battle, major, interwar and Second World War
Bougainville Campaign
Bougainville Campaign was a battle fought on 1 November 1943 at Bougainville Island, in what is now Papua New Guinea; it lasted 22 months. It was part of the Pacific War, which ran from 1941 to 1945. The recorded result: Allied victory. Recorded strength: 144,000 American troops; 30,000 Australian troops; 728 aircraft against 45,000–65,000 troops; 154 aircraft.
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Where it sits in the Pacific War
Record
| Date | 1 November 1943 to 21 August 1945 | |
|---|---|---|
| Place | Bougainville Island, Papua New Guinea 6.020S, 155.100E | |
| Kind | Battle, interwar and Second World War | |
| Strength | 144,000 American troops; 30,000 Australian troops; 728 aircraft | 45,000–65,000 troops; 154 aircraft |
| Casualties and losses | United States: 727 dead; Australia: 516 dead | 18,500–21,500 deadFigure includes deaths from all causes: combat, disease, starvation, and accident. The Australians counted 21,000 to 23,500 Japanese survivors on Bougainville Island |
| Commanders |
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The ground today


The recorded site stands at about 783 m; within 10.0 km the ground runs from 0 to 1,355 m, 1,355 m of relief, mountainous country and today it is 99% tree cover.
Elevation from the Copernicus DEM GLO-30 (ESA, Airbus); land cover from ESA WorldCover 2021 (CC BY 4.0), within about 5 km of the recorded site. Computed, not recorded.Nearest engagements
- Landings at Cape Torokina 1943, 25 km S
- Battle of Empress Augusta Bay 1943, 43 km S
- Battle of Tsimba Ridge 1945, 57 km NW
- Battle of Porton Plantation 1945, 66 km NW
- Battle of Slater's Knoll 1945, 71 km S
In the same war
- Before: Naval Battle of Vella Lavella 6 October 1943
- After: Landings at Cape Torokina 3 November 1943
- All 101 engagements of Pacific War
Elsewhere in 1943
- Battle of Kursk Soviet Union
- Third Battle of Kharkov Ukraine
- Battle of the Dnieper Ukraine
- Battle of Tarawa Kiribati
- Battle of Kasserine Passe Tunisia
Bougainville Campaign is one of 2,997 engagements of the 20th century in the atlas and one of 54 in present-day Papua New Guinea.
Sources
Identity, coordinates, dates and the war from Wikidata Q704785, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Bougainville campaign, revision 1375773834, read 2026-11-14, licensed CC BY-SA 4.0; the article's text is not reproduced here. Present-day country and state from Natural Earth. Dates before 1582 follow the Julian calendar as recorded.