On December 7, 1941, Japanese forces launched a surprise attack on the Pearl Harbor naval base on Oahu, Hawaii.
Library of Congress
The strike began just before 8 a.m. on a Sunday, carried out by a strike force that included 353 Japanese planes, 35 submarines and two battleships.
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Multiple American ships were damaged or destroyed. More than 160 aircraft were destroyed.
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While Japan hadn't declared war on the United States prior to the strike, there were some indications of a possible attack.
According to The National WWII Museum, an American cryptologist intercepted a Japanese message regarding Pearl Harbor on Dec. 6.
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The strike killed more than 2,400 Americans, and it catapulted the United States into World War II.
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The USS Arizona Memorial in Hawaii marks the resting place of the crewmen killed that day.
December 7 has since been remembered as, in President Franklin Roosevelt's words, "a date which will live in infamy."