The Way of WWIII
There are many reasons to occur wars, which are mostly economics and politics. Monglians and Normans made wars to secure their trading routes. Religious politics often made wars like Muslims, Crusaders and Nazis. There are the cases to occur wars by the reason of that they kept too enough armies. That are Yuan dynasty in China and Toyotomi administration in Japan. European states which had caused The Great War are same reason. Their states were so peaceful that they thought obeying around countr...