Which event, taking place on a fateful day in December, marked the beginning of the United States' active involvement in a global conflict, changing the course of history?

Category: History · Difficulty: hard

Hint: This event occurred in 1941 and was a surprise military strike.

Answer

Attack on Pearl Harbor

Explanation

The attack on Pearl Harbor triggered the United States' entry into World War II.

This is a hard history riddle — a tricky one that takes a little thought. The answer is Attack on Pearl Harbor.

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