page_title: Military history of Australia during World War II
section_title: Papuan campaign
hierarchical_section_title: Military history of Australia during World War II / War in the Pacific / Papuan campaign
caption_attribution_description: English: Papuan Campaign, 1942
context_page_description: Australia entered World War II on 3 September 1939, following the government's acceptance of the United Kingdom's declaration of war on Nazi Germany. Australia later entered into a state of war with other members of the Axis powers, including the Kingdom of Italy on 11 June 1940, and the Empire of Japan on 9 December 1941. By the end of the war, almost a million Australians had served in the armed forces, whose military units fought primarily in the European theatre, North African campaign, and the South West Pacific theatre. In addition, Australia came under direct attack for the first time in its post-colonial history. Its casualties from enemy action during the war were 27,073 killed and 23,477 wounded.
  Australian Army units were gradually withdrawn from the Mediterranean and Europe following the outbreak of war with Japan. However, Royal Australian Air Force and Royal Australian Navy units and personnel continued to take part in the war against Germany and Italy. From 1942 until early 1944, Australian forces played a key role in the Pacific War, making up the majority of Allied strength throughout much of the fighting in the South West Pacific theatre.
context_section_description: Japanese forces first landed on the mainland of New Guinea on 8 March 1942, when they invaded Lae and Salamaua to secure bases for the defence of the important base they were developing at Rabaul. Australian guerrillas from the New Guinea Volunteer Rifles established observation posts around the Japanese beachheads and the 2/5th Independent Company successfully raided Salamaua on 29 June.
  After the Battle of the Coral Sea frustrated the Japanese plan to capture Port Morseby via an amphibious landing, the Japanese attempted to capture the town by landing the South Seas Force at Buna on the north coast of Papua and advancing overland using the Kokoda Track to cross the rugged Owen Stanley Range. The Kokoda Track campaign began on 22 July, when the Japanese began their advance, opposed by an ill-prepared CMF brigade designated 'Maroubra Force'. This force was successful in delaying the South Seas Force but was unable to halt it. Two AIF battalions from the 7th Division reinforced the remnants of Maroubra Force on 26 August, but the Japanese continued to make ground and reached the village of Ioribaiwa near Port Moresby on 16 September. The South Seas Force was forced to withdraw back along the track on this day, however, as supply problems made any further advance impossible and an Allied counter-landing at Buna was feared. Australian forces pursued the Japanese along the Kokoda Track and forced them into a small bridgehead on the north coast of Papua in early November. The Allied operations on the Kokoda Track were made possible by native Papuans who were recruited by the Australian New Guinea Administrative Unit, often forcibly, to carry supplies and evacuate wounded personnel. The RAAF and USAAF also played an important role throughout the campaign by attacking the Japanese force's supply lines and airdropping supplies to Australian Army units.
  Australian forces also defeated an attempt to capture the strategic Milne Bay area in August 1942. During the Battle of Milne Bay two brigades of Australian troops, designated Milne Force, supported by two RAAF fighter squadrons and US Army engineers defeated a smaller Japanese invasion force made up of Japanese Special Naval Landing Forces units. This was the first notable Japanese land defeat and raised Allied morale across the Pacific Theatre.
  Australian and US forces attacked the Japanese bridgehead in Papua in late November 1942, but did not capture it until January 1943. The Allied force comprised the exhausted 7th Division and the inexperienced and ill-trained US 32nd Infantry Division and was short of artillery and supplies. Due to a lack of supporting weapons and MacArthur and Blamey's insistence on a rapid advance the Allied tactics during the battle were centred around infantry assaults on the Japanese fortifications. These resulted in heavy casualties and the area was not secured until 22 January 1943. Throughout the fighting in Papua, most of the Australian personnel captured by Japanese troops were murdered. In response, Australian soldiers aggressively sought to kill their Japanese opponents for the remainder of the war. The Australians generally did not attempt to capture Japanese personnel, and some prisoners of war were murdered.
  Following the defeats in Papua and Guadalcanal the Japanese withdrew to a defensive perimeter in the Territory of New Guinea. In order to secure their important bases at Lae and Salamaua they attempted to capture Wau in January 1943. Reinforcements were flown into the town and defeated the Japanese force in its outskirts following heavy fighting. The Japanese force began to withdraw towards the coast on 4 February. Following their defeat at Wau the Japanese attempted to reinforce Lae in preparation for an expected Allied offensive in the area. This ended in disaster when, during the Battle of the Bismarck Sea, a troop convoy was destroyed by USAAF and RAAF aircraft from the US Fifth Air Force and No. 9 Operational Group RAAF with the loss of about 3,000 troops.
  The Papuan campaign led to a significant reform in the composition of the Aus
caption: The Kokoda and Buna-Gona campaigns
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