HMAS Canberra (D33) underway off Tulagi, circa 7 August 1942

The South West Pacific theatre, during

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing ...

, was a major

theatre Theatre or theater is a collaborative form of performing art that uses live performers, usually actors or actresses, to present the experience of a real or imagined event before a live audience in a specific place, often a stage. The perform ...

of the war between the Allies and the Axis. It included the

Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...

, the Dutch East Indies (except for Sumatra),

Borneo Borneo (; id, Kalimantan) is the third-largest island in the world and the largest in Asia. At the geographic centre of Maritime Southeast Asia, in relation to major Indonesian islands, it is located north of Java, west of Sulawesi, and ea ...

, Australia and its mandate

Territory of New Guinea The Territory of New Guinea was an Australian-administered United Nations trust territory on the island of New Guinea from 1914 until 1975. In 1949, the Territory and the Territory of Papua were established in an administrative union by the na ...

(including the Bismarck Archipelago) and the western part of the

Solomon Islands Solomon Islands is an island country consisting of six major islands and over 900 smaller islands in Oceania, to the east of Papua New Guinea and north-west of Vanuatu. It has a land area of , and a population of approx. 700,000. Its capit ...

. This area was defined by the Allied powers' South West Pacific Area (SWPA) command. In the South West Pacific theatre, Japanese forces fought primarily against the forces of the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...

and Australia.

New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...

, the

Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...

(mainly the Dutch East Indies), the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the European mainland, continental mainland. It comprises England, Scotlan ...

, and other Allied nations also contributed forces. The South Pacific became a major theatre of the war following the Japanese attack on Pearl Harbor in December 1941. Initially, US war plans called for a counteroffensive across the Central Pacific, but this was disrupted by the loss of battleships at Pearl Harbor. During the First South Pacific Campaign, US forces sought to establish a defensive perimeter against additional Japanese attacks. This was followed by the Second South Pacific Campaign, which began with the

Battle of Guadalcanal The Guadalcanal campaign, also known as the Battle of Guadalcanal and codenamed Operation Watchtower by American forces, was a military campaign fought between 7 August 1942 and 9 February 1943 on and around the island of Guadalcanal in the ...

Allied command

The U.S.

General A general officer is an officer of high rank in the armies, and in some nations' air forces, space forces, and marines or naval infantry. In some usages the term "general officer" refers to a rank above colonel."general, adj. and n.". OED ...

Douglas MacArthur had been in command of the American forces in the Philippines in what was to become the South West Pacific theatre, but was then part of a larger theatre that encompassed the South West Pacific, the Southeast Asian mainland (including Indochina and Malaya) and the North of Australia, under the short lived

American-British-Dutch-Australian Command The American-British-Dutch-Australian (ABDA) Command, or ABDACOM, was a short-lived, supreme command for all Allies of World War II, Allied forces in South East Asia in early 1942, during the Pacific War in World War II. The command consists of ...

(ABDACOM). Shortly after the collapse of ABDACOM, supreme command of the South West Pacific theatre passed to MacArthur who was appointed Supreme Commander,

South West Pacific Area South West Pacific Area (SWPA) was the name given to the Allied supreme military command in the South West Pacific Theatre of World War II. It was one of four major Allied commands in the Pacific War. SWPA included the Philippines, Borneo, the ...

on 30 March 1942. However, MacArthur preferred to use the title "Commander-in-Chief." The other major theatre in the Pacific,

Pacific Ocean Areas Pacific Ocean Areas was a major Allied military command in the Pacific Ocean theater of World War II. It was one of four major Allied commands during the Pacific War, and one of three United States commands in the Asiatic-Pacific Theater. Admir ...

, was commanded by U.S. Admiral

Chester Nimitz Chester William Nimitz (; February 24, 1885 – February 20, 1966) was a fleet admiral in the United States Navy. He played a major role in the naval history of World War II as Commander in Chief, US Pacific Fleet, and Commander in C ...

, who was also Commander-in-Chief Pacific Fleet. Both MacArthur and Nimitz were overseen by the US Joint Chiefs and the British-U.S. Combined Chiefs of Staff.

Japanese command

Most

Japanese Japanese may refer to: * Something from or related to Japan, an island country in East Asia * Japanese language, spoken mainly in Japan * Japanese people, the ethnic group that identifies with Japan through ancestry or culture ** Japanese diaspor ...

forces in the theatre were part of the , which was formed on November 6, 1941, under General

Hisaichi Terauchi Count was a '' Gensui'' (or field marshal) in the Imperial Japanese Army, commander of the Southern Expeditionary Army Group during World War II. Biography Early military career Terauchi was born in Tokyo Prefecture, and was the eldest son of ...

(also known as Count Terauchi). The ''Nanpo gun'' was responsible for

Imperial Japanese Army The 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 the Army, both of which were nominally subordinate to the Emperor o ...

(IJA) ground and air units in

Southeast Asia Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical south-eastern region of Asia, consisting of the regions that are situated south of mainlan ...

and the South Pacific. The of the

Imperial Japanese Navy The Imperial Japanese Navy (IJN; Kyūjitai: Shinjitai: ' 'Navy of the Greater Japanese Empire', or ''Nippon Kaigun'', 'Japanese Navy') was the navy of the Empire of Japan from 1868 to 1945, when it was dissolved following Japan's surrend ...

(IJN) was responsible for all Japanese warships, naval aviation units and

marine infantry Marines, or naval infantry, are typically a military force trained to operate in littoral zones in support of naval operations. Historically, tasks undertaken by marines have included helping maintain discipline and order aboard the ship (refl ...

units. As the Japanese military did not formally utilize joint/combined staff at the operational level, the command structures/geographical areas of operations of the ''Nanpo gun'' and ''Rengō Kantai'' overlapped each other and those of the Allies.

Major campaigns

* Battle of the Philippines (1941–1942) **

Battle of Bataan The Battle of Bataan ( tl, Labanan sa Bataan; January 7 – April 9, 1942) was fought by the United States and the Philippine Commonwealth against Japan during World War II. The battle represented the most intense phase of the Japanese inva ...

** Battle of Corregidor * Dutch East Indies campaign, 1941–1942 ** Battle of Badung Strait, 19–20 February 1942 **

Battle of the Java Sea The Battle of the Java Sea ( id, Pertempuran Laut Jawa, ja, スラバヤ沖海戦, Surabaya oki kaisen, Surabaya open-sea battle, Javanese : ꦥꦼꦫꦁꦱꦼꦒꦫꦗꦮ, romanized: ''Perang Segara Jawa'') was a decisive naval battle o ...

, 27 February 1942 **

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 , American heavy cruiser , ...

, 28 February – 1 March 1942 ** Second Battle of the Java Sea, 1 March 1942 *

Solomon Islands campaign The Solomon Islands campaign was a major campaign of the Pacific War of World War II. The campaign began with Japanese landings and occupation of several areas in the British Solomon Islands and Bougainville, in the Territory of New Guinea, ...

, 1943–1945 **

New Georgia Campaign The New Georgia campaign was a series of land and naval battles of the Pacific campaign of World War II between Allied forces and the Empire of Japan. It was part of Operation Cartwheel, the Allied strategy in the South Pacific to isolate th ...

, June–August 1943 **

Battle of Kula Gulf The naval Battle of Kula Gulf (Japanese: クラ湾夜戦) took place in the early hours of 6 July 1943 during World War II. The battle involved United States and Japanese ships off the eastern coast of Kolombangara in the Solomon Islands. It took ...

, 6 July 1943. **

Battle of Kolombangara The Battle of Kolombangara (Japanese: コロンバンガラ島沖海戦) (also known as the Second Battle of Kula Gulf) was a naval battle of the Pacific campaign of World War II, fought on the night of 12/13 July 1943, off the northeastern coas ...

, 13 July 1943 ** Battle of Vella Gulf, 6–7 August 1943 ** Naval Battle of Vella Lavella, 6–7 October 1943 ** Battle of the Treasury Islands, 27 October-12 November 1943 **

Battle of Empress Augusta Bay The Battle of Empress Augusta Bay, on 1–2 November 1943 – also known as the Battle of Gazelle Bay, Operation Cherry Blossom, and in Japanese sources as the Sea Battle off Bougainville Island (ブーゲンビル島沖海戦) – was a naval ba ...

, 2 November 1943 ** Battle of Cape St. George, 25 November 1943 **

Bougainville Campaign The Bougainville campaign was a series of land and naval battles of the Pacific campaign of World War II between Allied forces and the Empire of Japan, named after the island of Bougainville. It was part of Operation Cartwheel, the Allie ...

, November 1943 – August 1945 * New Guinea campaign, 1942–1945 ** Battle of Rabaul, January–February 1942 **

Invasion of Salamaua–Lae The invasion of Salamaua–Lae (8–13 March 1942), called ''Operation SR'' by the Japanese, was an operation by Imperial Japanese forces to occupy the Salamaua– Lae area in the Territory of New Guinea during the Pacific campaign of World War ...

, March 1942 ** Battle of the Coral Sea, 4–8 May 1942 ** Invasion of Buna-Gona, July 1942 **

Kokoda Track campaign The Kokoda Track campaign or Kokoda Trail campaign was part of the Pacific War of World War II. The campaign consisted of a series of battles fought between July and November 1942 in what was then the Australian Territory of Papua. It was primar ...

, July–November 1942 **

Battle of Milne Bay The Battle of Milne Bay (25 August – 7 September 1942), also known as Operation RE or the Battle of Rabi (ラビの戦い) by the Japanese, was a battle of the Pacific campaign of World War II. Japanese marines, known as ''Kaigun Tokub ...

, August–September 1942 **

Battle of Goodenough Island The Battle of Goodenough Island (22–27 October 1942), also known as Operation Drake, was a battle of the Pacific campaign of World War II. The Allies landed on Goodenough Island, Papua, and clashed with a Japanese ''Kaigun Rikusentai' ...

, October 1942 **

Battle of Buna-Gona A battle is an occurrence of combat in warfare between opposing military units of any number or size. A war usually consists of multiple battles. In general, a battle is a military engagement that is well defined in duration, area, and for ...

, November 1942 – January 1943 **

Battle of Wau The Battle of Wau, 29 January – 4 February 1943, was a battle in the New Guinea campaign of World War II. Forces of the Empire of Japan sailed from Rabaul and crossed the Solomon Sea and, despite Allied air attacks, successfully reached Lae, ...

, January 1943 **

Battle of the Bismarck Sea The Battle of the Bismarck Sea (2–4 March 1943) took place in the South West Pacific Area (SWPA) during World War II when aircraft of the U.S. Fifth Air Force and the Royal Australian Air Force (RAAF) attacked a Japanese convoy carrying troop ...

, 2 March 1943 ** Operation Chronicle, 1943 ** Landing at Nassau Bay, 1943 ** Salamaua-Lae campaign, April–September 1943 **

Finisterre Range campaign The Markham Valley, Ramu Valley and Finisterre Range campaigns were a series of battles within the broader New Guinea campaign of World War II. The campaigns began with an Allied offensive in the Ramu Valley, from 19 September 1943, and concl ...

, September 1943 – April 1944 **

Huon Peninsula campaign The Huon Peninsula campaign was a series of battles fought in north-eastern Papua New Guinea in 1943–1944 during the Second World War. The campaign formed the initial part of an offensive that the Allies launched in the Pacific in late 1943 ...

, September 1943 – March 1944 **

New Britain campaign The New Britain campaign was a World War II campaign fought between Allied and Imperial Japanese forces. The campaign was initiated by the Allies in late 1943 as part of a major offensive which aimed to neutralise the important Japanese base a ...

, 26 December 1943. **

Admiralty Islands campaign The Admiralty Islands campaign (Operation Brewer) was a series of battles in the New Guinea campaign of World War II in which the United States Army's 1st Cavalry Division took the Japanese-held Admiralty Islands. Acting on reports from ai ...

, 29 February 1944 ** Invasion of Hollandia and

landing at Aitape The Landing at Aitape (code-named Operation Persecution) was a battle of the Western New Guinea campaign of World War II. American and Allied forces undertook an amphibious landing on 22 April 1944 at Aitape on northern coast of Papua New Guine ...

, 22 April 1944 **

Battle of Biak The Battle of Biak was part of the Western New Guinea campaign of World War II, fought between the United States Army and the Imperial Japanese Army, Japanese Army from 27 May to 17 August 1944. Taking place on the island of Biak, in Geelvink Ba ...

, 27 May 1944 **

Battle of Noemfoor The Battle of Noemfoor was part of the New Guinea campaign of World War II. It took place on the island of Noemfoor, in Dutch New Guinea (now Papua, in Indonesia), between 2 July and 31 August 1944. During the battle, Allied forces landed on ...

, 2 July 1944 **

Battle of Morotai The Battle of Morotai, part of the Pacific War, began on 15 September 1944, and continued until the end of the war in August 1945. The fighting started when United States and Australian forces landed on the southwest corner of Morotai, a small isl ...

, 15 September 1944 ** Aitape-Wewak campaign, November 1944 * Battle of Timor, 1942–1943 * Philippines campaign (1944–1945) **

Battle of Leyte A battle is an occurrence of combat in warfare between opposing military units of any number or size. A war usually consists of multiple battles. In general, a battle is a military engagement that is well defined in duration, area, and force ...

, October–December 1944 ** Battle of Leyte Gulf, 23–26 October 1944 **

Battle of Mindoro The Battle of Mindoro ( Filipino: ''Labanan sa Mindoro'') was a battle in World War II between forces of the United States and Japan, in Mindoro Island in the central Philippines, from 13–16 December 1944, during the Philippines Campaign. Tr ...

, December 1944 ** Battle of Lingayen Gulf, January 1945 **

Battle of Luzon The Battle of Luzon ( tl, Labanan sa Luzon; ja, ルソン島の戦い; es, Batalla de Luzón) was a land battle of the Pacific Theater of Operations of World War II by the Allied forces of the U.S., its colony the Philippines, and allies agai ...

, January–August 1945 ** Battle of Manila, February–March 1945 ** Battle of Corregidor, February 1945 ** Invasion of Palawan, February–April 1945 ** Battle of the Visayas, March–July 1945 **

Battle of Mindanao The Battle of Mindanao ( Filipino: ''Labanan sa Mindanao;'' Cebuano: ''Gubat sa Mindanao;'' Japanese: ミンダナオの戦い) was fought by the Americans and allied Filipino guerrillas against the Japanese forces on the island of Mindanao i ...

, March–August 1945 ** Battle of Maguindanao, January–September 1945 * Borneo campaign, 1945 ** Battle of Tarakan, May–June 1945 **

Battle of North Borneo The Battle of North Borneo took place during the Second World War between Allied and Japanese forces. Part of the wider Borneo campaign of the Pacific War, it was fought between 10 June and 15 August 1945 in North Borneo (later known as Sa ...

, June–August 1945 ** Battle of Balikpapan, July 1945

Notes

References

* * * * *

Allied command

Japanese command

Major campaigns

See also

Notes

References

Further reading