Battle of Sio 1943
Recorded location from Wikidata; battle sites are often approximate.
Key facts
| Date | 5 December 1943 – 1 March 1944 | Wikidata |
|---|---|---|
| Year | 1943 | Wikidata P580 (start time) |
| Era | World War II era (1939–1945) | derived from year |
| Location | Papua New Guinea | Natural Earth (modern borders) |
| Continent | Oceania | Natural Earth |
| War / conflict | World War II | Wikidata P361 |
| Participants | United States | Wikidata P710 |
| Coordinates | -5.9550, 147.3700 | Wikidata P625 |
About the battle
The Battle of Sio, fought between December 1943 and March 1944, was the break-out and pursuit phase of General Douglas MacArthur's Huon Peninsula campaign, part of the New Guinea campaign of World War II.
After the defeat of the Japanese in the Battle of Sattelberg, Australian Army forces broke through the Japanese positions around Finschhafen. Constant pressure from United States Navy PT boats, Australian land forces and Allied aircraft brought the Japanese logistical system to the brink of collapse, resulting in disease, malnutrition, and privation for the Japanese soldiers. Meanwhile, the Allied supply system grappled with the problems of terrain and climate, particularly inclement weather and rough monsoonal seas that hampered and occasionally prevented delivery of supplies by sea.
Australian and Papuan troops advanced along the coast of the Huon Peninsula, using infantry, tanks, and air strikes against the Japanese positions, which were generally sited at creek crossings in the jungle. The advancing infantry kept strictly within range of the supporting artillery, which was liberally employed in the early stages of the operation.
Text adapted from the Wikipedia article Battle of Sio (revision 1370589428), licensed under CC BY-SA 4.0. Changes: excerpted from the article lead section; shortened by selecting paragraphs and trimming at a sentence boundary; formatting and citations removed. No text added.
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Browse more: battles in Papua New Guinea · Oceania · World War II era battles