What division of the American armed forces fought the Imperial Japanese Army, also know as the "Dai-Nippon Teikoku Rikugun", or "Army of the Greater Japanese Empire", at Bougainville during World War Two?
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Battle of Hellzapoppin Ridge and Hill 600A The Battle of Hellzapoppin Ridge and Hill 600A was a series of engagements fought in mid-December 1943 on Bougainville between forces of the United States Marine Corps and the Imperial Japanese Army. Although minor in terms of casualties and in comparison to other battles in the campaign, the battle was the last significant action undertaken by the 3rd Marine Division on the island before they were replaced by United States Army soldiers from XIV Corps. It resulted in the capture of the two positions by the Marines with the support of artillery and aircraft, and the withdrawal of the Japanese forces as the American perimeter, which had been established around Torokina, was expanded towards the Torokina River.
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Imperial Japanese Army The Imperial Japanese Army (IJA; 大日本帝國陸軍 "Dai-Nippon Teikoku Rikugun"; "Army of the Greater Japanese Empire") was the official ground-based armed force of the Empire of Japan from 1868 to 1945. It was controlled by the Imperial Japanese Army General Staff Office and the Ministry of War, both of which were nominally subordinate to the Emperor of Japan as supreme commander of the army and the navy. Later an Inspectorate General of Aviation became the third agency with oversight of the army. During wartime or national emergencies, the nominal command functions of the emperor would be centralized in an Imperial General Headquarters (IGHQ), an ad-hoc body consisting of the chief and vice chief of the Army General Staff, the Minister of War, the chief and vice chief of the Naval General Staff, the Inspector General of Aviation, and the Inspector General of Military Training.
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Battle of Camotes Islands The Battle of Camotes Islands in the Pacific campaign of World War II was the amphibious invasion of the Poro Island in the Philippines by United States forces, who fought against the Imperial Japanese Army in the Philippines from 17 October - 26 December 1944. The operation was a small part of the Philippines campaign of 1944–45 for the recapture and liberation of the entire Philippine Archipelago and to end almost three years of Japanese occupation.
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Battle of Borneo (1941–42) The Battle of Borneo was a successful campaign by Japanese Imperial forces for control of Borneo island and concentrated mainly on the subjugation of the Kingdom of Sarawak, Brunei, North Borneo, and the western part of Kalimantan that was part of the Dutch East Indies. The Japanese main unit for this mission was the 35th Infantry Brigade led by Major-General Kiyotake Kawaguchi.
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Battle of Sunda Strait The Battle of Sunda Strait was a naval battle which occurred during World War II in the Sunda Strait between the islands of Java, and Sumatra. On the night of 28 February – 1 March 1942, the Australian light cruiser HMAS "Perth" and the American heavy cruiser USS "Houston" faced a major Imperial Japanese Navy (IJN) task force. After a fierce battle of several hours duration, both Allied ships were sunk. Five Japanese ships were sunk, three of which by friendly fire.
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Battle of Slater's Knoll The Battle of Slater's Knoll (28 March – 6 April 1945) was a battle during the Second World War fought between Australian and Japanese forces on Bougainville Island. Part of the Bougainville campaign, the battle occurred as a force of about 3,300 Japanese from the Japanese 6th Division supported by a sizeable concentration of artillery launched a counterattack against the main Australian offensive which had been pushing south towards Buin, concentrating their attacks on Slater's Knoll near the Puriata River. The Australian troops belonged to the 7th Brigade, with the 25th Infantry Battalion being the most heavily engaged, although the 9th Infantry Battalion and the 61st Infantry Battalion also took part in the fighting.
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Tsutomu Akinaga Tsutomu Akinaga (秋永力 , Akinaga Tsutomu , 20 November 1894 – 26 December 1978) was a general in the Imperial Japanese Army, commanding the Japanese ground forces on Bougainville of 1945 in the closing months of the war.
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216th Division (Imperial Japanese Army) The 216th Division (第216師団 , Dai-nihyakujūroku Shidan ) was an infantry division of the Imperial Japanese Army. Its call sign was the Hiei 10251 division (比叡 10251 兵団 , Hiei 10251 Heidan ) , after Mount Hiei. It was formed on 2 April 1945 in Kyoto as a triangular division. It was one of a batch of eight divisions composed of the 201st, 202nd, 205th, 206th, 209th, 212th, 214th and 216th Divisions created as part of the reaction to the Battle of Okinawa.
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Battle of Davao The Battle of Davao was fought by Allied forces during World War II. It contained American and Philippine Commonwealth troops including locally organized guerrillas against the Japanese from May 3 to 18, 1945 at the city of Davao and its vicinity in the island of Mindanao in the Philippine Archipelago. It is part of Operation VICTOR V, an offensive operation against Japanese forces in Mindanao, and part of the campaign for the liberation of the Philippines during World War II. The battle was the decisive engagement of the Mindanao Campaign.
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Twenty-First Army (Japan) The Japanese 21st Army (第21軍 , Dai-nijyūichi gun ) was an army of the Imperial Japanese Army during the Second Sino-Japanese War.
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Battle of the Visayas The Battle of the Visayas was fought by U.S. forces and Filipino guerrillas against the Japanese from 18 March – 30 July 1945, in a series of actions officially designated as Operations Victor I and II, and part of the campaign for the liberation of the Philippines during World War II. The battle was waged to complete the recapture of the central portions south of the archipelago and secure them from remaining Japanese forces.
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Battle of Midway The Battle of Midway was a decisive naval battle in the Pacific Theater of World War II which occurred between 4 and 7 June 1942, only six months after Japan's attack on Pearl Harbor and one month after the Battle of the Coral Sea. The United States Navy under Admirals Chester Nimitz, Frank Jack Fletcher, and Raymond A. Spruance defeated an attacking fleet of the Imperial Japanese Navy under Admirals Isoroku Yamamoto, Chuichi Nagumo, and Nobutake Kondo near Midway Atoll, inflicting devastating damage on the Japanese fleet that proved irreparable. Military historian John Keegan called it "the most stunning and decisive blow in the history of naval warfare."
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Battle of Wakde The Battle of Wakde "(Operation Straight Line)" was part of the New Guinea campaign of World War II. It was fought between the United States and Japan from 15 May 1944 to 18 May 1944.
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Battle of Vella Lavella (land) The Battle of Vella Lavella was fought from 15 August – 6 October 1943 between Japan and the Allied forces from New Zealand and the United States. Vella Lavella, an island located in the Solomon Islands, had been occupied by Japanese forces early during the war in the Pacific. Following the fighting around Munda Point, the Allies recaptured the island in late 1943, following a decision to bypass a large concentration of Japanese troops of Kolombangara.
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Battle of Tinian The Battle of Tinian was a battle of the Pacific campaign of World War II, fought on the island of Tinian in the Mariana Islands from 24 July until 1 August 1944. The 9,000-man Japanese garrison was eliminated, and the island joined Saipan and Guam as a base for the Twentieth Air Force.
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23rd Infantry Regiment (Imperial Japanese Army) The 23rd Infantry Regiment was an infantry regiment in the Imperial Japanese Army. The regiment was attached to the 6th Infantry Brigade of the 6th Division and participated during the Second Sino-Japanese War. The regiment fought in the later stages of World War II, assigned to the Japanese Seventeenth Army at Bougainville Island in the Solomon Islands.
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Battle of Tsimba Ridge The Battle of Tsimba Ridge was an engagement of the Second World War involving Australian and Japanese forces. Part of the wider Bougainville Campaign of the Pacific theatre, the battle occurred in the northern sector of Bougainville Island between 17 January and 9 February 1945, when the lead battalion of the Australian 11th Brigade—the 31st/51st Infantry Battalion—advanced towards the Genga River as part of a drive north to the Bonis Peninsula.
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Philippines Campaign (1944–1945) The Philippines campaign, the Battle of the Philippines or the Liberation of the Philippines (Filipino: "Kampanya ng Pilipinas", "Labanan sa Pilipinas" & Liberasyon "sa Pilipinas"), (Operation Musketeer I, II, and III) (Filipino: Operasyon "Mosketero I", "II", "at" "III"), was the American and Filipino campaign to defeat and expel the Imperial Japanese forces occupying the Philippines during World War II. The Japanese Army overran all of the Philippines during the first half of 1942. The liberation of the Philippines commenced with amphibious landings on the eastern Philippine island of Leyte on October 20, 1944. United States and Philippine Commonwealth military forces were progressing in liberating territory and islands when the Japanese forces in the Philippines were ordered to surrender by Tokyo on August 15, 1945, after the dropping of the atomic bombs on mainland Japan and the Soviet invasion of Manchuria.
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Battle of Kokoda The Battle of Kokoda consisted of two engagements fought in late July – early August 1942. Forming part of the Kokoda Track campaign of the Second World War, the battle involved military forces from Australia, supported by the United States, fighting against Japanese troops from Major General Tomitaro Horii's South Seas Detachment who had landed around Buna and Gona in Papua mid-July 1942, with the intent of capturing Port Moresby to the south via the overland route.
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Battle of Rabaul (1942) The Battle of Rabaul, also known by the Japanese as Operation R, was fought on the island of New Britain in the Australian Territory of New Guinea, in January and February 1942. It was a strategically significant defeat of Allied forces by Japan in the Pacific campaign of World War II, with the Japanese invasion force quickly overwhelming the small Australian garrison, the majority of which was either killed or captured. Hostilities on the neighbouring island of New Ireland are also usually considered to be part of the same battle. Rabaul was important because of its proximity to the Japanese territory of the Caroline Islands, site of a major Imperial Japanese Navy base on Truk.
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Battle of Balikpapan (1945) The Battle of Balikpapan was the concluding stage of the Operation Oboe. The landings took place on 1 July 1945. The Australian 7th Division, composed of the 18th, 21st and 25th Infantry Brigades, with KNIL troops, made an amphibious landing, codenamed Operation Oboe Two a few miles north of Balikpapan, on the island of Borneo. The landing had been preceded by heavy bombing and shelling by Australian and US air and naval forces. The Japanese were outnumbered and outgunned, but like the other battles of the Pacific War, many of them fought to the death.
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Courtney Whitney Major General Courtney Whitney (May 20, 1897 - March 21, 1969) was an American lawyer and Army commander during World War II who later served as a senior official during the occupation of Japan. He played a major role in the liberalization of Japanese government, society, and economy during the Occupation of Japan, 1945 to 1951.