Australian Defence Force

Australian Defence Force
Founded1 March 1901 (1901-03-01) (as the Australian Army and Commonwealth Naval Force)
Current form9 February 1976 (1976-02-09) (as the unified Australian Defence Force)
Service branches
HeadquartersRussell Offices and Campbell Park, Canberra, ACT
Leadership
Commander-in-ChiefCharles III, King of Australia
Represented by
Sam Mostyn, Governor General of Australia
Prime MinisterAnthony Albanese
Minister for DefenceRichard Marles
Chief of the Defence ForceAdmiral David Johnston
Personnel
Military age
  • 16.5 years (for selection)
  • 17 years (to serve)
  • 18 years (to deploy)
  • 19 years (for special forces deployment)
ConscriptionWartime only
Active personnel58,909 (30 June 2025)
Reserve personnel33,269 (30 June 2025)
Expenditure
BudgetA$55.7 billion (2024–25)
(~US$36.8 billion)
(ranked 13th)
Percent of GDP2.02% (2024/25)
Industry
Domestic suppliersDefence industry of Australia
Annual exportsAround A$2 billion (2018)
Related articles
HistoryMilitary history of Australia
RanksAustralian Defence Force ranks and insignia

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.

The ADF is technologically sophisticated but relatively small for its landmass. The ADF has 58,909 full-time active-duty personnel and 33,269 active reservists. The ADF has the largest military in Oceania, although it is smaller than most Asian military forces. The ADF is supported by a significant budget by worldwide standards and is well equipped and trained, with defence spending at 2.02% of GDP.