Inaccurate, Slow-moving, and stupid.
I started writing a LIST of inaccuracies about this movie. First of all, why on EARTH would China need to invade North Korea? They're ALLIES. If China decided to get at SOUTH Korea, the North Koreans would let China roll right on through. Secondly, Taiwan is widely believed to have nuclear weapons. If China started ANYTHING against that tiny island, they'd defend themselves with their nukes. And good grief, if a nuke hit Manhattan?! There wouldn't be buildings. I'm not sure how a mushroom cloud (apparently the size of a city block) is billowing with Manhattan looking just fine. Furthermore, air-to-air missles do not launch from bays WITHIN the planes. They're mounted on the wing of any plane I've ever seen. Tanks don't roll forward without infantry accompanying them. And the scene where the nuke drops from our bombers? What was that, the 60 year-old nuke from Hiroshima? DO SOME FRICKIN REASEARCH!