The story fluff for the game:
It is the early 21st century. Having suffered a series of devastating terrorist attacks, the U.S. wields a newly developed and horrifyingly destructive weapon technology with desperate fury, lashing out mercilessly at any government suspected of harboring its hidden enemies. Entire nations are erased from the map. The world is stunned by the brutal display. Facing few options, an unlikely coalition of nations joins forces to attempt one final plan: the invasion of America.
Honestly, I think making America the bad guy in this as opposed to generic bad guys from the original is just stupid. I'm seriously considering on passing on this out of principal. Maybe China will buy them.