The Australian Army is the principal land warfare force of Australia, a part of the Australian Defence Force (ADF) along with the Royal Australian Navy and the Royal Australian Air Force. The Army is commanded by the Chief of Army (CA), who is subordinate to the Chief of the Defence Force (CDF) who commands the ADF. The CA is also directly responsible to the Minister for Defence, with the Department of Defence administering the ADF and the Army.
A regiment is a military unit. Its role and size varies markedly, depending on the country, service, or specialisation.
The 25th Infantry Division is a United States Army division based at Schofield Barracks in Hawaii. The division, which was activated on 1 October 1941 in Hawaii, conducts military operations primarily in the Asia-Pacific region. Its present deployment is composed of light infantry and aviation units. Tropic Lightning soldiers regularly train with other U.S. military branches to practice and maintain joint operations capabilities. The climate and terrain of the Pacific region demands Tropic Lightning soldiers be able to operate in physically demanding and harsh environments. In 2014, the division opened the Jungle Operations Training Center—the first such school in the Army since the closing of the old Jungle Warfare School at Fort Sherman, Panama Canal Zone. Joint operations and training with partner states herald a new chapter in the history of Tropic Lightning—America's Pacific Division.
The 1st Division is an active division of the British Army that has been formed and disestablished numerous times between 1809 and the present. In its original incarnation as the 1st Division, it took part in the Peninsular War—part of the Coalition Wars of the Napoleonic Wars—and was disbanded in 1814 but was re-formed the following year for service in the War of the Seventh Coalition and fought at the Battle of Waterloo. It remained active as part of the British occupation of France until it was disbanded in 1818, when the British military withdrew. The division was then raised as needed; it served in the Crimean War, the Anglo-Zulu War, and the Second Boer War. In 1902, the British Army formed several permanent divisions, which included the 1st Division, which fought in the First World War, made various deployments during the interwar period, and took part in the Second World War when it known as the 1st Infantry Division.
The Royal Australian Armoured Corps (RAAC) is an administrative corps of the Australian Army. It provides the Australian Defence Force's Armour capability, which performs the function of mounted combat. Armour combines firepower, mobility, protection and networked situational awareness to generate shock action and overmatch in close combat. Armour is an essential element of the combined arms approach that is employed by the Australian Army.
1st Armoured Regiment is an armoured regiment of the Australian Army and is the senior regiment of the Royal Australian Armoured Corps. Formed as a tank unit in the new Australian Regular Army on 7 July 1949, the regiment subsequently saw service during the Vietnam War operating Centurion tanks. Currently the unit is based in Edinburgh, South Australia as part of the 9th Brigade. As part of the Plan Beersheba reorganisation, the unit has become one of three Armoured Cavalry Regiments (ACRs) assigned to the Army's multirole combat brigades in Brisbane, Darwin and Townsville. Each ACR is equipped with M1A1 tanks and ASLAV light armoured vehicles.
The Royal Australian Army Medical Corps (RAAMC) is the branch of the Australian Army responsible for providing medical care to Army personnel. The AAMC was formed in 1902 through the amalgamation of medical units of the various Australian colonies and was first deployed to South Africa as a small detachment of personnel supporting the Australian Commonwealth Horse during the Second Boer War. The corps has participated in every Australian Army operation since then, including wars and peacekeeping operations. The "Royal" prefix was granted in 1948.
This article describes the current structure of the Australian Army. It includes the army's order of battle and the headquarters locations of major units. Members of the Australian Army also serve within joint units of the Australian Defence Force which fall outside the direct command of the Australian Army.
1st Brigade is a combined arms formation of the Australian Army. Formed in 1903 as a militia formation based in New South Wales, it was reconstituted as part of the Australian Imperial Force in 1914 for service during World War I, the brigade fought at Gallipoli and on the Western Front before being disbanded in mid-1919. In 1921, the 1st Brigade was re-raised as a unit of Australia's part-time military forces, based in New South Wales. During World War II the brigade undertook defensive duties before being disbanded. In 1948, it was re-raised as an integral part of the Australian Regular Army. Currently the brigade is based at Robertson Barracks in Darwin and at RAAF Base Edinburgh near Adelaide, South Australia. It is the first of the Australian Army brigades to be re-organised as a combat brigade under Plan Beersheba.
The 3rd Brigade is a combined arms brigade of the Australian Army, principally made up of the 1st and 3rd Battalions of the Royal Australian Regiment. Initially raised in 1903 as part of the post-Federation Australian Army, it was removed from the order of battle in 1906 following the restructure of the field force. It was re-formed in 1914 for service during World War I, taking part in the fighting at Gallipoli and on the Western Front in Europe. During World War II the brigade was used in a defensive role before it was disbanded in 1944. It was re-raised in 1967 for service during the Vietnam War and later went on to provide the nucleus of the deployment to East Timor during the Australian-led intervention in 1999. The brigade is currently based at Lavarack Barracks in Townsville, Queensland.
The 5th/7th Battalion, The Royal Australian Regiment (Mechanised) was a mechanised infantry battalion of the Australian Army. The battalion was based at Robertson Barracks in Holtze, Northern Territory and formed part of the 1st Brigade. It was formed in 1973 by linking both the 5th and 7th Battalions of the Royal Australian Regiment together and was disbanded 3 December 2006, as part of the expansion of the Australian Army, when the 5th and 7th Battalions of the Royal Australian Regiment were delinked into two separate battalions once again.
RAAF Base Edinburgh is a Royal Australian Air Force (RAAF) military airbase located in Edinburgh approximately 28 km (17 mi) north of Adelaide, South Australia, Australia and forms part of the Edinburgh Defence Precinct.
1st Battalion, 5th Marines (1/5) is an infantry battalion in the United States Marine Corps based out of Marine Corps Base Camp Pendleton, California consisting of approximately 800 Marines and sailors. Nicknamed Geronimo, it falls under the command of the 5th Marine Regiment and the 1st Marine Division. The battalion was formed in 1914 and has served in every major conflict that the United States has been involved in since then.
The 8th/12th Regiment, Royal Australian Artillery, was formed at the Holsworthy Barracks on 16 November 1973 through the amalgamation of the 8th Medium Regiment (RAA) and the 12th Field Regiment (RAA). The Regiment provides field artillery support to the 1st Brigade based in Darwin. It is currently equipped with 155mm M777 Howitzers.
The Bradshaw Field Training Area (BFTA) is a large army training area located 600 km (370 mi) south of Darwin in the Northern Territory of Australia. It is used for training by the Australian Army as well as an as an Australia-U.S. combined training centre, with the U.S. Marines stationed at Darwin.
The 1st Combat Engineer Regiment is a combat engineer regiment of the Australian Army. Based in the Northern Territory and attached to 1st Brigade, it is a Regular Army unit of the Royal Australian Engineers and is tasked with providing mobility and counter mobility support.
The Australian Army has used tanks from after the First World War, through the interwar period, the Second World War, the Cold War and to the present day. Throughout this period the Army has primarily been a light infantry force, with its tanks mainly being used in the direct support role. The Australian Army's tanks have seen combat during the Second World War and the Vietnam War, where they proved successful despite some of the designs employed being considered obsolete. The first Australian tanks were a small number of British medium and light tanks which were operated mainly for training purposes during the 1920s and 1930s.
Enhanced Forward Presence (EFP) is a NATO-allied forward-deployed defense and deterrence military force in Northern, Central and Eastern Europe. This posture in Northern Europe through Estonia, Latvia, and Lithuania and in Central Europe through Poland, Slovakia and Hungary and in Eastern Europe through Romania and Bulgaria, is in place to protect and reassure the security of NATO's Northern, Central and Eastern European member states on NATO's eastern flank.
Marine Rotational Force – Darwin is a marine air-ground task force of the United States Marine Corps based at Robertson Barracks and at RAAF Base Darwin, near the city of Darwin in the Northern Territory of Australia.
The Mount Bundey Training Area (MBTA) is a 117,300-hectare (290,000-acre) military training area in the Northern Territory of Australia.
Australia 
United States Pacific Command