Have you played Killzone: Shadowfall?
Anyway, I'll assume you're being serious. The problem with a game like you suggest is that there isn't a clear enemy. Depending on who you ask (and, no, I'm not asking any of you assholes), the "bad guy" here will change. Unlike a conflict such as WWII where even Germany knows they were dicks, to put it lightly. Not to mention this shit is, uh, still going on? Poor taste IMO.
I'd definitely love to see a game tackle the subject in some other way, though. Especially if it came from a team over there.