December 11 in American History

December 11, 1941 — Germany and Italy declare war on the United States

Four days after Pearl Harbor, Hitler's Germany and Mussolini's Italy declared war on the United States, and Congress responded in kind the same day. America was now fully committed to a two-front war — the Pacific and Europe at once — that it would spend the next four years, and enormous sacrifice, winning.

Common Questions

What happened on December 11 in American history?

In 1941: Germany and Italy declare war on the United States. Four days after Pearl Harbor, Hitler's Germany and Mussolini's Italy declared war on the United States, and Congress responded in kind the same day.

Why is December 11 significant?

Four days after Pearl Harbor, Hitler's Germany and Mussolini's Italy declared war on the United States, and Congress responded in kind the same day. America was now fully committed to a two-front war — the Pacific and Europe at once — that it would spend the next four years, and enormous sacrifice, winning.

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