Part of the Bougainville Campaign in the Pacific Theater (World War II)
Marines from the 1st Parachute Battalion on the beach at Koiari 29 November 1943
Date
28–29 November 1943
Location
Bougainville in the South Pacific
Result
Japanese victory
Belligerents
United States
Japan
Commanders and leaders
Roy Geiger Richard Fagan
Masatane Kanda Shun Iwasa
Strength
614
est. 1,200
Casualties and losses
15 dead 99 wounded 7 missing
est. 145–291 killed
v
t
e
Bougainville campaign
Japanese Invasion
1943
1st Cape Torokina
Empress Augusta Bay
Koromokina Lagoon
Piva Trail
Coconut Grove
Piva Forks
Cape St. George
Koiari Raid
Hellzapoppin Ridge & Hill 600A
1944
2nd Cape Torokina
Pearl Ridge
1945
Tsimba Ridge
Slater's Knoll
Hongorai River
Porton Plantation
Ratsua
The Raid onKoiari was a battle that occurred between 28 and 29 November 1943 in the Pacific theater of World War II between American and Japanese forces. Part of the Bougainville campaign, the raid involved a landing by a battalion-sized force of United States Marines to harass Imperial Japanese Army troops on Bougainville Island. The raid was a failure for the Americans as they were attacked by a larger-than-expected Japanese force and as a result the Marines were withdrawn from the beachhead without having achieved any of their objectives.
The RaidonKoiari was a battle that occurred between 28 and 29 November 1943 in the Pacific theater of World War II between American and Japanese forces...
eventually see action, the 2nd Parachute Battalion performed a diversionary raidon Choiseul Island, from October 27 - November 4, 1943. The three parachute...
Infantry Regiment, the 1st Marine Parachute Battalion carried out a raidonKoiari, about 9.3 miles (15 km) east of Torokina. After landing unopposed,...
A military raid is a mission where the main objective is to demoralize, destroy valuable enemy installations, free prisoners, gather intelligence, or capture...
end of November, they launched an unsuccessful raidonKoiari, to the south of the beachhead. Beginning on 15 December, the Japanese began an effort to...
on Bougainville. During the Battle of Bougainville, Iwasa successfully opposed the landings of the United States Marine Corps during the KoiariRaid....
were on Buka Island, on the nearby Bonis Peninsula, and at Kahili and Kieta, while naval bases were also constructed at Buin in the south and on the nearby...
Hill 600A consisted of a series of engagements fought in mid-December 1943 on Bougainville between forces of the United States Marine Corps and the Imperial...
and another attempt was cancelled on 5 November after an air raid. The landing force finally departed Rabaul on 6 November aboard four destroyers. They...
and as a result although the fighting on Bougainville continued with notable actions being fought at Koiari and Hellzapoppin Ridge and Hill 600A, in...
command of Captain Eikichi Kato, the senior naval officer in Buka—began to raid the Australian supply lines between Ruri Bay and Ratsua as they attempted...
engagement of the Second World War fought between Australian and Japanese forces on Bougainville Island. Part of the wider Bougainville Campaign, the battle took...
Truk for another attack on the Allied landing forces at Bougainville. On 5 November, however, two US aircraft carriers raided Rabaul, heavily damaging...
to reinforce the Marines. In late December work on the airfields was complete and aerial bombing raids began against the Japanese base around Rabaul, while...
Corps and Imperial Japanese Army forces on Bougainville Island during the Pacific War. The battle took place on 13–14 November 1943 during the Bougainville...
Porton Plantation (8–10 June 1945) took place near the village of Soraken on Bougainville Island, in the Solomon Islands archipelago during World War II...
within the Soviet Union. The KoiariRaid at Bougainville began. A force of U.S. Marines was landed to harass Japanese troops on the island. The German submarine...
frequent Allied aerial raids during early 1944, and the Japanese high command decided to withdraw them following a major attack on the key base at Truk...
casualties. After this, the situation on Bougainville became largely static, as the Japanese focused primarily on subsistence, and the US forces chose...
towards the Genga River as part of a drive north to the Bonis Peninsula. On the peninsula, an enclave of Japanese troops had established itself after...