Repeating from another thread:
Regarding activities of WW2: WWI was waged exclusively against enemy troops. Germany was back for a re-match within 20 years. WW2 brought the war to the ENTIRE populace: the wealthy, the poor, the women, the children. We convinced the entire population that going to war against us was a terrible idea, and we haven’t heard a peep out of Germany OR Japan in several generations.
The best way to pacify a country is to have it be the case that when a man speaks approvingly of war, his women scream at him in rage and terror.
They started it....we finished it....end of story.