China, the most populous; Russia, the largest; USA, the most military. And here is the key hypothesis, presumably more right than wrong: China-Xi: positive peace; Russia-Putin: negative peace; USA-Obama: war. It takes at least two to make wars, and two to make peace. The other side has to play the same role. The question is: who will yield to the other, China-Russia to major wars, or the USA to major peace?