What was the main reason given by Americans who supported the atomic bombing of Japan?

1. American casualties in a conventional attack would have been too high.

2. The Japanese would have used atomic weapons on the U.S.

3. There was nothing unusual about atomic weapons.

4. Japanese soldiers had committed war crimes against American prisoners.

The main reason given by Americans who supported the atomic bombing of Japan was "American casualties in a conventional attack would have been too high."

What is atomic?

In August 1945, the United States released two atomic bombs over the Japanese cities of Hiroshima and Nagasaki, killing 210,000 people, including men, women, and children. To hasten Japan's surrendering in the Second War, President Truman authorized the launch of the atomic bombs. Truman's intention was to undermine Japan's capacity to wage war, not its culture or its people.

Hence, option A is correct.

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