Why can't Capitalism and Communism get along without performing war on Third World countries?

Capitalism and Communism have had war after war after war in the past century. Now I'm not here to tell you that they are evil. That's not my place to pass judgement. I'm simply going to analyze the conflict.Capitalism wants the world to be controlled by money. Not a bad idea, if you already have a lot of money, but the Communists DON'T have a lot of money. Communism on the other hand wants to control a one world government and is very resentful of Capitalism. Communism wants to force Capitalism's hand to show that it is truly in control.Communism claims to have the consent of the people, but there are no elections. Elections can be corrupt but they are the best tool we have to judge the consent of the people. Russia became democratic to prove the consent of the governed and that was a wise decision. Russia is a better place for it.The key to defusing the conflict between Capitalism and Communism is trade. The trade sanctions that the US has on Communist countries should be lifted as soon as possible. And why? To defuse war.War is a categorical evil in this world. While both Capitalism and Communism think that war is good for the economy, IT IS NOT GOOD FOR THE ECONOMY! Look at what the Bush years did for the economy. He left Obama with a big old mess to clean up.In short, Capitalism is not all good, but Communism is not all good either. At least in Capitalism you are allowed to believe in God. They don't take away people's bible like the Soviets did to the Polish after WW2. So I suppose I side with Capitalism, but NEVER to support war.