Due to the delayed advance of the Allies and the efficient German defense network, the pre-war defensive wall known as the Siegfried Line, ultimately proved its worth. Fierce fighting would break out south of Aachen, in a hilly, wooded ...See moreDue to the delayed advance of the Allies and the efficient German defense network, the pre-war defensive wall known as the Siegfried Line, ultimately proved its worth. Fierce fighting would break out south of Aachen, in a hilly, wooded area called Hürtgenwald.
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