So... World War 5
World monetary systems collapse
North Korea takes it's chance while the world is preoccupied
North Korea invades it's southern neighbours
America gives military support to South Korea
China aid North Norea, an opportunity to test it's new weapon technology.
America goes to South Korea's aid declaring war on China.
The European Union aid America.
Russia aid China.
Iran, news goes worldwide, announcing it has created Nuclear weapons.
China, Russia, America and Europe sign a peace accord.
China, Russia, America and Europe (in a joint offensive,) invade Iran.
The joint invasion goes well and the capital become surrounded.
Iran detonates it's nukes on home soil as a last act of defiance.
Wow that would be a book.