Wouldn't it be cool if two alliances who didn't like each other, instead of going to war directly: They funded proxy alliances and urged them to go to war with each other? Everybody would have to take sides, and it will be a long build up. Instead of just engaging in a costly war off the bat? And once everyone has had enough the two blocs will engage in a massive war?
This is From the Mind of Lex Luthor,
Source: CN Cold War