Australian Army in the context of "Trooper (rank)"

The American Expeditionary Forces (AEF) was a formation of the United States Armed Forces on the Western Front during World War I, composed mostly of units from the U.S. Army. The AEF was established on July 5, 1917, in Chaumont, France under the command of then-major general John J. Pershing. It fought alongside French Army, British Army, Canadian Army, British Indian Army, New Zealand Army and Australian Army units against the Imperial German Army. A small number of AEF troops also fought alongside Italian Army units in 1918 against the Austro-Hungarian Army. The AEF helped the French Army on the Western Front during the Aisne Offensive (at the Battle of Château-Thierry and Battle of Belleau Wood) in the summer of 1918, and fought its major actions in the Battle of Saint-Mihiel and the Meuse-Argonne Offensive in the latter part of 1918.

The M777 howitzer is a British towed 155 mm artillery piece in the howitzer class. It is used by the ground forces of Australia, Canada, Colombia, India, Saudi Arabia, Ukraine, and the United States. It was first used in combat during the War in Afghanistan.

The M777 is manufactured by BAE Systems' Global Combat Systems division. Prime contract management is based in Barrow-in-Furness in Cumbria, England, as well as manufacture and assembly of the titanium structures and associated recoil components. Final integration and testing of the weapon is undertaken at BAE's facility in Hattiesburg, Mississippi, US. Depending on the year, contract and systems package, the M777 has been exported with individual unit costs from US$2.025 million (in 2008) to $3.738 million (in 2017).

The Australian Defence Force Academy (ADFA) is a tri-service military academy that provides military and academic education for junior officers of the Australian Defence Force in the Royal Australian Navy (RAN), Australian Army and Royal Australian Air Force (RAAF) as well as international trainee officers from a variety of countries. In 2016, the academy began accepting civilian students in its undergraduate courses.

Tertiary education is provided by the University of New South Wales' Canberra campus, known as UNSW Canberra at ADFA, which is the awarding body for ADFA qualifications. Apart from educating future leaders of the Australian Defence Force, UNSW Canberra also provides postgraduate programs and short courses both to Department of Defence personnel and the general public.

The Australian Defence Force (ADF) is the military organisation responsible for the defence of Australia and its national interests. It consists of three services: the Royal Australian Navy (RAN), the Australian Army and the Royal Australian Air Force (RAAF). The ADF has a strength of just over 90,000 personnel and is supported by the Department of Defence alongside other civilian entities also members of the Australian Defence Organisation.

During the first decades of the 20th century, the Australian Government established the armed services as separate organisations, with each service having an independent chain of command. In 1976, the government made a strategic change and established the ADF to place the services under a single headquarters. Over time, the degree of integration has increased, and tri-service headquarters, logistics, and training institutions have supplanted many single-service establishments. The ADF has been deployed around the world in combat, peacekeeping and disaster-relief missions.

General David John Hurley (born 26 August 1953) is an Australian former politician and military officer. A senior officer in the Australian Army, he served as the 27th governor-general of Australia from 2019 to 2024. He was previously the 38th governor of New South Wales from 2014 to 2019.

In a 42-year military career, Hurley deployed on Operation Solace in Somalia in 1993, commanded the 1st Brigade (1999–2000), was the inaugural Chief of Capability Development Group (2003–2007) and Chief of Joint Operations (2007–2008) and served as Vice Chief of the Defence Force (2008–2011). His career culminated with his appointment as Chief of the Defence Force on 4 July 2011, in succession to Air Chief Marshal Angus Houston.

Military advisors or combat advisors are military personnel deployed to advise on military matters. The term is often used for soldiers sent to foreign countries to aid such countries' militaries with their military education and training, organization, and other various military tasks.

Foreign powers or organizations may send such soldiers to support countries or insurgencies while minimizing the risks of potential casualties and avoiding the political ramifications of overtly mobilizing military forces to aid an ally.