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| Location Lat 9° 26′ S Long 160° 18′ E Tasimboko is located at an elevation of 32' / 7m above sea level on the north coast of Guadalcanal. Also spelled Tadhimboko. Borders Iron Bottom Sound to the north and Taivu to the east. Prewar and during the Pacific War part of the British Solomon Islands Protectorate (BSIP). Today part of Guadalcanal Province in the Solomon Islands. Wartime History On August 30, 1942 during the night and into the the early morning of August 31, 1942, more than 6,000 Japanese soldiers of the "Kawaguchi Force" land in the Tasimboko area then will advance eastward to attack the U.S. perimeter. On September 8, 1942 in the early morning, a provisional battalion of 813 Marines from the depleted 1st Raider Battalion and 1st Para Battalion under the command of Col Merritt A. Edson are embarked aboard high-speed transports USS McKean (APD-5) and USS Manley (APD-1) plus two patrol boats for a landing near Tasimboko. The operation was planned based on a report by Coastwatcher Martin Clemens about the Japanese landing further to the east at Taivu Point. At 5:20am, the first wave of 501 Marines including Col Merritt A. Edson land at Taivu and are supported by Marine aircraft from Henderson Field and gunfire from the destroyer transports. After the first wave landed, Edson's force advance towards Tasimboko but were slowed by Japanese resistance that results in eight casualties including two Killed In Action (KIA). At 11:00, the second wave landed and continued the push. Believing a major landing was underway, the Japanese retreated into the jungle, leaving behind 27 dead. At Tasimboko, the Marines discovered the supply base for the Japanese Army "Kawaguchi Force" including large stockpiles of food, ammunition and medical supplies and a shortwave radio. The Marines seized documents, equipment and food supplies, destroyed the rest, and returned to the U.S. perimeter at Lunga by 5:30pm. The quantities of supplies and intelligence from the captured documents revealed that at least 3,000 Japanese troops were on Guadalcanal and were planning a major attack. Contribute Information Do you have photos or additional information to add? Last Updated September 8, 2026 |
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