Code-Name Downfall: The Secret Plan to Invade Japan-And Why Truman Dropped the Bomb cover
Code-Name Downfall: The Secret Plan to Invade Japan-And Why Truman Dropped the Bomb
by Thomas B. Allen, Norman Polmar
ISBN: 0684804069
Buy on Amazon
Found in 1 comment on Hacker News
WalterBright · 2024-03-28 · Original thread
It clearly sped things up.

"Downfall" by Richard Frank

https://www.amazon.com/Downfall-End-Imperial-Japanese-Empire...

"Code-Name Downfall" by Thomas Allen

https://www.amazon.com/Code-Name-Downfall-Secret-Japan-Dropp...