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UK Ministry of Defence

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UK Ministry of Defence
NameUK Ministry of Defence
Formed1964
Preceding1Admiralty
Preceding2War Office
Preceding3Air Ministry
JurisdictionUnited Kingdom
HeadquartersMain Building, Whitehall
Employees56,860 civilian staff (2023)
Budget£50.0 billion (2022–23)
Minister1 nameGrant Shapps
Minister1 titleSecretary of State for Defence
Chief1 nameAdmiral Sir Tony Radakin
Chief1 titleChief of the Defence Staff
Chief2 nameDavid Williams
Chief2 titlePermanent Under-Secretary of State for Defence
Child1 agencyRoyal Navy
Child2 agencyBritish Army
Child3 agencyRoyal Air Force
Child4 agencyStrategic Command

UK Ministry of Defence. The UK Ministry of Defence is the British government department responsible for implementing the defence policy set by His Majesty's Government and is the headquarters of the British Armed Forces. Formed in 1964 from the merger of several historic service departments, it manages one of the world's largest military budgets and oversees operations across the globe. The department is led by the Secretary of State for Defence, a senior member of the Cabinet of the United Kingdom, and is headquartered at the Main Building, Whitehall in London.

History

The department was created in 1964 under Prime Minister Harold Wilson through the merger of the Admiralty, the War Office, and the Air Ministry, centralising control of the Royal Navy, British Army, and Royal Air Force. This reorganisation followed earlier attempts at integration, such as the creation of the Chiefs of Staff Committee in 1923. Key historical events managed by its predecessors include the Napoleonic Wars, the Crimean War, and both World War I and World War II. Since its formation, it has overseen major operations including the Falklands War, the Gulf War, and campaigns in Afghanistan and Iraq, while adapting to post-Cold War strategic shifts outlined in documents like the 2021 Integrated Review.

Organisation and structure

The department is a ministerial department of His Majesty's Government, with its senior civilian official being the Permanent Under-Secretary of State for Defence. Military command is exercised through the Chief of the Defence Staff and the Defence Council. The armed forces are divided into four frontline commands: the Royal Navy (including the Royal Marines), the British Army, the Royal Air Force, and the joint Strategic Command. Supporting these are numerous agencies and organisations, such as the Defence Equipment and Support agency, the Defence Science and Technology Laboratory, and the United Kingdom Hydrographic Office.

Responsibilities and functions

Its primary duty is to defend the United Kingdom and its overseas territories, protect its interests, and strengthen international peace and stability. This includes the deterrence of state-level threats, counter-terrorism, cyber defence through the National Cyber Force, and contributing to NATO collective security. The department is also responsible for the procurement of military equipment, intelligence gathering via agencies like Defence Intelligence, and the management of the United Kingdom's nuclear deterrent, which is delivered by the Vanguard-class and future Dreadnought-class submarines. It provides humanitarian aid and disaster relief, as seen during operations following Hurricane Irma.

Ministers and senior officials

The political leadership is headed by the Secretary of State for Defence, a cabinet position currently held by Grant Shapps. He is supported by ministers of state including the Minister of State for the Armed Forces and the Minister for Defence Procurement. The senior civilian official is the Permanent Under-Secretary of State for Defence, David Williams. The professional head of the armed forces is the Chief of the Defence Staff, Admiral Sir Tony Radakin, supported by the Vice-Chief and the single-service chiefs: the First Sea Lord, the Chief of the General Staff, and the Chief of the Air Staff.

Budget and expenditure

It operates one of the largest defence budgets in the world, with expenditure for 2022–23 at approximately £50 billion. Funding is allocated through the HM Treasury spending review process and is guided by multi-year planning cycles like the Defence Command Paper. Major expenditure areas include personnel costs, equipment procurement and support, and infrastructure. The budget supports the UK's commitment to spend 2% of GDP on defence, a key NATO benchmark, and funds major programmes such as the Dreadnought-class submarine programme and the Tempest future combat air system.

Major equipment and programmes

The department oversees a vast portfolio of equipment and development programmes. Current major naval assets include the Queen Elizabeth-class aircraft carriers, Astute-class submarines, and the Type 45 destroyer. The British Army is modernising with the Ajax armoured vehicle and the Challenger 3 tank. The Royal Air Force operates the Eurofighter Typhoon, F-35 Lightning II, and RAF Voyager tankers. Future programmes include the Dreadnought-class submarine for the nuclear deterrent, the Type 26 frigate and Type 31 frigate for the Royal Navy, and the Global Combat Air Programme developing a next-generation fighter with partners like Italy and Japan.

Category:Ministry of Defence (United Kingdom) Category:1964 establishments in the United Kingdom Category:Government departments of the United Kingdom