There’s an amazing Japanese film, not great production values, about the 24 hours before the Japanese surrender. There were still people who wanted to fight till they could fight no more.
I THINK there was an agreement not to harm Kyoto because of it’s fantastic artistic and historical value.
Everything I’ve ever seen indicates that the bombings of Hiroshima and Nagasaki was the LEAST LETHAL method to ending the War.
Kyoto was spared because of it’s major religious significance to the Japanese and Tokyo because MacArthur and others realized that we would need something on which to rebuild Japan.