Final answer:
The U.S. dropped atomic bombs on Japan to force a quick surrender, saving lives and demonstrating military strength, leading to the end of World War II in the Pacific.
Explanation:
The official reason the U.S. gave for dropping the atomic bombs on Japan was to force a quick surrender and end the war without a costly invasion. President Truman and military leaders believed that using the bombs would save more lives by avoiding a prolonged conflict and the potential casualties of a full-scale invasion.
Estimates suggested that an invasion of Japan could result in hundreds of thousands of American casualties and millions of Japanese civilian deaths. The decision to use atomic weapons was also influenced by the success of prior fire-bombing campaigns and the belief that the bombs would demonstrate American military superiority.
Ultimately, the atomic bombings of Hiroshima and Nagasaki led to Japan's surrender and the end of World War II in the Pacific. The devastating impact of the atomic bombs prompted Japanese officials to agree to unconditional surrender terms, marking the conclusion of the conflict.
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