I'm not a fan of Tom Clancy or the games bearing his name, but this is clearly propoganda from the North Korean government. Of course it's true that American pop culture picks on certain nations, but it's fair to say that those countries are the same ones that the U.S. has conflict with, so they make logical choices for games, movies, novels, etc. that have a militaristic theme.
It's an interesting dilemma, because these games are only trying to create scenarios that seem "realistic". It would probably seem silly if the super-secret-special-operative-team from America were trying to infiltrate a military installation in Canada or Italy. On the other hand, it does perpetuate stereotypes when the villains are always from South America or the Middle East or "the former Soviet Union". There is propoganda in pop culture, even if it's not controlled by the government.
Personally, I prefer games with fantasy themes. They're more fun and less depressing.