FLASHBACK: Japan Said It Would Take One Million Men 100 Years To Take This Fortified Atoll, A Few Thousand US Marines Did It In Three Days

Seventy-four years ago, the U.S. Marines waged war against Japanese forces across the Tarawa atoll in the Gilbert Islands.

Japanese Admiral Keiji Shibasaki, commander of the highly-fortified garrison on Betio Island, was reportedly so confident in his position that he claimed it would take one million men 100 years to take control of the atoll.

The U.S. Marines took it in three days, but it was, according to one historian, “the toughest battle in Marine Corps history,” Business Insider introduced.

The Battle of Tarawa, the first target of the broader Central Pacific campaign in World War II and part of Operation Galvanic, began on November 20, 1943 as 18,000 U.S. Marines stormed the beaches at Betio, Tarawa’s largest island defended by around 4,500 Japanese troops, many of which were first-rate troops, as well as mines, barbed wire, machine gun nests and pillboxes, and various heavy artillery.

As Tarawa was the most fortified atoll the U.S. would invade during the Pacific campaign, the brutal battle proved to be much more difficult than U.S. troops initially expected.

Before the Marines made their assault, the Navy opened fire on the beach defenses with repeated bombardments, but the Navy warships failed to eliminate the vast majority of the Japanese defenses.

Today, 74 years ago, the Battle of Tarawa began.

A Japanese commander said it would take one million men 100 years to conquer the island – 18,000 Marines did it in 76 hours.

Ooh-Rah, Marines! pic.twitter.com/ukdcpGG5Qu

— U.S. Marines (@USMC) November 20, 2017

The Marines encountered numerous setbacks during the Tarawa assault, including low tides that prevented the landing craft from clearing the coral reefs. As the Japanese pounded the stranded crafts, the U.S. Marines were forced to wade over 500 yards in chest-deep water under fire to get to shore. After reaching the beach, the exhausted Marines pushed forward, engaging the elite Japanese troops in a bloody battle that resulted in the deaths of thousands on both sides.

The U.S. Marines lost around 1,000 men, and another 2,000 were wounded in the Battle of Tarawa, but the Japanese losses were far worse. After three days of intense fighting, only seventeen Japanese soldiers were left to surrender.

Admiral Shibasaki was reportedly killed on the third of the fight. Sixteen enlisted men and one officer were all that remained at first light on November 23, 1943, 76 hours after the battle began.