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The Department of Defence () is the department of the
Government of Ireland The Government of Ireland () is the executive (government), executive authority of Republic of Ireland, Ireland, headed by the , the head of government. The government – also known as the cabinet (government), cabinet – is composed of Mini ...
that is responsible for preserving peace and security in
Ireland Ireland (, ; ; Ulster Scots dialect, Ulster-Scots: ) is an island in the North Atlantic Ocean, in Northwestern Europe. Geopolitically, the island is divided between the Republic of Ireland (officially Names of the Irish state, named Irelan ...
, and administers the
Irish Defence Forces The Defence Forces (, officially styled ) derives its origins from the Irish Volunteers. Whilst the Irish for ''Defence Forces'' is , as Ó Cearúil (1999) points out, the Defence Forces are officially styled . is used in other contexts (e.g. ...
. The department is led by the Minister for Defence.


Departmental team

The official headquarters of the department are at Station Road,
Newbridge, County Kildare Newbridge, officially known by its Irish language, Irish name Droichead Nua (), is a town in County Kildare, Ireland. While the nearby Great Connell Priory was founded in the 13th century, the town itself formed from the 18th century onwards, an ...
. The departmental team consists of the following: * Minister for Defence:
Simon Harris Simon Harris (born 17 October 1986) is an Irish Fine Gael politician serving as Tánaiste, Minister for Foreign Affairs and Trade and Minister for Defence since January 2025, having previously served as Taoiseach from 2024 to 2025. He has ...
, TD **
Minister of State at the Department of Defence The Minister of State at the Department of Defence () is a junior ministerial post in the Department of Defence (Ireland), Department of Defence of the Government of Ireland who performs duties and functions delegated by the Minister for Defence ...
: Thomas Byrne, TD *Secretary General of the Department: Jacqui McCrum


History

The Department of Defence was created at the very first meeting of
Dáil Éireann Dáil Éireann ( ; , ) is the lower house and principal chamber of the Oireachtas, which also includes the president of Ireland and a senate called Seanad Éireann.Article 15.1.2° of the Constitution of Ireland reads: "The Oireachtas shall co ...
on 21 January 1919. The
Ministers and Secretaries Act 1924 The Ministers and Secretaries Acts 1924 to 2020 is the legislation which governs the appointment of ministers to the Government of Ireland and the allocation of functions between departments of state. It is subject in particular to the provi ...
, passed soon after the establishment of the
Irish Free State The Irish Free State (6 December 192229 December 1937), also known by its Irish-language, Irish name ( , ), was a State (polity), state established in December 1922 under the Anglo-Irish Treaty of December 1921. The treaty ended the three-ye ...
in 1922, provided it with a statutory basis. This act provided it with:


Structure

The mission of the Department of Defence is to meet the needs of
Government A government is the system or group of people governing an organized community, generally a State (polity), state. In the case of its broad associative definition, government normally consists of legislature, executive (government), execu ...
and the public by providing value for money defence and
civil defence Civil defense or civil protection is an effort to protect the citizens of a state (generally non-combatants) from human-made and natural disasters. It uses the principles of emergency management: prevention, mitigation, preparation, response, ...
services and by co-ordinating and overseeing the emergency planning process via the Office of Emergency Planning (OEP). The Department is also concerned with ensuring the secure and stable environment necessary for economic growth and development in
Ireland Ireland (, ; ; Ulster Scots dialect, Ulster-Scots: ) is an island in the North Atlantic Ocean, in Northwestern Europe. Geopolitically, the island is divided between the Republic of Ireland (officially Names of the Irish state, named Irelan ...
. The military budget was €1.005 Billion in 2007 (estimated) and €1.354 Billion in 2010. By 2015 the budget had been cut to €885 Million and was projected to stay at that level until 2017 according to a report by the Department of Finance. The Department oversees the operations of the
Irish Defence Forces The Defence Forces (, officially styled ) derives its origins from the Irish Volunteers. Whilst the Irish for ''Defence Forces'' is , as Ó Cearúil (1999) points out, the Defence Forces are officially styled . is used in other contexts (e.g. ...
whose roles are: *to defend the State against armed aggression; this being a contingency, preparations for its implementation will depend on an ongoing Government assessment of the security and defence environment *to aid the civil power (meaning in practice to assist, when requested, the Garda Síochána, who have primary responsibility for law and order, including the protection of the internal security of the State) *to participate in multinational peace support, crisis management and humanitarian relief operations in support of the United Nations and under UN mandate, including regional security missions authorised by the UN *to provide a fishery protection service in accordance with the State’s obligations as a member of the
European Union The European Union (EU) is a supranational union, supranational political union, political and economic union of Member state of the European Union, member states that are Geography of the European Union, located primarily in Europe. The u ...
*to carry out such other duties as may be assigned to them from time to time, e.g. search and rescue, air ambulance service, Ministerial air transport service, assistance on the occasion of natural or other disasters, assistance in connection with the maintenance of essential services, assistance in combating oil pollution at sea The Department has also had responsibility for the
Irish Red Cross The Irish Red Cross Society (IRCS; also Irish Red Cross or IRC; ) is the National Red Cross Society for the Republic of Ireland. (Northern Ireland comes under the aegis of the British Red Cross.) The society was formally established on 6 July ...
since 1939. When not engaged in military operations at home or overseas, most defence organisations concentrate on training and preparation and not on the provision of non-military services. The Defence Forces have achieved very high levels of training and preparation in recent years while also providing a wide range of services to other Government Departments and agencies. The Defence Forces Training Centre at the
Curragh Camp The Curragh Camp () is an army base and military college in The Curragh, County Kildare, Ireland. It is the main training centre for the Irish Defence Forces and is home to 2,000 military personnel. History Longstanding military heritage Th ...
is staffed by 1,300 soldiers and 300 civilians. Records are maintained by the
Irish Military Archives The Irish Military Archives is the official depository for the records of the Irish Department of Defence, the Defence Forces, and the Army Pensions Board, as established by the National Archives Act of 1986.—The function of the archive is to ...
.


Relationship with Defence Forces

The 2020 Defence Forces Review was published for the Military Authorities by the Public Relations Section at the Chief of Staff’s Branch, in academic collaboration with the Dublin City University School of Law and Government and containing the following disclaimer: This Review contains an article examining the relationship between the Department and the Defence Forces. The article outlines the background to an apparently very high level of detailed civilian control in the military environment and contrasts this with other, reasonably similar, defence structures in Europe. Retired Senior Officers and RACO (Representative Association of Commissioned Officers) are cited as describing the relationship as variously “toxic”, “divisive” and “dismissive”. The matter was reported as being subject to an investigation ordered by the Chief of Staff. An apparent dispute between the Department of Defence Secretary General and the Chief of Staff of the Defence Forces in relation to the release of documents under Freedom of Information Legislation was also reported in April 2021.


References


External links

*
Structure of the Department
{{DEFAULTSORT:Department Of Defence (Ireland) 1919 establishments in Ireland
Defence Defense or defence may refer to: Tactical, martial, and political acts or groups * Defense (military), forces primarily intended for warfare * Civil defense, the organizing of civilians to deal with emergencies or enemy attacks * Defense indust ...
Ireland Ireland (, ; ; Ulster Scots dialect, Ulster-Scots: ) is an island in the North Atlantic Ocean, in Northwestern Europe. Geopolitically, the island is divided between the Republic of Ireland (officially Names of the Irish state, named Irelan ...
Military of the Republic of Ireland Ireland, Defence Newbridge, County Kildare