Since South Korea has obviously become nothing but another puppet state of the zionist, globalist, neoliberal United States, this worldview is reflected more and more in its movie industry as well. Who is the boogey man? Evil "right wing extremist" Japanese. Their leader actually is the one who makes sense, wanting to protect Japan from the evil America influence which brings nothing but depravity, destruction and financial slavery everywhere it takes root. So of course they had to make him an expansionist who wants to reconquer Korea again as well, otherwise the audience would sympathize with him, and we can't sympathize with nationalists, can we? This is a neoliberal movie after all. There is also a nationalist North Korean general who's stance also makes sense until they turn him into a bad guy as well.
I did like the bonding between the North and South Korean leaders and how the American president was portrayed as a disrespectful, tactless, total buffoon who "just wants to make some money", although even that was so overexaggerated and free of nuance that it felt like a stupid liberal comedy sketch and took any remaining seriousness out of the film.
Oh and by the way, the entire story as a whole is also pretty ridiculous, especially to anyone who understands which forces truly run the world. Part 1 was really awesome. This one has nothing to do with. Don't waste your time.