“The question arose: what about the women and children? I decided to find a perfectly clear solution to this too. I did not consider myself justified in exterminating the men — that is, to kill them or have them killed — while letting avengers in the shape of their children grow up for our sons and grandchildren.”

- Heinrich Himmler

“I am persuaded that this is a righteous judgment of God upon these barbarous wretches, who have imbrued their hands in so much innocent blood; and that it will tend to prevent the effusion of blood for the future, which are the satisfactory grounds to such actions, which otherwise cannot but work remorse and regret.”

- Oliver Cromwell

“It was no longer a question of merely dispersing the crowd, but one of producing a sufficient moral effect, from a military point of view, not only on those who were present, but more especially throughout the Punjab.”

- Brigadier-General Reginald Dyer

> people who are ready to surrender don't need to be nuked twice.

The question remains whether in fact Japan "needed" to be nuked even once - it's unknown whether the ongoing city by city destruction would have resolved WWII.

Further, did they "need" to be nuked a second time so quickly (within three days)? That second nuke was not to force a surrender (just as the first wasn't) - the two bombings were two live tests of two separate weapon designs untested in the field of war.