The 18,000 Marines and sailors who landed on the island of Betio in the Tarawa atoll in the Pacific Ocean early on November 20, 1943, waded into what one combat correspondent called "the toughest battle in Marine Corps history."
After 76 hours of fighting, the battle for Betio was over on November 23. More than 1,000 Marines and sailors were killed and nearly 2,300 wounded. Four Marines received the Medal of Honor for their actions — three posthumously.
Of roughly 4,800 Japanese troops defending the island, about 97% were killed. All but 17 of the 146 prisoners captured were Korean laborers.
"Betio would be more habitable if the Marines could leave for a few days and send a million buzzards in," Robert Sherrod, a correspondent for Time, wrote after the fighting.
The victory at Tarawa "knocked down the front door to the Japanese defenses in the Central Pacific," Adm. Chester Nimitz, commander in chief of the Pacific fleet, said afterward.