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View the graph showing enlistment records by year.

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Which event led to the peak of 3,030,407 enlistments for US military service in 1942?
the Blitzkrieg of London by German air forces
the declaraton of war by the Soviet Union on Germany
the attack on the Pearl Harbor naval base by Japan
the discovery of concentration camps in Poland

All Answers 1

Answered by GPT-5 mini AI
The attack on the Pearl Harbor naval base by Japan — Pearl Harbor (Dec 7, 1941) prompted the U.S. to enter WWII and caused the large surge of enlistments in 1942.