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List of Australian Army units
From Wikipedia, the free encyclopedia
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In March 1901, the Australian Army came into existence as the Commonwealth Military Forces through the amalgamation of the former colonies military forces. The existing regiments and battalions of the colonies were reorganised and renumbered due to their absorption into the national army and subsequently formed the first military units of a united Australia. At the outbreak of World War I, in July 1914, the Australian Government committed the First Australian Imperial Force (AIF), a fully volunteer force, to the war; all existing units were exempt from serving overseas due the Defence Act of 1903, which stipulated that they could only serve in Australian territory.
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In 1921, the Citizens Force's regimental numbering system, used since federation, was replaced by a divisional structure when the Australian Government decided to continue the unit designations of the AIF and to continue the traditions of the units of World War I. This renumbering brought about the end of localised regiments, with battalions taking up their role as community recruitment organisations.
In 1939, following the start of World War II the Australian Government created the Second Australian Imperial Force which would see combat in North Africa and the Pacific.
This list covers individual units, above or equivalent to a battalion, which were created or maintained after 1901, by either being militia units that were amalgamated and/or renumbered or being entirely new entities.
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Armies
The field army has been the largest ever created unit for the Australian Army and has only been utilised in the Second World War.
Former Armies
Corps
In the history of the Australian Army, only during the world wars were tactical corps units raised.
Former Corps
World War I
World War II
Divisions
Active Divisions
Active Infantry and Mixed Divisions
Former Divisions
Former Infantry and Mixed Divisions
Former Light Horse Divisions
Former Armoured Divisions
Former Cavalry Divisions
Former Motor Divisions
Brigades
Active Brigades
Infantry and Mixed Brigades
Aviation Brigades
Former Brigades
Former Infantry and Mixed Brigades
Former Motor Brigades
Former Light Horse and Cavalry Brigades
Former Armoured Brigades
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Regiments
Active Regiments
Active Infantry Regiments
- Royal Australian Regiment
- Royal New South Wales Regiment
- Royal Victoria Regiment
- Royal Queensland Regiment
- Royal South Australia Regiment
- Royal Western Australia Regiment
- Royal Tasmania Regiment
- 1st Commando Regiment
- 2nd Commando Regiment
- Special Air Service Regiment (SASR)
- Pilbara Regiment
- NORFORCE
- Far North Queensland Regiment
Active Traning Regiments
Active Engineer Regiments
Active Armoured Regiments
Active Artillery Regiments
Active Aviation Regiments
Active Signal Regiments
- 1st Signal Regiment
- 1st Combat Signal Regiment
- 3rd Combat Signal Regiment
- 7th Signal Regiment
- 7th Combat Signal Regiment
- 8th Signal Regiment
Former Regiments
Former Infantry Regiments
Former University Regiments
Former Engineer Regiments
Former Light Horse Regiments
- 3rd Cavalry Regiment[ac]
- 4th Cavalry Regiment[ad]
- 1st Royal New South Wales Lancers[ae]
- 2nd Light Horse Regiment[af]
- 3rd Light Horse Regiment[ag]
- 4th Light Horse Regiment[ah]
- 5th Light Horse Regiment
- 6th Light Horse Regiment
- 7th Light Horse Regiment
- 8th Light Horse Regiment
- 9th Light Horse Regiment[ai]
- 9th/23rd Light Horse Regiment
- 11th Light Horse Regiment
- 12th Light Horse Regiment
- 13th Light Horse Regiment
- 14th Light Horse Regiment[aj]
- 15th Light Horse Regiment[ak]
- 16th Light Horse Regiment
- 17th Light Horse Regiment
- 18th Light Horse Regiment
- 18th/23rd Light Horse Regiment
- 19th Light Horse Regiment[al]
- 20th Light Horse Regiment[am]
- 21st Light Horse Regiment
- 22nd Light Horse Regiment
- 23rd Light Horse Regiment
- 24th Light Horse Regiment
- 25th Light Horse Regiment
Former Armoured Regiments
Former Artillery Regiments
- 2nd Field Regiment, Royal Australian Artillery
- 2nd/10th Field Regiment, Royal Australian Artillery
- 2nd/15th Field Regiment, Royal Australian Artillery
- 8th Medium Regiment, Royal Australian Artillery
- 10th Medium Regiment, Royal Australian Artillery
- 12th Field Regiment, Royal Australian Artillery
- 13th Field Regiment, Royal Australian Artillery
- 15th Field Regiment, Royal Australian Artillery
- 18th Field Regiment, Royal Australian Artillery
- 22nd Field Regiment, Royal Australian Artillery
- 23rd Regiment, Royal Australian Artillery[an]
- 2/1st Field Regiment
- 2/1st Anti-Tank Regiment
- 2/1st Medium Regiment
- 2/2nd Field Regiment
- 2/2nd Anti-Tank Regiment
- 2/3rd Field Regiment
- 2/3rd Anti-Tank Regiment
- 2/4th Field Regiment
- 2/4th Anti-Tank Regiment
- 2/5th Field Regiment
- 2/6th Field Regiment
- 2/7th Field Regiment
- 2/8th Field Regiment
- 2/9th Field Regiment
- 2/10th Field Regiment
- 2/11th Field Regiment
- 2/12th Field Regiment
- 2/14th Field Regiment
- 2/15th Field Regiment
Former Motor Regiments
![[icon]](#/media/File:Wiki_letter_w_cropped.svg){kind=small} | This section needs expansion. You can help by adding to it. (June 2025) |
- 3rd Motor Regiment
- 9th Motor Regiment
- 12th Motor Regiment
- 16th Motor Regiment
- 20th Motor Regiment[ao]
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Battalions
Active Battalions
Active Infantry Battalions
- 1st Battalion, Royal Australian Regiment[ap]
- 2nd Battalion, Royal Australian Regiment[aq]
- 3rd Battalion, Royal Australian Regiment[ar]
- 5th/7th Battalion, Royal Australian Regiment
- 6th Battalion, Royal Australian Regiment
- 8th/9th Battalion, Royal Australian Regiment
- 1st/19th Battalion, Royal New South Wales Regiment
- 2nd/17th Battalion, Royal New South Wales Regiment
- 4th/3rd Battalion, Royal New South Wales Regiment
- 5th/6th Battalion, Royal Victoria Regiment
- 8th/7th Battalion, Royal Victoria Regiment
- 9th Battalion, Royal Queensland Regiment
- 10th/27th Battalion, Royal South Australia Regiment
- 11th/28th Battalion, Royal Western Australia Regiment
- 12th/40th Battalion, Royal Tasmainian Regiment
- 16th Battalion, Royal Western Australia Regiment
- 25th/49th Battalion, Royal Queensland Regiment
- 31st/42nd Battalion, Royal Queensland Regiment
- 41st Battalion, Royal New South Wales Regiment
- 51st Battalion, Far North Queensland Regiment
Active Health Support Battalions
- 1st Health Battalion
- 2nd Health Battalion
- 3rd Health Battalion
- 4th Health Battalion
Active Support Battalions
- 1st Combat Service Support Battalion
- 3rd Combat Service Support Battalion
- 4th Combat Service Support Battalion
- 5th Combat Service Support Battalion
- 7th Combat Service Support Battalion
- 8th Combat Service Support Battalion
- 8th Operational Support Unit
- 9th Force Support Battalion
- 9th Combat Service Support Battalion
- 10th Force Support Battalion
- 11th Combat Service Support Battalion
- 13th Combat Service Support Battalion
- 39th Operational Support Battalion
Former Battalions
Former Infantry Battalions
- 1st Battalion[as]
- 1st Parachute Battalion
- 2nd Battalion
- 3rd Battalion
- 4th Battalion
- 5th Battalion
- 6th Battalion
- 7th Battalion
- 8th Battalion
- 10th Battalion
- 10th/48th Battalion
- 10th/50th Battalion
- 11th Battalion
- 12th Battalion
- 13th Battalion
- 14th Battalion
- 14th/32nd Battalion
- 15th Battalion
- 17th Battalion
- 18th Battalion
- 18th/51st Battalion
- 19th Battalion
- 20th Battalion
- 21st Battalion
- 22nd Battalion
- 23rd Battalion
- 23rd/21st Battalion
- 24th Battalion
- 25th Battalion
- 26th Battalion
- 27th Battalion
- 28th Battalion
- 29th Battalion
- 29th/22nd Battalion
- 29th/46th Battalion
- 30th Battalion
- 30th/51st Battalion
- 31st Battalion
- 31st/51st Battalion
- 32nd Battalion
- 33rd Battalion
- 34th Battalion
- 35th Battalion
- 36th Battalion
- 37th Battalion
- 37th/52nd Battalion
- 38th Battalion
- 39th Battalion
- 40th Battalion
- 42nd Battalion
- 43rd Battalion
- 43rd/48th Battalion
- 44th Battalion
- 45th Battalion
- 46th Battalion
- 47th Battalion
- 48th Battalion
- 49th Battalion
- 50th Battalion
- 52nd Battalion
- 53rd Battalion
- 54th Battalion
- 55th Battalion
- 55th/53rd Battalion
- 56th Battalion
- 57th Battalion
- 57th/60th Battalion
- 58th Battalion
- 58th/59th Battalion
- 59th Battalion
- 60th Battalion
- 61st Battalion
- 62nd Battalion
- 63rd Battalion
- 64th Battalion
- 65th Battalion
- 66th Battalion
- 67th Battalion
- 68th Battalion
- 69th Battalion
- 70th Battalion[at]
- 71st Battalion[au]
- 72nd Battalion[av]
- 2/1st Battalion
- 2/2nd Battalion
- 2/3rd Battalion
- 2/4th Battalion
- 2/5th Battalion
- 2/6th Battalion
- 2/7th Battalion
- 2/8th Battalion
- 2/9th Battalion
- 2/10th Battalion
- 2/11th Battalion
- 2/12th Battalion
- 2/13th Battalion
- 2/14th Battalion
- 2/15th Battalion
- 2/16th Battalion
- 2/17th Battalion
- 2/18th Battalion
- 2/19th Battalion
- 2/20th Battalion
- 2/21st Battalion
- 2/22nd Battalion
- 2/23rd Battalion
- 2/24th Battalion
- 2/25th Battalion
- 2/26th Battalion
- 2/27th Battalion
- 2/28th Battalion
- 2/29th Battalion
- 2/30th Battalion
- 2/31st Battalion[aw]
- 2/32nd Battalion[ax]
- 2/33rd Battalion[ay]
- 2/40th Battalion
- 2/43rd Battalion
- 2/48th Battalion
- 2nd/4th Battalion, Royal Australian Regiment
- 4th Battalion, Royal Australian Regiment[az]
- 5th Battalion, Royal Australian Regiment[ba]
- 7th Battalion, Royal Australian Regiment[bb]
- 8th Battalion, Royal Australian Regiment[bc]
- 9th Battalion, Royal Australian Regiment[bd]
- 1st New Guinea Infantry Battalion
- 2nd New Guinea Infantry Battalion
- 3rd New Guinea Infantry Battalion
- 4th New Guinea Infantry Battalion
- New Guinea Volunteer Rifles
- Papuan Infantry Battalion
- Torres Strait Light Infantry Battalion
Former Support Battalions
Former Machine Gun Battalions
- 1st Machine Gun Battalion
- 2nd Machine Gun Battalion
- 3rd Machine Gun Battalion
- 4th Machine Gun Battalion
- 5th Machine Gun Battalion
- 6th Machine Gun Battalion
- 7th Machine Gun Battalion
- 19th Machine Gun Battalion
- 2/1st Machine Gun Battalion
- 2/2nd Machine Gun Battalion
- 2/3rd Machine Gun Battalion
- 2/4th Machine Gun Battalion
Former Pioneer Battalions
Former Entrenching Battalions
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Citations
Notes
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