The first nuclear weapons to be used against another nation were dropped A. by the United States during World War II.
What was the first nuclear weapon?
The first nuclear weapon called the Trinity was dropped over the city of Japan's Hiroshima on August 6, 1945. This first nuclear bomb was nicknamed “Little Boy."
This first nuclear weapon was used after it was first ever detonated in New Mexico during testing on July 16, 1945.
It was not dropped during the Cold War or by the Soviet Union.
Thus, the first nuclear weapons to be used against another nation were dropped A. by the United States during World War II.
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