I've done my homework.  During the Korean war 3 million civilians were killed in a relentless bombing campaign run by Americans that was so thorough they ran out of targets and so then started bombing dams.  Which is technically a war crime, by the way.

Imagine what we would be like if that happened to us.

https://zcomm.org/znetarticle/why-do-north-koreans-hate-us-the-korean-war/