Structure of the Australian Army during World War II

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Members of the 9th Division during a formal parade in late 1942 Australian 9th Div at Gaza in 1942 (AWM 050124).jpg
Members of the 9th Division during a formal parade in late 1942

The structure of the Australian Army changed considerably during World War II. At the outbreak of war the Army comprised a small regular component and a large, but ill-trained and equipped, militia force. In September 1939 the government authorised the establishment of the Second Australian Imperial Force for overseas service; this force eventually reached a strength of four infantry divisions, an armoured division and various headquarters and support units. The militia force, which remained in Australia, was neglected until the outbreak of the Pacific War.

Australian Army land warfare branch of Australias defence forces

The Australian Army is Australia's military land force. It is part of the Australian Defence Force (ADF) along with the Royal Australian Navy and the Royal Australian Air Force. While the Chief of the Defence Force (CDF) commands the ADF, the Army is commanded by the Chief of Army (CA). The CA is therefore subordinate to the CDF, but is also directly responsible to the Minister for Defence. Although Australian soldiers have been involved in a number of minor and major conflicts throughout its history, only in World War II has Australian territory come under direct attack.

World War II 1939–1945 global war

World War II, also known as the Second World War, was a global war that lasted from 1939 to 1945. The vast majority of the world's countries—including all the great powers—eventually formed two opposing military alliances: the Allies and the Axis. A state of total war emerged, directly involving more than 100 million people from over 30 countries. The major participants threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. World War II was the deadliest conflict in human history, marked by 50 to 85 million fatalities, most of whom were civilians in the Soviet Union and China. It included massacres, the genocide of the Holocaust, strategic bombing, premeditated death from starvation and disease, and the only use of nuclear weapons in war.

Second Australian Imperial Force expeditionary force during World War II

The Second Australian Imperial Force was the name given to the volunteer personnel of the Australian Army in World War II. Under the Defence Act (1903), neither the part-time Militia nor the full-time Permanent Military Force (PMF) could serve outside Australia or its territories unless they volunteered to do so. The Second AIF fought against Nazi Germany, Italy, Vichy France and Japan. After the war, Australia's wartime military structures were demobilised and the 2nd AIF was disbanded, although a small cadre of its personnel became part of the Interim Army that was established in 1947, and from which the Australian Regular Army was formed in 1948.

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The militia units were fully activated in late 1941, and additional such formations were established in 1942. Despite the loss of the 8th Division in February 1942, the Army reached its peak strength of eleven infantry divisions and three armoured divisions later that year. [1] This force was larger than what the Australian economy could support, however, and was gradually reduced in size. [2] At the end of 1943 the Government determined that the Army's strength was to be six infantry divisions and two armoured brigades, though further reductions were ordered in August 1944 and June 1945. [3] If the conflict had continued past August 1945, the size of the Army would have been further reduced to three divisions. [4]

8th Division (Australia) former infantry division of the Australian Army

The 8th Division was an infantry division of the Australian Army, formed during World War II as part of the all-volunteer Second Australian Imperial Force. The 8th Division was raised from volunteers for overseas service from July 1940 onwards. Consisting of three infantry brigades, the intention had been to deploy the division to the Middle East to join the other Australian divisions, but as war with Japan loomed in 1941, the division was divided into four separate forces, which were deployed in different parts of the Asia-Pacific region. All of these formations were destroyed as fighting forces by the end of February 1942 during the fighting for Singapore, and in Rabaul, Ambon, and Timor. Most members of the division became prisoners of war, waiting until the war ended in late 1945 to be liberated. One in three died in captivity.

Brigade Military formation size designation, typically of 3-6 battalions

A brigade is a major tactical military formation that is typically composed of three to six battalions plus supporting elements. It is roughly equivalent to an enlarged or reinforced regiment. Two or more brigades may constitute a division.

Following the end of the war the Australian Army was rapidly demobilized. However, the force formed for occupation duties in Australia became the nucleus of the permanent Australian Regular Army, and a large number of militia units continued to be maintained.

Orders of battle

3 September 1939

On the outbreak of war, the Army comprised the following major units: [5]

1st Division (Australia) Australian Army operational command

The 1st Division is the main formation of the Australian Army and contains the majority of the Army's regular forces. Its headquarters is in Enoggera, a suburb of Brisbane. The division was first formed in 1914 for service during World War I as a part of the Australian Imperial Force (AIF). It was initially part of the Australian and New Zealand Army Corps (ANZAC) and served with that formation during the Gallipoli campaign, before later serving on the Western Front. After the war, the division became a part-time unit based in New South Wales, and during World War II it undertook defensive duties in Australia before being disbanded in 1945.

2nd Division (Australia) formation of the Australian Army

The 2nd Division commands all the Reserve brigades in Australia. These are the 4th in Victoria, the 5th in New South Wales, the 9th in South Australia and Tasmania, the 11th in Queensland, the 13th in Western Australia, and the 8th spread across the country. The division is also responsible for the security of Australia's northern borders through its Regional Force Surveillance Units.

3rd Division (Australia) 1916-1991 Australian Army division

The 3rd Division was an infantry division of the Australian Army. Existing during various periods between 1916 and 1991, it is considered the "longest serving Australian Army division". It was first formed during World War I, as an infantry division of the Australian Imperial Force and saw service on the Western Front in France and Belgium. During this time it fought major battles at Messines, Broodseinde Ridge, Passchendaele, Amiens, and the St Quentin Canal.

9 April 1942

The Army was restructured in 1942, with major units as follows: [6]

15 August 1945

The structure of the Army's major combat units and commands at the end of the war was as follows: [7] [8]

See also

Notes

  1. Johnston 2007, p. 10.
  2. Palazzo 2001, p. 174.
  3. Palazzo 2001, p. 177.
  4. Palazzo 2001, p. 178.
  5. Niehorster, Leo; Watson, Graham; Robert, Michel. "Australian Military Forces 3 September 1939". World War II Armed Forces: Orders of Battle and Organizations. Orbat.com. Retrieved 12 January 2013.
  6. Palazzo 2001, p. 170.
  7. Palazzo 2001, p. 181.
  8. "AWM52, 1/1/1/63 - August 1945" (PDF). General Staff (Operations) General Staff (Staff Duties) Land Headquarters (LHQ G(Ops) and (SD)) war diary. Australian War Memorial. p. 13. Retrieved 16 January 2013.

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2nd Armoured Division (Australia) 1942-1943 combat formation of the Australian Army

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3rd Armoured Division (Australia) 1942-1943 combat formation of the Australian Army

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3rd Brigade (Australia) formation of the Australian Army

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Northern Territory Force

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9th Brigade (Australia) brigade of the Australian Army

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6th Brigade (Australia) formation of the Australian Army

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The 2nd Brigade was a brigade-sized infantry unit of the Australian Army. Formed in 1903 as a militia formation based in Victoria, the brigade later served during the First World War as part of the Australian Imperial Force, allocated to the 1st Division. During the war, the 2nd Brigade took part in the fighting at Gallipoli, including the Battle of Krithia where it lost almost a third of its strength. Later they took part in the Battle of Lone Pine before being withdrawn back to Egypt in December 1915. Following this the brigade was transferred to the Western Front in France and Belgium where, between March 1916 and the armistice in November 1918, they took part in most of the major Allied operations.

6th Cavalry Brigade (Australia)

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12th Brigade (Australia)

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