Raise the stakes, escalate, brutalise and threaten war but never, ever actually start a full-scale unrestrained conflict. Nothing so certainly disassembles dictatorial regimes as a blind leap into armed conflict and imperialist aggression. Sure, none of us will ever miss any of these unrepentant misanthropes but how few of them ever learn from the historical record. Begin a war and sooner or later even a superwealthy totalitarian will lose everything. It is a simple equation and yet none of them ever seem to learn this lesson.
What a world. What a mess.