On the morning of December 7, 1941, Japan attacked the US naval base at Pearl Harbor, Hawaii.
The surprise attack by some 350 Japanese aircraft sunk or badly damaged eighteen US naval vessels, including eight battleships, destroyed or damaged 300 US aircraft, and killed 2,403 men.
Across the nation, Americans were stunned, shocked, and angered. The attack turned US public opinion in favor of entering the Second World War. The United States declared war on Japan on December 8, 1941.
Japan’s allies, Germany and Italy, declared war on the United States on December 11. The United States responded in kind, and therefore entered World War II.
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