i just wanted to know what started it who won and what was the effect and who was fighting and did it effect the entire world
What started it: A rush for the last drop of oil. The US had it and refused to share. China wasnt a big fan of that idea and invaded Alaska. Noone's sure who launched the first nuke - and it doesnt really matter either.
Who Won: The Cockroaches. Nobody every truly "Wins" in war; in the great war this was taken to even further extremes. You can assume any pre war civilian government, at any level (local, state, federal, supernational), no longer exists. Anywhere.
The entire world was effected. Europe and the middle east had been slugging it out long before the US and China went at it, and the fallout and other nuclear damage is assumed to have spread worldwide, not to mention the fall of international commerce.