Just before 8:00 a.m. on Sunday, December 7, 1941, the Imperial Japanese Navy launched a surprise carrier-based air attack on the United States naval base at Pearl Harbor, Hawaii. Devised by Admiral Isoroku Yamamoto, the strike aimed to cripple the US Pacific Fleet, preventing American interference with Japan's planned expansion across Southeast Asia.
Two waves of over 350 Japanese aircraft struck warships, airfields, and installations. The attack sank or damaged 19 U.S. Navy vessels, including eight battleships, destroyed 188 aircraft, and killed 2,403 Americans. Crucially, however, the three primary U.S. Pacific Fleet aircraft carriers were at sea and escaped harm, while shore repair facilities and fuel depots survived intact.
The assault united a previously isolationist American public. On December 8, President Franklin D. Roosevelt asked Congress for a declaration of war, officially drawing the United States into World War II across both the Pacific and European theaters.
Why it matters
Pearl Harbor ended American isolationism and propelled the world's largest industrial power directly into the war. It unified global Allied strategy, linked the Asian and European conflicts into a single worldwide struggle, and set the stage for Japan's ultimate downfall through total war.
Interesting fact
U.S. radar operators detected the incoming Japanese attack force over an hour before the bombing began, but officers mistook the signal for an expected flight of American B-17 bombers.
People
- Isoroku YamamotoCommander-in-Chief of Japanese Combined Fleet who planned attack
- Chuichi NagumoVice Admiral commanding Japanese carrier strike force
- Franklin D. RooseveltPresident of the United States who declared war
- Husband E. KimmelCommander-in-Chief of United States Pacific Fleet
Quotes
"Yesterday, December 7th, 1941 — a date which will live in infamy — the United States of America was suddenly and deliberately attacked."
Gallery
Location
Pearl Harbor Naval Base · Honolulu · United States
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