Until WWII, the US population generally favored isolationism and were very reluctant to get involved in "Europe's wars". The attack on Pearl Harbor instantly sh

Until WWII, the US population generally favored isolationism and were very reluctant to get involved in "Europe's wars". The attack on Pearl Harbor instantly showed Americans that we were no longer insulated from the world. "During the war, over 16 million Americans served in the United States Armed Forces, with 405,399 killed in action and 671,278 wounded. There were also 130,201 American prisoners of war, of whom 116,129 returned home after the war." https://en.wikipedia.org/wiki/Military_history_of_the_United_States_during_World_War_II https://en.wikipedia.org/wiki/Military_history_of_the_United... Soldiers returned home with stories of what they had seen, including horrors of the death camps in Europe and atrocities in the Pacific. This deeply affected Americans. I was born decades after it ended, but growing up it seemed everyone older than me had been affected by it. Also, the modern media age was in full swing. Huge amounts of footage had been filmed during the war, and there was an oversupply of military hardware that needed blowing up. These made WWII films easy to splice together. The US was operating a massive program of denazification in Germany and demilitarization in Japan. This was combined with economic rebuilding with the goal of establishing the type of peacetime prosperity that people wouldn't want to give up for fighting. Why Nazis specifically? Many Americans saw what happened to the modern hardworking Protestant society that was Germany and thought "Oh so this is what it looks like when white people become drug-fueled psycho nationalists" and then quickly "Dear God, please not here."