User blog comment:JoeRamirez/Call of Duty Modern Warfare 3 Weapons Wishlist./@comment-3326681-20110706205651/@comment-1431679-20110706232228

China and Russia are allies, you could possibly see Chinese troops assisting Russian troops. And since US has a massive debt to China (2nd largest debt is to them) they could invade to "collect" the debt payments.