As for the west, there may be reasons to start another war. The United States are a few steps away from going bankrupt, they need to survive the meltdown while preserving their world domination. They need a state of emergrgency for that and some extraordinal measures, a kind of total and direct conttrol of the whole national wealth for the period of restructuring, in order to prevent social unrest and revolutions. They need a justification for that. A war would be good for that. They could for example set off a nuclear bomb or two inside the USA and blame North Koreans for that, and use it as an excuse for emergency...