* https://www.goodreads.com/book/show/51089656-140-days-to-hir...
* https://www.nationalww2museum.org/about-us/notes-museum/140-...
It documents, using Japanese source material including interviews with the principals involved, the decision making process leading up to the eventual surrender.
What was most surprising to me was the reluctance of many members to surrender even after two bombs were dropped. The Emperor himself had to be called in multiple times (which was unprecedented) to ensure that the surrender was 'pushed' through. Even after the vote to surrender happened there were still machinations to overturn it: a reminder that there was a coup attempt to prevent the surrender from being broadcast:
The normal response to this line of reasoning is that they were / could have been doing the same to us. Two wrongs does not make a right does it?
Somehow GPT-5 got this badly wrong when I first asked:
Er, no. They were married once and divorced 50 years ago according to their Wikipedia pages.