History · 2

Which Japanese military action triggered U.S. entry into World War II?

Answer

Attack on Pearl Harbor

The Japanese attack on Pearl Harbor on December 7, 1941, killed over 1,100 Americans and destroyed numerous warships and aircraft, prompting the United States to declare war on Japan the following day. This surprise military assault on the American naval base in Hawaii galvanized American public opinion for war and brought the United States into World War II. President Franklin Roosevelt called December 7 'a date which will live in infamy,' and the attack unified Americans behind the war effort against Japan and the Axis powers.

💡 Did you know?

The USS Arizona battleship sank during the Pearl Harbor attack with 1,102 sailors aboard, and oil from the wreck continues to leak from the ocean floor.

Other options people guess

  • Attack on Midway
  • Invasion of Manchuria
  • Invasion of the Philippines

Topics

  • world-war-2
  • american-history

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