Religion doesn't create wars...

Historically, religion accounted from a small fraction of the conflicts. Did it have its hand in some of it, probably, but actual wars for religion were quite limited. Wars in the old days were mostly for territory and power or revenge. World War 2 and the communist regime in the former USSR killed over 16 million people in a relatively short period of time and that was more anti-religion. Islam has brought a lot of war in today's world; they are the cause of most big conflicts. But you can't also discount the conflicts and civil unrest in Africa, the nature of the leader of North Korea and the expansion project of China. Green sustainable renewable energy will decapitate the muslim empire and their ability to wage war will be greatly diminished. I have no answer to the others, if there is even an answer.