The Australian military's role in the South-West Pacific decreased during 1944. In the latter half of 1943, the Australian Government decided, with MacArthur's agreement, that the size of the military would be reduced to release manpower for war-related industries which were important to supplying Britain and the US forces in the Pacific. Australia's main role in the Allied war effort from this point forward was supplying the other Allied countries with food, materials and manufactured goods needed for the defeat of Japan. As a result of this policy, the Army units available for offensive operations were set at six infantry divisions (the three AIF divisions and three CMF divisions) and two armoured brigades. The size of the RAAF was set at 53 squadrons and the RAN was limited to the ships which were in service or planned to be built at the time. In early 1944, all but two of the Army's divisions were withdrawn to the Atherton Tableland in north Queensland for training and rehabilitation. Several new battalions of Australian-led Papuan and New Guinea troops were formed during 1944, and organised into the Pacific Islands Regiment, however, and largely replaced the Australian Army battalions disbanded during the year. These troops had seen action alongside Australian units throughout the New Guinea campaign.