‘US government documents admit that the atomic bombing of Hiroshima and Nagasaki was not necessary to end WWII. Japan was on the verge of surrendering. The nuclear attack was the first strike in Washington’s Cold War on the Soviet Union. Ben Norton reviews the historical record.’
there is a famous youtube video on this that go through all the military personnel memoirs and other documents about the lead up to the bombing. https://youtu.be/RCRTgtpC-Go
also watch oliver stone docuseries on american history (first 2 episodes)