Six carriers cross the Pacific in secret and change America's war
What happened
Planned by Admiral Isoroku Yamamoto, six Japanese aircraft carriers crossed 3,000 miles of open ocean undetected and launched a surprise strike on the US Pacific Fleet at Pearl Harbor. In under ninety minutes, Japanese aircraft destroyed or damaged 19 warships and around 300 planes and killed more than 2,400 Americans; nearly half the dead were crewmen of the USS Arizona, which sank within minutes after a bomb ignited more than a million pounds of stored ammunition, and whose wreck still rests in the harbor as a memorial. The US aircraft carriers, absent at sea that morning, survived untouched. Within months Japan's offensive overran Hong Kong, Malaya, and the Dutch East Indies; at Bataan in the Philippines, 75,000 surrendering American and Filipino troops were forced onto a 65-mile death march that killed at least 5,000 in five days.
Why it matters
Pearl Harbor is remembered as the single blow that brought the United States into the war, but the string of catastrophic Allied surrenders that followed within weeks, at Bataan and then at Singapore, where 80,000 British, Indian, and Australian troops surrendered in February 1942, show just how unprepared the Allies actually were for the offensive Yamamoto's gamble opened.
How we know
US Navy damage-assessment records compiled in the attack's immediate aftermath, combined with Japanese fleet action reports captured after the war, let historians reconstruct the attack almost minute by minute from both sides.
Sources
- The National WWII Museum. Pearl Harbor Attack, December 7, 1941 · Reputable sourcenationalww2museum.org · The domain "nationalww2museum.org" is on our Reputable source registry. · Link is live and its text matches the event's key terms (Jul 2026)
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