idea>war!

A war starts and ends with an idea. So the idea must be greater then the war. If a war starts and then people notice which idea is greater more people will join the side that hurts the least amount of people either morally or physically. In the video the lieutenant is asking his man to fight for him for the good of people. If the general asked to kill civilians it might have been a whole different outcome because that would be unmoral. That is why a moral idea can win a war.