Question

Which event directly led to America's formal entry into World War II?
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1 point
The invasion of Poland
The attack on Pearl Harbor
The fall of France
The Battle of Britain

Answer 1

The event that directly led to America's formal entry into World War II was **the attack on Pearl Harbor**. This surprise military strike by the Japanese Navy against the United States naval base at Pearl Harbor on December 7, 1941, prompted the U.S. to declare war on Japan the following day, officially entering the conflict.