If WWIII started during in the next 5 years, what do you think would happen?
The Japanese have naturally allied with the USA, and so have the South Koreans. They collectively take the whole Korean peninsula. Thailand and the Australians have also joined the Coalition for Freedom, but they soon find themselves on the defensive against Indonesia, Vietnam, Cambodia, and Laos. Chinese see a threat from the North (Russians) and from the Korean peninsula. They launch an attack on the Russians, Koreans, and Japanese, yet none of the respective allies of either those three join against the Chinese.
South America stays out of the whole thing, and becomes a booming industrial zone, financing and selling arms to both sides. The war ends in a stalemate, with most countries devastated, except for New America (the combination of all countries in South America) which has now become the leader of the First World. New America's main issue is illegal immigration by the lazy Old Americans. (USA).