Bougainville Campaign

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Bougainville campaign (1943–45) Part of the Pacific Theater of World War II United States Army soldiers hunt Japanese infiltrators on Bougainville in March 1944. Date November 1, 1943 – August 21, 1945 Location 6°8′S 155°18′E / -6.133, 155.3Coordinates: 6°8′S 155°18′E / -6.133, 155.3 Bougainville, Territory of New Guinea (geographically part of the Solomon Islands) Result Allied victory Belligerents  United States  Australia  New Zealand Colony of Fiji Empire of Japan Commanders Roy Geiger Theodore Wilkinson Oscar Griswold Stanley Savige Harukichi Hyakutake Masatane Kanda Strength 126,000 troops,[1] 728 aircraft[2] 42,000–45,000 troops,[3] 154 aircraft[2] Casualties and losses 1,243 dead[4] 18,500–21,500 dead[5]

v • d • e Bougainville Campaign Cape Torokina – Empress Augusta Bay – Koromokina – Piva Trail – Coconut Grove – Piva Forks – Hellzapoppin & Hill 600A – Counterattack – Pearl Ridge – Genga River – Slater's Knoll – Hongorai River

v • d • e Solomon Islands campaign 1st Tulagi – Guadalcanal – Blackett Strait – Cartwheel – Vengeance – New Georgia – Kula Gulf – Kolombangara – Vella Gulf – Horaniu – Vella Lavella – Naval Vella Lavella – Treasury Is. – Choiseul – Bougainville – Rabaul air raids – Cape St. George – Green Is.

v • d • e New Guinea campaign Rabaul (land battle) – Rabaul (1942 air raids) – Mo – Coral Sea – Kokoda Track – Milne Bay – Buna-Gona – Wau – Bismarck Sea – Salamaua-Lae – Cartwheel – Wewak raid – Finisterres – Huon Peninsula – Bougainville – Rabaul (1943 air raids) – New Britain – Admiralties – Western New Guinea

Hill 260 being shelled by Americal Division artillery, on March 19, 1944

The Bougainville campaign was a campaign of World War II that occurred from November 1, 1943 to August 21, 1945, on and around Bougainville Island in the South Pacific between the Empire of Japan and Allied forces. Bougainville, at that time, was part of the Australian territory of New Guinea, although geographically part of the Solomon Islands chain. The Bougainville campaign was, therefore, part of both the Allied New Guinea and Solomon Islands campaigns. Bougainville was occupied in 1942 by Japanese forces, who constructed naval air bases at Buka in the north and Buin in the south, as well as a naval ship base in the nearby Shortland Islands. The Japanese bases provided security for their major base at Rabaul, New Britain and supported their forces operating at other locations in the Solomon Islands.

[edit] Overview

As part of the latter stages of Operation Cartwheel, Allied forces intended to establish air bases on Bougainville to assist in the isolation and neutralization of Rabaul. Thus, in November 1943 United States Marine forces landed at Cape Torokina on Bougainville and established a beachhead within which the Allies constructed three airfields. The Marines were later replaced by U.S. Army soldiers in January 1944. The U.S. Army was replaced by Australian Militia troops in October 1944. The campaign ended with the surrender of Japanese forces in August 1945.

[edit] Campaign

[edit] November 1943 – November 1944

January 1944: U.S. Marine Raiders pose in front of a captured Japanese dugout at Cape Torokina on Bougainville. Allied operations to retake Bougainville from the Japanese 17th Army began with Landings at Cape Torokina by the U.S. Marine 3rd Division on November 1, 1943. The Allies intended to establish a beachhead around Cape Torokina, within which an airfield would be built. Allied forces did not plan, at this time, to try to capture the entire island of Bougainville from Japanese forces. An attempt by the Imperial Japanese Navy to attack the U.S. landing forces was defeated by the US Navy in the Battle of Empress Augusta Bay, on 1 November and 2 November . A subsequent attempt by Japanese land forces to attack the Allied beachhead was defeated in the Battle of Koromokina Lagoon.

Protracted and often bitter jungle warfare followed, with many casualties resulting from malaria and other tropical diseases. U.S. Marine operations to expand the Allied beachhead resulted in the Battle for Piva Trail, Battle of the Coconut Grove, Battle of Piva Forks, and the Battle of Hellzapoppin Ridge and Hill 600A. The Marines were eventually replaced by the U.S. Army's Americal Division and other Army units.

The U.S. Army defended the beachhead against a major Japanese counterattack from 9 March 1944 to 17 March 1944, at Hill 700, Cannon Hill, and Hill 260. The counterattack was defeated with heavy losses for the Japanese army, which then withdrew the majority of its force into the deep interior and to the north and south ends of Bougainville.

The Japanese, isolated and cut off from outside assistance, primarily concentrated on survival, including the development of farms throughout the island. The Americans were reinforced by the 93rd Infantry Division, the first African American infantry unit to see action in World War II. The Allies concentrated on constructing multiple airfields in the beachhead, from which they conducted fighter and bomber operations over Rabaul, Kavieng and other Japanese-held bases in the South Pacific area. Air support over Bougainville was provided largely by the Royal New Zealand Air Force, the US Marine Corps aviation squadrons, and the USAAF, under the control of an organization called "AIRSOLS" - Air Solomons - Vice Admiral Aubrey Fitch, US Navy.

[edit] November 1944 – August 1945

A Fijian medical orderly administers an emergency plasma transfusion during heavy fighting on Bougainville.

Between October and December 1944, the U.S. ground forces handed over operations on the island to the main body of the Australian II Corps, a Militia formation. The Australian 3rd Division and the 11th Brigade were on Bougainville, reinforced by the Fiji Infantry Regiment. The Australian 23rd Brigade garrisoned neighbouring islands. The second phase of the Allied campaign developed into three separate drives: in the north, it was planned that Japanese forces would be forced into the narrow Bonis Peninsula and contained; in the centre the seizure of Pearl Ridge would give the Australians control of the east-west thoroughfares and protection against further counterattacks, while also opening the way for a drive to the east coast; and the main campaign in the south, where the bulk of the Japanese forces were concentrated.

April 5, 1945: The view forward of Australian positions on Slater's Knoll, Bougainville; the soldier in the foreground is aiming an Owen submachinegun.

Major battles for the Australians included the Battle of Genga River (in the north) and the Battles of Slater's Knoll and Hongorai River (in the south).

Corporal Sefanaia Sukanaivalu of Fiji was posthumously awarded a Victoria Cross (VC) for his bravery at Mawaraka on June 23, 1944. During 1945, Corporal Reg Rattey (at Slater's Knoll) and Private Frank Partridge (at Ratsua) won Australia's last VCs of World War II and the only VCs awarded to militia soldiers.

Combat operations on Bougainville ended with the surrender of Japanese forces on Bougainville on 21 August 1945. The Empire surrendered in Tokyo Bay on 2 September 1945.

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Bougainville campaign (1943-45)

[edit] Notes

[edit] References

[edit] External links

• Australian Department of Veteran's Affairs. "In the Shadows: Bougainville". Retrieved on October 20, 2006.
• Craven, Wesley Frank; James Lea Cate. "Vol. IV, The Pacific: Guadalcanal to Saipan, August 1942 to July 1944". The Army Air Forces in World War II. U.S. Office of Air Force History. Retrieved on October 20, 2006.
• Chapin, John C. (1997). "TOP OF THE LADDER: Marine Operations in the Northern Solomons". World War II Commemorative series 1. Marine Corps History and Museums Division. Retrieved on August 30, 2006. Also available at: [1]
• Fuquea, David C. (1997). "Bougainville: The Amphibious Assault Enters Maturity". Naval War College Review, Winter 1997, Vol. L, No. 1 418. Retrieved on October 20, 2006.
• Hoffman, Jon T. (1995). "Bougainville" (brochure). FROM MAKIN TO BOUGAINVILLE: Marine Raiders in the Pacific War. Marine Corps Historical Center. Retrieved on 2006-11-21.
• James, Karl (2005). "The Final Campaigns: Bougainville 1944–1945" (PhD thesis). University of Wollongong. Retrieved on 2006-12-12.
• Lofgren, Stephen J.. "Northern Solomons". The U.S. Army Campaigns of World War II. Retrieved on October 18, 2006.
• Mersky, Peter B. (1993). "Time of the Aces: Marine Pilots in the Solomons, 1942–1944". Marines in World War II Commemorative Series. History and Museums Division, Headquarters, U.S. Marine Corps. Retrieved on October 20, 2006.
• Miller, John, Jr. (1959). "CARTWHEEL: The Reduction of Rabaul". United States Army in World War II: The War in the Pacific 418. Office of the Chief of Military History, U.S. Department of the Army. Retrieved on October 20, 2006.
• Rentz, John M. (1946). "Bougainville and the Northern Solomons". USMC Historical Monograph. Historical Branch, Headquarters, U.S. Marine Corps. Retrieved on October 18, 2006.
• Shaw, Henry I.; Douglas T. Kane (1963). "Volume II: Isolation of Rabaul". History of U.S. Marine Corps Operations in World War II. Retrieved on 2006-10-18.
• U.S. Army Center of Military History. "Japanese Operations in the Southwest Pacific Area, Volume II - Part I". Reports of General MacArthur. Retrieved on 2006-12-08.- Translation of the official record by the Japanese Demobilization Bureaux detailing the Imperial Japanese Army and Navy's participation in the Southwest Pacific area of the Pacific War.

[edit] Further reading

• Hungerford, T.A.G.. (1952). The Ridge and the River. Sydney: Angus & Roberston. Republished by Penguin, 1992; ISBN 0-143-00174-4.