It's highly unlikely that NK and China would team up as all china wants to do right now is make some nice dough, but a ground war would be impossible to win. Nuclear war would eventually lead to MAD occurring for all parties involved. It would be a lose-lose situation for everyone... and it's not just like it would be U.S. vs. them. A few would join us, more would join them, it would be World War III. As Einstein said: "I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.". WWIII would almost be just like a reset button in a video game. In fact probably the only continents to not get hit by nukes would be Africa and Antarctica. Heh... and maybe those crazy Australians
