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There were several factors in President Truman's decision...

  • The Japanese government refused to surrender after the U.S. had warned them about a "powerful new weapon".
  • The alternative was a full-scale invasion of Japan, and the bloody invasions of Iwo Jima and Okinawa had proven that an invasion of the home islands would be costly.
  • It was believed that the shock of the bombing would cause the Japanese to surrender quicker, thus saving many lives on both sides.
  • Truman was suspicious of Stalin's motives, and used the bombing as a warning to the Soviet Union, foreshadowing the Cold War.

Hiroshima itself was chosen as it had been deliberately left untouched by U.S. bombing to measure the damage of the atomic bomb. It was also home to several minor military and industrial targets.

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13y ago

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