencement of
proceedings before an international court or tribunal.”100 “Central
to the invocation of responsibility is the concept of the injured
State. This is the State whose individual right has been denied or
impaired by the internationally wrongful act or which has otherwise
been particularly affected by that act.”101 This concept is introduced
in article 42, which provides:
“A State is entitled as an injured State to invoke the responsibility
of another State if the obligation breached is owed to:
(a) That State individually; or
(b) A group of States including that State, or the international
community as a whole, and the breach of the obligation:
(i) Specially affects that State; or
100
101
Ibid., art. 42, 117 [2].
Ibid., 116 [2].
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(ii) Is of such a character as radically to change the position
of all the other States to which the obligation is owed with
respect to the further performance of the obligation”.
Leaving aside the purely bilateral relations (which can be
established within the framework of a bilateral treaty, but also of a
multilateral one or even under customary international law — e.g.:
diplomatic relations), a State may qualify as injured even in case
of obligations owed erga omnes, provided that it is “affected by the
breach in a way which distinguishes it from the generality of other
States to which the obligation is owed.”102 A text-book example is
the pollution on high seas, which affects differently the coastal
States. Finally, Article 42, paragraph b (ii) concerns the category of
integral obligations, “whose performance is effectively conditioned
upon and requires the performance of each”103 of the other parties.
Logically, violations by one State have immediate consequences on
the position of all the others (e.g.: the Antarctic Treaty).
Article 48, paragraph 1 (Invocation of responsibility by a State
other than an injured State) extends to States other than the injured
State the standing to invoke responsibility for the protection of a
“collective interest” or in case of breaches of “obligation owed to the
international community as a whole”. There is no doubt that this
broad standing has been confirmed by the latest case-law, at least
in relation to obligations erga omnes partes based on multilateral
treaties. A clear confirmation came from the ICJ’s decision in the
Hissène Habré case:
“The States parties to the Convention have a common interest
to ensure, in view of their shared values, that acts of torture
are prevented and that, if they occur, their authors do not
enjoy impunity. (…) All the other States parties have a common
interest in compliance with these obligations by the State in
102
103
56
Ibid., art. 42, 119 [12].
Ibid., art. 42, 119 [13].
Countermeasures and Sanctions
whose territory the alleged offender is present. That common
interest implies that the obligations in question are owed by
any State party to all the other States parties to the Convention.
All the States parties ‘have a legal interest’ in the protection
of the rights involved (…). These obligations may be defined as
‘obligations erga omnes partes’ in the sense that each State party
has an interest in compliance with them in any given case. (…)
The common interest in compliance with the relevant obligations
under the Convention against Torture implies the entitlement of each
State party to the Convention to make a claim concerning the cessation
of an alleged breach by another State party. If a special interest
were required for that purpose, in many cases no State would be in
the position to make such a claim. It follows that any State party
to the Convention may invoke the responsibility of another State
party with a view to ascertaining the alleged failure to comply with
its obligations erga omnes partes, such as those under Article 6,
paragraph 2, and Article 7, paragraph 1, of the Convention, and to
bring that failure to an end”.104
However, these judicial developments do not resolve the question
of entitlement for non-injured States to adopt countermeasures.
It is hard to find in ARSIWA a basis of entitlement: Article 48,
paragraph 2 restricts the spectrum of action of the non-injured
State to claims of cessation and performance of reparation. Notably,
Article 48 does not mention the possibility to take countermeasures
in the collective interest.
104
Questions relating to the Obligation to Prosecute or Extradite (Belgium v. Senegal)
(Merits) [2012] ICJ Rep [68]-[69] (emphasis added). For a confirmation of standing to
invoke responsibility in case of violations of obligations erga omnes partes, see ICJ,
Application of the Convention on the Prevention and Punishment of the Crime of Genocide
(The Gambia v. Myanmar) (Provisional Measures) [2020] ICJ Rep [17] at §§ 41-42. But
the Court has not yet had the occasion to confirm this standing in case of obligations
erga omnes (or jus cogens), when the Applicant does not rely on a treaty-relationship
with the Defendant (see Obligations concerning Negotiations relating to Cessation of the
Nuclear Arms Race and to Nuclear Disarmament (Preliminary Objections) (Declaration
Xue) [2016] ICJ Rep [1031]-[1032] at § 8.
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“Any State entitled to invoke responsibility under paragraph 1
may claim from the responsible State:
(a) Cessation of the internationally wrongful act, and
assurances and guarantees of non-repetition in accordance
with article 30; and
(b) Performance of the obligation of reparation in accordance
with the preceding articles, in the interest of the injured
State or of the beneficiaries of the obligation breached”.
Article 54 (Measures taken by States other than an injured
State) cannot constitute either a basis of entitlement for noninjured States to adopt countermeasures:
“This chapter does not prejudice the right of any State, entitled
under article 48, paragraph 1 to invoke the responsibility of
another State, to take lawful measures against that State to ensure
cessation of the breach and reparation in the interest of the
injured State or of the beneficiaries of the obligation breached”.
This safeguard clause mentions indeed the possibility for third
States to “take lawful measures” in reaction, but precisely because
they are lawful, such measures could not qualify as countermeasures
within the meaning given to this concept in ARSIWA.
Since the non-injured States enjoy anyway the possibility to
adopt lawful measures, one may wonder what is the effet utile of this
provision. The drafting of Article 54 cannot be understood without
knowing its drafting history. In 2000, the Special Rapporteur James
Crawford proposed a draft article 54 which gave a double entitlement
to non-injured States to adopt countermeasures:
“1. Any State entitled under article 49, paragraph 1, to invoke the
responsibility of a State may take countermeasures at the request
and on behalf of any State injured by the breach, to the extent that
that State may itself take countermeasures under this chapter.
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2. In the cases referred to in article 41, any State may take
countermeasures, in accordance with the present chapter in
the interest of the beneficiaries of the obligation breached
3. Where more than one State takes countermeasures, the States
concerned shall cooperate in order to ensure that the conditions
laid down by this chapter for the taking of countermeasures are
fulfilled”.105
This entitlement would have applied:
1. at the request of the injured-State, on account that
“[t]here seems to be no reason why a state injured by a breach of
a multilateral obligation should be left alone to seek redress for
the breach. Bilateral countermeasures strongly favour states that
are more powerful; if weaker states are forced to resort to bilateral
countermeasures without support of interested third states, serious
breaches may go unremedied”.106
2. to all States in case of violations of the right to selfdetermination or human rights and in the interest of the
beneficiaries of these obligations, on account that no injured State
could be defined in these circumstances.107
Draft Article 54 in its 2000 version was welcome by progressive
academia108 and heavily criticized by States109. The ILC was
consequently caught in a dilemma: “deleting the provision on
ILC, Report of the International Law Commission on the work of its fifty-second
session (1 May–9 June and 10 July–18 August 2000), Yearbook of the International
Law Commission, vol. 2, 2000, A/55/10, art. 54, 70-71.
106
J. Crawford, State Responsibility: The General Part, op. cit. fn. 24, 704.
107
L.-A. Sicilianos, “The Implementation of International Responsibility. Ch.80
Countermeasures”, in The Law of international Responsibility, op. cit. fn. 18, 1143-1144.
108
Ibid. 1143-1144; A. Pellet, “Les articles de la CDI sur la responsabilité de l’Etat
pour fait internationalement illicite. Suite — et fin?”, Annuaire français de droit
international 48, 2002, 20, § 19.
109
ILC, Fourth report on State responsibility, by Mr. James Crawford, Special Rapporteur,
A/CN.4/517 and Add.1, 2001, 18 ; L-A. Sicilianos, op. cit. fn. 107, 1140-1141.
105
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collective countermeasures altogether would leave the impression
that countermeasures were restricted to unilateral measures
by injured States (…). [But as such], the draft provision was too
controversial to survive. (…) Ultimately (…) the ILC replaced the
draft provision with a saving clause. (…) Thus the articles in their
final form do not regulate countermeasures by states other than an
injured state. Article 54 (…) is a compromise intended to reserve
the position and leave the resolution of the matter for further
developments in international law and practice.”110
The reason provided by the ILC for stepping back from the 2000
draft relied on the alleged scarcity of State practice, an assessment
considered to be incorrect by some authors.111 To quote Federica
Paddeu:
“Contrary to the ASR’s view, these works conclude that the
practice is neither limited, nor embryonic, nor selective, and
they endorse the recognition at customary law of the right of
States other than the injured State to resort to countermeasures
in the event of a serious breach of an obligation owed to the
international community as a whole”.112
This being said, the examples given by academia do not
necessarily amount to countermeasures, simply because they are
not unlawful acts, but measures of retorsion which do not violate
international law (for instance: expulsion of diplomats, bilateral
military cooperation, arms embargoes etc…), unless there are
special rights protected under special treaty regimes. This being
said, the rise in the past two decades of unilateral enforcement
through restrictive measures adopted by non-injured States and
J. Crawford, State Responsibility: The General Part, op. cit. fn. 24, 705-706 (emphasis
added).
111
L-A. Sicilianos, op. cit. fn. 107, 1145-1148; M. Dawidowicz, Third-Party
Countermeasures in International Law (CUP 2017), pointing to numerous examples
of State practice.
112
F.I. Paddeu, op. cit. fn. 10, § 40.
110
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international organizations does raise the question of a possible
evolution of the law since 2001.113
Section 2. Articulation with other Consequences of
Breaches of Jus Cogens (Peremptory Norms)
It should be recalled that Article 41, paragraph 1 of ARSIWA
provides that, in case of grave breaches of peremptory norms, all
States have a duty to cooperate towards cessation of the unlawful
act114 and for two distinct duties of non-recognition and of nonassistance: “No State shall recognize as lawful a situated created by
a serious breach (…), nor render aid or assistance in maintaining
that situation”. One may wonder whether measures adopted as
retaliation to breaches of peremptory norms could be analysed
as fulfilment of special obligations incumbent under Article 41 of
ARSIWA.
A duty of non-recognition implies that States “refrain from acts
and actions, from taking attitudes that imply the recognition of
the acts offending against peremptory norms.”115 The archetypal
example the duty of non-recognition applies to territorial
acquisitions resulting from violation of the prohibition of the use of
force or of the right to self-determination. The Advisory Opinion of
the ICJ in the Namibia case shows the interplay between the duty of
non-recognition and the binding decisions of the Security Council
which state the unlawfulness of territorial occupation:
“A binding determination made by a competent organ of the
United Nations to the effect that a situation is illegal cannot
remain without consequence. (…)
See above, pp. 41-44.
“States shall cooperate to put an end through lawful means any serious breach
within the meaning of article 40”.
113
114
115
A. Orakhelashvili, “The Idea of European International Law”, European Journal of
International Law 17 (2), 2006, 282.
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The member States of the United Nations are (…) under
obligation to recognize the illegality and invalidity of South Africa’s
continued presence in Namibia. They are also under obligation
to refrain from lending any support or any form of assistance to
South Africa with reference to its occupation of Namibia, subject to
paragraph 125 below”.116
The Court derived the obligation of non-recognition from the
binding character of the Security Council resolutions, rather than
from the peremptory value of the norm violated, in particular the
right to self-determination. General international law, as reflected
by Article 41 of ARSIWA, has developed in the direction of an
extension of the obligation of non-recognition in cases of violations
of peremptory norms. However, the field remains largely unexplored,
for beyond the assertion of a general principle of recognition, its
particular consequences remain largely undetermined.
Indeed, the obligation of non-recognition cannot amount only
to an obligation not to adopt a formal position of recognition.117 If
it has to have any meaning, if must equally address the practical
consequences, which are not necessarily preceded by an act of
formal recognition. In Namibia’s case, the Security Council had
called “upon all States, particularly those which have economic and
other interests in Namibia, to refrain from any dealings with the
Government of South Africa which are inconsistent with operative
paragraph 2 of this resolution.”118 In its Advisory Opinion, the
Court detailed further concrete consequences, which it derived not
only from the Security Council resolution, but also from general
116
Legal Consequences for States of the Continued Presence of South Africa in Namibia
(South West Africa) (Advisory opinion) [1971] ICJ Rep § 117 and 119 (emphasis added).
117
The Proclamation on Recognizing the Golan Heights as Part of the State of Israël,
signed by US President Trump on 25 March 2019 is an example of a violation of
the obligation of non-recognition by a declaratory act <https://trumpwhitehouse.
archives.gov/presidential-actions/proclamation-recognizing-golan-heights-partstate-israel//>.
118
UNSC Res 276 (1970), § 5.
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international law. According to the Court, the ways of implementing
the duty of non-recognition are broad-ranging:
“122. [M]ember States are under obligation to abstain from entering
into treaty relations with South Africa in all cases in which the
Government of South Africa purports to act on behalf of or concerning
Namibia. With respect to existing bilateral treaties, member States
must abstain from invoking or applying those treaties or provisions
of treaties concluded by South Africa on behalf of or concerning
Namibia which involve active intergovernmental co-operation.
With respect to multilateral treaties, however, the same rule
cannot be applied to certain general conventions such as those
of a humanitarian character, the non-performance of which may
adversely affect the people of Namibia. It will be for the competent
international organs to take specific measures in this respect.
123. Member States, in compliance with the duty of non-recognition
imposed by paragraphs 2 and 5 of resolution 276 (1970), are under
obligation to abstain from sending diplomatic or special missions
to South Africa including in their jurisdiction the Territory of
Namibia, to abstain from sending consular agents to Namibia, and
to withdraw any such agents already there. They should also make
it clear to the South African authorities that the maintenance of
diplomatic or consular relations with South Africa does not imply
any recognition of its authority with regard to Namibia.
124. The restraints which are implicit in the non-recognition of
South Africa’s presence in Namibia and the explicit provisions
of paragraph 5 of resolution 276 (1970) impose upon member
States the obligation to abstain from entering into economic and
other forms of relationship or dealings with South Africa on behalf
of or concerning Namibia which may entrench its authority over
the Territory”.119
Legal Consequences for States of the Continued Presence of South Africa in Namibia,
above fn. 116, [122]-[124] (emphasis added).
119
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According to these paragraphs, the duty of non-recognition
implies not only a duty to abstain, but it could involve a positive
conduct consisting of not fulfilling certain treaty obligations. This
conduct would a priori be unlawful in international law, were it not
for the application of the duty of non-recognition.
In the more recent Advisory Opinion in the Chagos case, the
ICJ was more cautious in asserting obligations for third States. The
Court recognized that “respect for the right to self-determination
is an obligation erga omnes, [and] all States have a legal interest in
protecting that right (…).”120 In relation to third States, it held that:
“while it is for the General Assembly to pronounce on the modalities
required to ensure the completion of the decolonization of Mauritius,
all Member States must co-operate with the United Nations to put
those modalities into effect.”121 The ICJ seems to have fallen short
from concluding that there was a duty of non-recognition.122 The
resolution subsequently adopted by the Generally Assembly specifies
that the duty to cooperate implies an obligation not to recognize, but
commends this duty only to the UN, its specialized agencies and all
other international, regional and intergovernmental organizations.
By contrast, States are only called upon to cooperate:
“5. Calls upon all Member States to cooperate with the United
Nations to ensure the completion of the decolonization of
Mauritius as rapidly as possible, and to refrain from any action
that will impede or delay the completion of the process of
decolonization of Mauritius in accordance with the advisory
opinion of the Court and the present resolution;
6. Calls upon the United Nations and all its specialized agencies
to recognize that the Chagos Archipelago forms an integral part
120
Legal Consequences of the Separation of the Chagos Archipelago from Mauritius in
1965 (Advisory opinion) [2019] ICJ Legal Consequences of the Separation of the Chagos
Archipelago from Mauritius in 1965 (Advisory opinion) [2019] ICJ [180].
121
Ibid.
122
Ibid., [180]-[182].
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of the territory of Mauritius, to support the decolonization of
Mauritius as rapidly as possible, and to refrain from impeding
that process by recognizing, or giving effect to any measure taken
by or on behalf of, the ‘British Indian Ocean Territory’;
7.Calls upon all other international,regional and intergovernmental
organizations, including those established by treaty, to recognize
that the Chagos Archipelago forms an integral part of the territory
of Mauritius, to support the decolonization of Mauritius as
rapidly as possible, and to refrain from impeding that process by
recognizing, or giving effect to any measure taken by or on behalf
of, the ‘British Indian Ocean Territory’”.123
This resolution on Chagos contrasts with the one condemning
the alteration of the status of Crimea:
“5. Underscores that the referendum held in the Autonomous
Republic of Crimea and the city of Sevastopol on 16 March 2014,
having no validity, cannot form the basis for any alteration of
the status of the Autonomous Republic of Crimea or of the city
of Sevastopol;
6. Calls upon all States, international organizations and
specialized agencies not to recognize any alteration of the
status of the Autonomous Republic of Crimea and the city of
Sevastopol on the basis of the above-mentioned referendum
and to refrain from any action or dealing that might be interpreted
as recognizing any such altered status”.124
123
A/RES/73/295, 22 May 2019 (Advisory opinion of the International Court of
Justice on the legal consequences of the separation of the Chagos Archipelago from
Mauritius in 1965).
124
A/RES/68/262, 27 March 2014 (Territorial integrity of Ukraine) (emphasis added).
The resolution was adopted by 100 votes to 11, with 58 abstentions, see General
Assembly of United Nations, Meeting Record about Draft resolution (A/68/L.39), A/68/
PV.80, 27 March 2014). Support for the subsequent resolutions on the same topic
somewhat lowered. See for example A/RES/73/263 of 22 December 2018 (Situation of
human rights in the Autonomous Republic of Crimea and the city of Sevastopol, Ukraine).
The resolution was adopted by 65 votes to 27, with 70 abstentions.
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Some of the restrictive measures adopted by EU against Russia
(such as embargoes of imports and exports from and towards
Crimea and Sebastopol) indeed refer to non-recognition, identified
however not as an obligation, but as a “policy”:
“As part of the Union’s non-recognition policy of the illegal
annexation of Crimea and Sevastopol, the Council regards the
construction of the Kerch Bridge as a further action undermining
the territorial integrity, sovereignty and independence of
Ukraine”.125
The addressees of the obligations of non-recognition and
cooperation to put an end to jus cogens violations are mainly States
and international organizations with a political mandate. To put it
differently, international judicial organs do not consider themselves
bound by these obligations, as this may interfere with their mission
to assess on an objective and impartial basis the claims of the
parties.126
Council Decision (CFSP) 2018/1085 amending Decision 2014/145/CFSP concerning
restrictive measures in respect of actions undermining or threatening the territorial
integrity, sovereignty and independence of Ukraine, 30 July 2018, Official Journal of
the European Union, L. 194/147, 31 July 2018. See also Council Regulation n° 692/2014.
126
Dispute concerning delimitation of the maritime boundary between Mauritius and
Maldives in the Indian Ocean (Mauritius/Maldives) supra fn. 43, at § 230.
125
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CHAPTER 4:
Countermeasures and Sanctions
Section 1. Terminological and Conceptual Conflations
Even if Roberto Ago had initially used the term of “sanctions”
instead of countermeasures,127 in the final version of its work, the ILC
deliberately reserved this term to designate institutional reactions to
violations of international law, that is “measures taken in accordance
with the constituent instrument of some international organization.”128
According to Denis Alland, “it is often the case that measures decided
by an international organization escape the subjectivity of the lone
reacting State, for they are decided within the framework of a system
more or less centralized, which is precisely the element that justifies
them being distinguished from countermeasures.”129
The prototypal sanctions remain those adopted by the Security
Council under Chapter VII of the Charter. They can encompass a
See for example ILC, Addendum — Eighth report on State responsibility by
Mr. Roberto Ago, Special Rapporteur — the internationally wrongful act of the State,
source of international responsibility (part 1), Yearbook of the International Law
Commission, vol. II (1), 1980, A/CN.4/318/Add.5-7, 43, § 63.
128
ILC, fn. 13 above, art. 22, 75 [3].
129
D. Alland, op. cit. fn. 18, 1135; see also G. Abi-Saab : “Cependant, dans le cadre de
l’article 41, le droit ne saisit et ne mobilise ces mesures à ses propres fins qu’en tant que
‘mesures collectives’. C’est le caractère collectif, ou l’agrégation de ces mesures, plutôt que
leur nature intrinsèque, qui les rend ‘productives’ ou ‘efficaces’ en tant que ‘sanction’;
car elles servent — de par ce caractère même — à l’isolement de l’Etat cible et à sa mise
au ban de la communauté internationale ; ce que ces mesures, prises individuellement,
ne peuvent ni signifier ni produire. En d’autres termes, le passage du niveau individuel
au niveau collectif, dans le cadre d’une décision du Conseil de sécurité (ou d’une
recommandation de l’Assemblée générale), opère une transformation qualitative dans la
nature de ces mesures, juridiquement parlant. C’est seulement à ce niveau qu’elles sont
saisies par le droit, car il n’y a aucune nécessité logique pour que ce qui intéresse le droit
en tant que phénomène collectif, l’intéresse aussi en tant que phénomène individuel. ” (op.
cit. fn. 11, 295-296).
127
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very wide range of acts, including the use of armed force. The
European Union can also adopt sanctions against its member States.
Being an integrated and hierarchical legal system, most of the EU
sanction-mechanisms correspond to the principle of separation
of functions (they are not adopted by the injured State, but by a
central organ and they are prone to judicial control, in particular
through the infringement procedure). Judicial enforcement did not
however entirely supplant the political mechanisms of sanctions.
For instance, the procedure of Article 7 of TEU was envisaged
as a mechanism to deter member States from backsliding on
fundamental European values, which include “human dignity,
freedom, democracy, equality, the rule of law and respect for human
rights, including the rights of persons belonging to minorities.” The
mechanism involves the Commission, the Parliament and 1/3 of
Member States as agents for proposal and the EU Council as the
deciding authority. The spectrum of sanctions at the disposal of the
EU Council is broad: “suspend certain of the rights deriving from
the application of the Treaties to the Member State in question,
including the voting rights” (Article 7, paragraph 3 of TEU). In 2018,
the European Parliament voted to trigger the application of this
provision against Poland and Hungary.130
Section 2. An Indefinable Concept, an Indeterminate
Regime
Sanctions adopted by international organizations are outside the
scope of ARSIWA. According to the ARSIWA Commentary:
“It is vital (…) to distinguish between individual measures,
whether taken by one State or by a group of States each acting
European Parliament resolution of 1 March 2018 on the Commission’s decision
to activate Article 7(1) TEU as regards the situation in Poland; European Parliament
resolution of 12 September 2018 on a proposal calling on the Council to determine,
pursuant to Article 7(1) of the Treaty on European Union, the existence of a clear risk
of a serious breach by Hungary of the values on which the Union is founded.
130
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in its individual capacity and through its own organs on the
one hand, and institutional reactions in the framework of
international organisations on the other. The latter situation,
for example where it occurs under the authority of Chapter VII
of the United Nations Charter, is not covered by the Articles.
More generally the Articles do not cover the case were action is
taken by an international organization, even though the member
States may direct or control its conduct”.131
It is questionable whether such broad exclusion of all
measures adopted by international organizations is warranted,
only on account that such measures were collectively adopted.
One may wonder in particular whether measures adopted by an
international organization against third States (and not against
its members), pursuant not to its constituent instrument, but to
general international law, can be entirely excluded from the scope
ARSIWA. These measures are unilateral in nature, even if they were
adopted through a process of collective decision-making. Of course,
ARSIWA only deals with the responsibility of States and from this
point of view, their exclusion is understandable. However, sanctions
adopted by international organizations are generally followed by
the adoption of national measures of implementation adopted by
States. The legality of such domestic measures may be contested by
the State target.
Institutional sanctions against non-member States are also
excluded from the operation of the ILC’s project on Responsibility
of International Organizations (2011): “The present draft articles
do not examine the conditions for countermeasures to be lawful
when they are taken by an injured international organization
against a responsible State.”132 This exclusion was justified by the
fact that the draft only dealt with the responsibility of international
ILC, fn. 13 above, art. 54, 137 [2] (emphasis added).
ILC, Draft articles on the responsibility of international organizations, with
commentaries, 2011, A/66/10, art. 22, 72 [2].
131
132
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organizations and countermeasures directed against them. This
being said and quite confusingly, “[p]aragraphs 2 and 3 [of Article
22] address the question whether countermeasures may be taken
by an injured international organization against its members, whether
States or international organizations, when they are internationally
responsible towards the former organization. [However, according
to the ILC] Sanctions, which an organization may be entitled to
adopt against its members according to its rules, are per se lawful
measures and cannot be assimilated to countermeasures.” The
cumulative effect of the exclusions of institutional reactions from
the 2001 and the 2011 projects is that “sanctions” adopted by
international organizations, and not directed against their members,
are entirely in a legal limbo.
The latest practice adds much to the confusion. The term
“sanctions” is now extensively and abusively used to designate all
types of coercive measures, adopted by a State or by an international
organization, either pursuant to its constitutional treaty or without any
specified legal basis in international law. This abusive terminological
conflation appears as inappropriate, since it gives to unilateral
measures the anoint of the legal authority and they seem to
presume that a State is entitled to adopt such measures.133 However,
this question is highly debated.
Some authors proposed to acknowledge this extensive use in
practice and analyse these measures as a distinctive category of
“peaceful unilateral coercive measures adopted by a non-directly
injured State (or IO) in defence of the public interest and not
otherwise justified under international law”.134 Of course, these
proposals attempt to revive the countermeasures in the collective
interest, which were left aside by the ILC in 2001135. This being
133
On the issue of “sanctions” in international law, see G. Abi-Saab, op. cit. fn. 11,
116-118; A. Miron, A. Pellet, “Sanctions” (MPEPIL 2011).
134
A. Pellet, “Unilateral Sanctions and International Law”, Yearbook of Institute of
International Law — Tallinn Session — Volume 76 (Pedone 2015) 726 (emphasis added).
135
ILC, fn. 13 above, art. 54, 137 [2].
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said, all unilateral coercive measures do not necessarily constitute
reactions to violations of peremptory norms, motivated by the
defense of a collective interest. On the contrary, some of the most
resounding unilateral coercive measures (like US sanctions against
Iran) were mainly tools to further purely national interests.
The table below is an attempt to draw a comparison between
countermeasures and unilateral coercive measures. However, it is
necessarily tentative, for the practice of unilateral coercive measures
remains chaotic and hardly regulated, notwithstanding the fact that
they have become a major tool of international relations in the last
two decades. This practice is particularly difficult to assess since
the statistical data available mixes the sanctions adopted pursuant
to Security Council resolutions, those targeting the same countries
but going beyond the measures adopted by the Security Council,
targeted measures adopted on account of violations of multilateral
conventions such of those against corruption and coercive measures
which do not rely on any of the foundations identified above (as for
instance, US sanctions against Iran or EU sanctions against Russia).
Countermeasures
1° unilateral
2° reactive to a prior violation of international law
3° law-enforcement
4° regulated ILC
5° a priori unlawful, but circumstance precluding
wrongfulness
6° coercive or not
Unilateral coercive measures
(improperly called “sanctions”)
1° unilateral or institutional
2° reactive, punitive or conservative
3° law/will or peace-enforcement
4° largely anarchic
5° lawful or unlawful
6° coercive
The phenomenon is so complex that a new legal discipline has
developed in recent years: compliance aims to support companies
in ensuring that their practices are in conformity with the various
“sanctions” regimes. Compliance is now taught in master degrees
and big law firms and multinational companies have specific
departments devoted to it. Regrettably however, these programmes
make no distinction between sanctions decided by the Security
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Alina Miron
Council and unilateral measures. Compliance has thus become
an effective tool for implementing coercive measures, including
unilateral measures, since the latter are treated in the same way as
institutional sanctions.
Section 3. The Lawfulness of Unilateral Coercive
Measures: a Grey Zone
The issue of the lawfulness of unilateral coercive measures
cannot be easily solved. If the question of States’ entitlement to
adopt such measures as reactions to violations of international
law was resolved in a positive matter, their liceity would be hard
to challenge (provided of course that the conditions set out
for countermeasures are respected). But for the moment, this
entitlement is left in abeyance.
Can unilateral coercive measures amount to violations of
international law? If such measures can qualify as violations of
specific treaty obligations, the question is more easily solved. And
it is on this basis that most challenges against unilateral coercive
measures were made.136
But beyond violations of specific treaty obligations, could
unilateral coercive measures amount also to violations of general
international law?137 According to Article 18 of ARSIWA (Coercion
of another State),
“A State which coerces another State to commit an act is
internationally responsible for that act if:
136
WTO, United States — The Cuban Liberty and Democratic Solidarity Act (US — Helms
Burton), Request for consultations, WT/DS38/1, 3 May 1996; Certain Iranian Assets
(Islamic Republic of Iran v. United States of America) (Preliminary Objections) [2019]
ICJ [33].
137
For further analysis, see A. Miron, “Rapport général”, Extraterritorialités et droit
international. SFDI Colloque d’Angers, to be published in 2020.
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(a) The act would, but for the coercion, be an internationally
wrongful act of the coerced State; and
(b) The coercing State does so with knowledge of the
circumstances of the act”.
But coercion does not have an unequivocal definition in
international law. According to the famous dictum of the PCIJ
in the Lotus case, “the first and foremost restriction imposed by
international law upon a State is that — failing the existence of
a permissive rule to the contrary — it may not exercise its power
in any form in the territory of another State.”138 This dictum is
generally subject to a restrictive interpretation, according to which
by coercion it is understood the exercise of any form of physical
constraint in foreign territory. However, this is not necessarily
correct, and the terms of the judgment are broader — the exercise
of any form of power in foreign territory — is clearly a concept
more encompassing than physical coercion. Thus, any act, even
indirectly coercive, should be held as prohibited if it is the exercise
of a prerogative of public authority in foreign territory. The draft
resolution proposed by the Special Rapporteur François Rigaux
for the Berlin session (1999) of the Institut de droit international
insists that:
“The notion of coercion cannot be limited to material acts of
physical coercion (...). The location criterion that correctly
applies to such acts is powerless to capture other forms of
coercion, such as the threat of the use of force, deprivation of
property or economic sanctions. The mere statement of such
threats, which may only be carried out on the territory of the
State of the authorities from which they originate, is likely
to exert a form of constraint on the conduct of their recipients
138
The S.S. “Lotus” (French Republic v. Turkish Republic) (Merits) [1927] PCIJ 18.
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anywhere, a constraint which, although indirect, is nevertheless
certain”.139
In the same vein, the ILC, in its commentary of Article 18
ARSIWA, considers that coercion goes beyond unlawful use of force
or any other form of physical coercion in foreign territory;
“Though coercion for the purpose of article 18 is narrowly
defined, it is not limited to unlawful coercion. (…) However,
coercion could possibly take other forms, e.g. serious economic
pressure, provided that it is such as to deprive the coerced
State of any possibility of conforming with the obligation
breached”.140
Even if the commentary does not consider serious economic
pressure to be unlawful as such, it does remind that “[a]s a practical
matter, most cases of coercion meeting the requirements of the
article will be unlawful, e.g., because they involve a threat or use
of force contrary to the Charter of the United Nations, or because
they involve intervention, i.e. coercive interference, in the affairs of
another State.”141 However, the conditions under which unilateral
coercive measures amount to a violation of the principle of nonintervention are subject to discussion. Acts of economic pressure
were not considered by the ICJ to amount to unlawful intervention:
“the Court (…) is unable to regard such action on the economic plane
[cessation of economic aid, reduction of quotas of sugar import
139
F. Rigaux, “Extraterritorial Jurisdiction of States”, Yearbook of the Institute of
International Law [1999] 563 (emphasis added). Our translation from the original:
“La notion de contrainte ne saurait être limitée aux actes matériels de coercition
physique exercés (…). Le critère de localisation qui s’applique correctement à de tels
actes est impuissant à saisir d’autres formes de contrainte, telles que la menace du
recours à la force, de la privation d’un bien ou de sanctions économiques. Le seul
énoncé de telles menaces, qui ne sauraient être mises à exécution que sur le territoire
de l’Etat des autorités duquel elles émanent, est de nature à exercer une forme
de contrainte sur le comportement de leurs destinataires en quelque lieu que ce soit,
contrainte qui, pour être indirecte, n’en est pas moins certaine.”
140
ILC, fn. 13 above, art. 18, 70 [3].
141
Ibid., Art. 18, 70 [3] (emphasis added).
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Countermeasures and Sanctions
and trade embargo] as is here complained of as a breach of the
customary-law principle of non-intervention.” 142
At the same time, the Court insisted that a violation of the
principle of non-intervention does not only result from the use of
force:
“A prohibited intervention must accordingly be one bearing on
matters in which each State is permitted, by the principle of
State sovereignty, to decide freely. One of these is the choice
of a political, economic, social and cultural system, and the
formulation of foreign policy. Intervention is wrongful when it
uses methods of coercion in regard to such choices, which must
remain free ones”.143
It is therefore the finality of the measures of coercion which
is decisive for the appreciation of their lawfulness with regards to
the principle of non-intervention. If that finality aims at preventing
a State from making choices which are quintessential to its
sovereignty, then unilateral restrictive measures may be declared
unlawful. To put it in simplistic terms, economic pressure may be
permissible if it aims at a change of some specific policies, not if it
aims at a change of the political regime. A similar idea is contained
in the argument of abuse of rights: “their use in an ‘inappropriate
or disproportionate’ manner as a pretext for undeclared purposes
would reveal the bad faith of their author and would fall under the
prohibition of abuse of rights or intervention.”144 Interestingly, in the
Rosneft case, the ECJ considered whether the adoption of restrictive
measures by EU against Russia could amount to a misuse of powers,
which would be constituted if “the restrictive measures at issue
Military and Paramilitary Activities in and against Nicaragua, fn. 20 above, [245];
See also J-M. Thouvenin, “Sanctions économiques et droit international” (Droit n°57
(2013) 161-176).
143
Military and Paramilitary Activities in and against Nicaragua (Nicaragua v. United
States of America) (Merits) [1986] ICJ above fn. 20, [205].
144
G. Abi-Saab, op. cit. fn. 11, 205.
142
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in the main proceedings were adopted for ends other than those
stated in the contested acts”.145 The Grand Chamber concluded in
the negative: “The legality of a measure adopted in those areas can
be affected only if the measure is manifestly inappropriate having
regard to the objective which the competent institution is seeking
to pursue” 146. And it added that in that case there was “a reasonable
relationship between the content of the contested acts and the
objective pursued by them.” 147
The lawfulness of unilateral coercive measures can also be
challenged with respect to human rights obligations. The impact
of sanctions adopted by the Security Council on the human rights of
the population has been discussed at length. In the mid-1990, this
led to a shift in the practice of the Security Council from general
embargoes to targeted sanctions. In its General Comment 8 (1997),
the Committee on Economic, Social and Cultural Rights discussed
the effect of economic coercive measures on civilian populations
and especially on children, both in relation to UN sanctions and with
unilateral measures. If economic coercion is so drastic as to deprive
a population of its means of subsistence, this arguably amounts
to a violation of Article 1 (2) of the two United Nations Covenants
on Human Rights. Humanitarian concerns go nonetheless beyond
these extreme considerations. Notably, in the case Alleged violations
of the 1955 Treaty of Amity, Economic Relations, and Consular Rights
(Islamic Republic of Iran v. United States of America), in which Iran
challenged the US “sanctions”, the ICJ granted a limited number of
provisional measures on account that:
“The Court is of the view that a prejudice can be considered as
irreparable when the persons concerned are exposed to danger
to health and life. In its opinion, the measures adopted by the
United States have the potential to endanger civil aviation
145
146
147
76
ECJ, Rosneft case, fn. 57 above, [136].
Ibid., [146].
Ibid., [147].
Countermeasures and Sanctions
safety in Iran and the lives of its users to the extent that they
prevent Iranian airlines from acquiring spare parts and other
necessary equipment, as well as from accessing associated
services (including warranty, maintenance, repair services and
safety-related inspections) necessary for civil aircraft. The
Court further considers that restrictions on the importation
and purchase of goods required for humanitarian needs, such
as foodstuffs and medicines, including life-saving medicines,
treatment for chronic disease or preventive care, and medical
equipment may have a serious detrimental impact on the
health and lives of individuals on the territory of Iran”.148
The legality of targeted sanctions was mainly challenged before
the European Court of Justice149 and the European Court of Human
Rights150 on account of breaches of the human rights of the persons
listed. There is already a vast literature on this topic, which could
hardly be summarized in a paragraph or two.
Finally, unilateral coercive measures put the Charter system of
collective security to the test.151 The adoption of unilateral coercive
measures by regional organizations appear at odds with Article 53
148
Certain Iranian Assets (Islamic Republic of Iran v. United States of America)
(Preliminary Objections) [2019] ICJ [91] ; See also United Nations, Report of the Special
Rapporteur on the negative impact of unilateral coercive measures on the enjoyment of
human rights, Idriss Jazairy, A/HRC/19/33, 10 August 2015.
149
Among a long series of judgments concerning targeted sanctions, ECJ (Grand
Chamber), Yassin Abdullah Kadi and Al Barakaat International Foundation v Council
of the European Union and Commission of the European Communities, joined
cases C-402/05 P and C-415/05 P. [2008] (Kadi I); ECJ (Grand Chamber) European
Commission and Others v Yassin Abdullah Kadi, Joined Cases C-584/10 P, C-593/10 P
and C-595/10 P, [2013] (Kadi II).
150
See the land-mark judgment of the ECHR (Grand Chamber), Al-Dulimi and
Montana Management INC. v. Switerland [2016] [148].
151
This was broadly one of Russia’s arguments against unilateral coercive measures
during SC discussions, UN Doc. S/PV.7323, 14-19. Russia and China voiced their
views that unilateral coercive measures defeat the objects and purposes of measures
imposed by the Security Council and are not based on international law (The
Declaration of the Russian Federation and the People’s Republic of China on the
Promotion of International Law, 25 June 2016, § 6).
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of the Charter, which States: “The Security Council shall, where
appropriate, utilize such regional arrangements or agencies for
enforcement action under its authority. But no enforcement action
shall be taken under regional arrangements or by regional agencies
without the authorization of the Security Council.” And what States
cannot do through regional arrangements, they could hardly be able
to do all alone. Of course, the interpretation of “enforcement action”
in this provision may be different from the one given to the same
terms under Chapter VII, which encompasses both peaceful coercive
measures and the use of force.152 However, the considerable increase
and systematic use of unilateral coercive measures can also be seen
as a form of circumventing the Charter, when the conditions for
adoption of Security Council resolutions cannot be met.
It cannot be ignored however that this increase of unilateral
coercive measures is also a consequence of multiple failures of
the UNSC. Taking a naïve stance, one may say that States would
prefer to use the UNSC, not only to give themselves a guarantee
of legitimacy, but also to increase their effectiveness due to the
universality of implementation of its resolutions. Unilateral action
would thus be taken reluctantly and only when the UNSC is blocked
by a veto. This would be in sum the unilateralism of substitution.
But some of the unilateral “sanctions” have clearly been adopted
to defeat the UN process — the US unilateral coercive measures
against Iran fall into this category of circumventing unilateralism.
In this context, the US have established themselves as parallel
guardians of international security. In addition, through aggressive
extraterritorial enforcement of their “sanctions” regime, the US
can achieve a universality practically equivalent to that of a UNSC
resolution. Through extraterritoriality, a unilateral regime acquires
universal applicability. Extraterritoriality becomes indeed tool of
See R. Kolb, “Article 53 de la Charte des Nations Unies”, in J-P. Cot, A. Pellet,
M. Forteau (eds), La Charte des Nations Unies: commentaire article par article
(Economica 2005) 1415-1416.
152
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globalized obedience which shapes not only the foreign policy of
the original state, but also de facto that of other States.
Section 4. Conclusion
In the current state of the international legal system,
countermeasures are as abhorred as inevitable. Abhorred and
considered with circumspection since they are prone to abuse in
the hands of the more powerful States. Abhorred also because they
represent a form of private justice which speaks tones about the major
short-comes of the system, revealing the absence of any centralized
form of law-enforcement.153 But it is this very absence that renders
inevitable the use of countermeasures and this fact will not disappear
with a magic wand. This being said, the ILC managed nonetheless to
adopt a number of guarantees against abuse and, due to ARSIWA, the
regime of countermeasures stabilized to a considerable extent (which
does not mean that all grey zones disappeared).
This is in stark contrast with the treatment reserved to
unilateral coercive measures adopted either by States individually
or through regional organizations. The issue was left outside the
scope of the two projects of codification of State and international
organizations’ responsibility for wrongful act. It was also considered
to be too slippery or unripe for codification to be taken up by the
Institute of International Law. Yet, considering their systematic
use as a tool of foreign policy in the past two decades, it is urgent
that the topic be taken up again. It may be that no-one can provide
a definitive answer to the question of entitlement to resort to the
unilateral coercive measures or to their liceity. But their systematic
use raises the broader question of the efficiency of the system of
collective security and ultimately of its survival. From this point of
view also, the question of their place in international law needs to
be addressed.
153
G. Abi-Saab, op. cit. fn. 11, 275.
79
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Алина Мирон / Alina Miron
Контрмеры и санкции
Countermeasures and Sanctions
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