Department of Defence (Australia)


The Department of Defence is a department of the Government of Australia charged with the responsibility to defend Australia and its national interests. Along with the Australian Defence Force, it forms part of the Australian Defence Organisation and is accountable to the Commonwealth Parliament, on behalf of the Australian people, for the efficiency and effectiveness with which it carries out the Government's defence policy.
The head of the Department, who leads it on a daily basis, is the Secretary of the Department of Defence, currently Greg Moriarty. The Secretary reports to the Minister of Defence, currently The Hon. Linda Reynolds MP, following appointment by Prime Minister Scott Morrison in May 2019.

History

Australia has had at least one defence-related government department since Federation in 1901. The first Department of Defence existed from 1901 until 1921. In 1915, during World War I, a separate Department of the Navy was created. The two departments merged in 1921 to form the second Department of Defence, regarded as a separate body.
A major departmental reorganisation occurred in the lead-up to World War II. The Department of Defence was abolished and replaced with six smaller departments – the Defence Co-ordination, three "service departments", the Supply and Development, and Civil Aviation. The current Department of Defence was formally created in 1942, when Prime Minister John Curtin renamed the existing Department of Defence Co-ordination. The other defence-related departments underwent a series of reorganisations, before being merged into the primary department over the following decades. This culminated in the abolition of the three service departments in 1973. A new Department of Defence Support was created in 1982, but abolished in 1984.

Defence Committee

The Defence Committee is the primary decision-making committee in the Department of Defence, supported by 6 subordinate committees, groups and boards. The Defence Committee is focused on major capability development and resource management for the Australian Defence Organisation and shared accountability of the Secretary and the Chief of the Defence Force.
The members of the Defence Committee are:
The Department of Defence consists of ten major organisational groups:
The Chief of the Defence Force and the Secretary of the Department of Defence jointly manage the Australian Defence Organisation under a diarchy in which both report directly to the Minister for Defence and the Assistant Minister for Defence. The ADO diarchy is a governance structure unique in the Australian Public Service.

List of departmental secretaries

The Secretary of the Department of Defence is a senior public service officer and historically the appointees have not come from military service.
NamePost-nominlal'sDate appointment
commenced
Date appointment
ceased
Term in officeNotesRef
, PVNFPethebridge was acting Secretary 1906–1910
Trumble was acting Secretary 1914–1918
Appointment terminated by the Governor-General on the recommendation of Prime Minister Howard.
Barratt fought the decision in the Federal Court, losing on appeal.
Incumbent