My father was in WWII, Rap. He drove a tank for the Allies. He advised me in the strongest terms NEVER to enter the military and never to get involved in any war, based on his experiences. He said it was the biggest waste of lives and material that he ever saw and ever expected to. (And he did feel at the time that the Nazis had to be defeated...but still, he advised me never to get involved in any war.)

The Germans he met after the war felt exactly the same way about it that he did. "Never again" was their motto too, not just the motto of those whose relatives perished in the Holocaust. War between nations is the biggest mistake people can possibly make.