For the first, it didn't break out, it constructed itself slowly and culminated then in a chaos. Why the inevitable had to occur, is not immediately evident. Therefore I must draw back unfortunately somewhat further.
Between the First and the Second World War, thus in the early Thirtys of the 20th Century, gradually the high industry arose. A country needed no more large colonies and large reservoirs, and the first atomic reactors made, starting from the Sixtys, many countries clearly more independently of coal, oil and gas. The more liberty was developed and the more possibilities for the particular arised for themselves, the faster social problems on global level developed, which before only played a role on national level. Radical movements mixed together suddenly on international level and donated unrest and controversy.
Starting from the end of the Eighties the economy tilted then, without getting noticed by someone. Unemployment rose ever more, since productions of the western countries were continued to automate. The unemployed persons and frustrated minoritys slowly became the majority.
Besides the populations of many states split ever more into arm and realm. The one won even more and the others fell into a hole becoming ever more largely among them by the change. Already at the beginning of the Oughts this polarization got grotesque. And also between the western countries and the third and/or fourth world, the polarization continues to go on. Much companies, which before shifted their production from cost reasons into poorer countries, returned again to their countries and threw the dismissed immigrant workers still more deeply into the poverty.
When Israel, without Jerusalem, and the rest of the Near East mutually terminated themselfs, it didn't take much time until the US invaded Saudi Arabia. Thereupon Al-Qaida ignited a smaller atomic explosive device before the coast of New Yorks, probably in the proximity of the Statue of Liberty. Manhattan was destroyed to a large extent and the Dow Jones was destroyed. The American economy thereupon nearly broke completely done and many national stock exchanges fell into nothing.
When the western world then laid in its last breath, Russia gave the mortal blow. While the Americans occupied the south and the west of Canada, Russia rolled over the Near East. China vogue up to a great power and "swallowed" Mongolia and Taiwan, which before, already ranked on Chinese maps among the territory of China. Later China took also Japan and both Koreas, the ASEAN states and central Asia were placed under its "protection".
When the Russians also invaded Europe, this was the official beginning of the war. In the course of the war Russia again turned into a developing country, the USA was back-thrown about 100 years in the economic development and China became the new superpower of the 21st Century. The EEC needed to recover again some years around itself and is at my time the most important "external" trade partner of China.
