>I mean, why do you think the US nuked Japan at the end of WW2? Because it was the most expedient and economic way to kill enough people to break the government's will to fight and make them surrender.
Except that's not really true. The atomic bombs dropped on Hiroshima and Nagasaki had little to do with "ending the war more quickly"[0]:
"The Soviet invasion of Manchuria and other Japanese colonies began at midnight on August 8, sandwiched between the bombings of Hiroshima and Nagasaki. And it was, indeed, the death blow U.S. officials knew it would be. When asked, on August 10, why Japan had to surrender so quickly, Prime Minister Suzuki explained, Japan must surrender immediately or "the Soviet Union will take not only Manchuria, Korea, Karafuto, but also Hokkaido. This would destroy the foundation of Japan. We must end the war when we can deal with the United States."
As postwar U.S. intelligence reports made clear, the atomic bombs had little impact on the Japanese decision. The U.S. had been firebombing and wiping out Japanese cities since early March. Destruction reached 99.5 percent in the city of Toyama. Japanese leaders accepted that the U.S. could and would wipe out Japan's cities. It didn't make a big difference whether this was one plane and one bomb or hundreds of planes and thousands of bombs."
[0] https://www.usnews.com/opinion/articles/2016-05-27/its-time-...
The emperor's surrender speech made direct reference to the atomic bombs.
Following the Hiroshima bombing on August 6, and the Soviet declaration of war and Nagasaki bombing on August 9, the Emperor's speech was broadcast at noon Japan Standard Time on August 15, 1945, and referred to the atomic bombs as a reason for the surrender.
"Furthermore, the enemy has begun to employ a new and cruel bomb, causing immense and indiscriminate destruction, the extent of which is beyond all estimation. Should we continue to fight, not only would it result in the ultimate collapse and obliteration of the Japanese nation, but it would also lead to the total extinction of human civilization."
https://en.m.wikipedia.org/wiki/Hirohito_surrender_broadcast
And while the Prime minister at the time said that, the military was preparing to fight to the death and took steps to prevent surrender.
I've read this too but it doesn't disprove what US was thinking at the time.
People think others think like them. US being a democratic country and considering the value of a life to be high, I have no trouble believing that the US government did think the Japanese government would consider the cost of continued fighting to be too high.
> The "prompt and utter destruction" clause has been interpreted as a veiled warning about American possession of the atomic bomb[1]
We now largely know strategic bombing does not work [2] but it still doesn't stop some from trying now, it certainly did not back then.
[1]: https://en.wikipedia.org/wiki/Potsdam_Declaration
[2]: https://acoup.blog/2022/10/21/collections-strategic-airpower...