Borneo campaign

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The Borneo campaign or Second Battle of Borneo was the last major Allied campaign in the South West Pacific Area during World War II to liberate Japanese-held British Borneo and Dutch Borneo. Designated collectively as Operation Oboe, a series of amphibious assaults between 1 May and 21 July 1945 were conducted by the Australian I Corps, under Lieutenant-General Leslie Morshead, against Imperial Japanese forces who had been occupying the island since late 1941 – early 1942. The main Japanese formation on the island was the Thirty-Seventh Army under Lieutenant-General Masao Baba, while the naval garrison was commanded by Vice-Admiral Michiaki Kamada. The Australian ground forces were supported by US and other Allied air and naval forces, with the US providing the bulk of the shipping and logistic support necessary to conduct the operation. The campaign was initially planned to involve six stages, but eventually landings were undertaken at four locations: Tarakan, Labuan, North Borneo and Balikpapan. Guerrilla operations were also carried out by Dayak tribesmen and small numbers of Allied personnel in the interior of the island. While major combat operations were concluded by mid-July, localised fighting continued throughout Borneo until the end of the war in August. Initially intended to secure vital airfields and port facilities to support future operations, preparatory bombardment resulted in heavy damage to the island's infrastructure, including its oil production facilities. As a result, the strategic benefits the Allies gained from the campaign were negligible.

1945  WikimediaWikidata
military campaign, Michiaki Kamada, Masao Baba, Thomas Cassin Kinkaid, Empire of Japan, Leslie Morshead, Douglas MacArthur, AustraliaUnited KingdomNetherlandsUnited States

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1945-05-01T00:00:00Z
1945-08-15T00:00:00Z
1945 Borneo campaign
1365-01-01T00:00:00Z
1365-01-01T00:00:00Z
1861-06-19T00:00:00Z
1862-03-02T00:00:00Z
1861 — 1862 Battle of Mount Pamaton
1905-06-13T00:00:00Z
1906-01-01T00:00:00Z
1941-12-16T00:00:00Z
1942-04-01T00:00:00Z
1941 — 1942 Battle of Borneo
1769-01-01T00:00:00Z
1788-01-01T00:00:00Z
1769 — 1788 Twenty Years' War
1859-01-01T00:00:00Z
1863-01-01T00:00:00Z
1859 — 1863 Banjarmasin War
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2-43 Battalion mortar crew during the Battle of Beaufort2-43 Battalion mortar crew during the Battle of Beaufort
Lockheed PV-1 Lockheed PV-1 "Ventura" Patrol Bombers
Brunei invasion, June 1945.Brunei invasion, June 1945.
QF 4 inch MK XVI gun HMAS Kanimbla 1945 AWM 108926QF 4 inch MK XVI gun HMAS Kanimbla 1945 AWM 108926
Invasion of Brunei Bay, Borneo, June 1945Invasion of Brunei Bay, Borneo, June 1945
Brunei, BorneoBrunei, Borneo
Operation Semut personnel (AWM image P01806.010)Operation Semut personnel (AWM image P01806.010)
Borneo Operation, June 1945Borneo Operation, June 1945
Brunei invasion, June 1945.Brunei invasion, June 1945.
Lockheed PV-1 Lockheed PV-1 "Ventura" Patrol Bombers
    TypeSubtypeDateDescriptionNotesSource
    eventarmed conflict1365Majapahit invasions of BorneoMajapahit, invasionWikidata
    eventarmed conflict1861Battle of Mount Pamatonbattle, Dutch Empire, Sultanate of BanjarWikidata
    eventarmed conflict1905Expedition to South-Celebesmilitary expedition, Carel Frederik Goldman, Carel Hendrik Eilers, Dirk MerensWikidata
    eventarmed conflict1941Battle of BorneoinvasionWikidata
    eventarmed conflict1945Borneo campaignUnited States, Netherlands, United Kingdom, Australia, Douglas MacArthur, Thomas Cassin Kinkaid, Masao Baba, military campaign, Leslie Morshead, Empire of Japan, Michiaki KamadaWikidata
    eventwar1769Twenty Years' Warwar, Sultanate of Sulu, Bruneian Sultanate, Kingdom of SpainWikidata
    eventwar1859Banjarmasin Warwar, Dutch Empire, Sultanate of BanjarWikidata
    commonsimage2-43 Battalion mortar crew during the Battle of Beaufort Commons
    commonsimageLockheed PV-1 "Ventura" Patrol Bombers Commons
    commonsimageBrunei invasion, June 1945. Commons
    commonsimageQF 4 inch MK XVI gun HMAS Kanimbla 1945 AWM 108926 Commons
    commonsimageInvasion of Brunei Bay, Borneo, June 1945 Commons
    commonsimageBrunei, Borneo Commons
    commonsimageOperation Semut personnel (AWM image P01806.010) Commons
    commonsimageBorneo Operation, June 1945 Commons
    commonsimageBrunei invasion, June 1945. Commons
    commonsimageLockheed PV-1 "Ventura" Patrol Bombers Commons