An attempt (right or wrong) to save Allied lives by unleashing a weapon so terrible that the Japanese would surrender immediately, rather than fight inch by inch to the death - which was the US experience at that time.
Not dropping it!
Harry s. truman approved the dropping of an atomic bomb on japan.
Most think he was not wrong about dropping the atomic bombs.
The atomic bomb was dropped on Hiroshima and Nagasaki in World War 2.
Black rain spreads the radiation after an atomic bomb. The mushroom cloud puts radiation in the atmosphere, which becomes the black rain. Black rain is the main cause for widspread cancers and other sicknesses after an atomic bomb.
President Truman.
It ended the war!
President Truman
President Truman.
See atomic bombings of Hiroshima and Nagasaki
See: Atomic bombings of Hiroshima and Nagasaki
Well, it was usually considered the official start.