United Kingdom Secretary of State for Defence
Royal Arms of His Majesty's Government
Flag of the Secretary of State for Defence
Incumbent John Healey since 5 July 2024
Ministry of Defence
Style	Defence Secretary (informal) The Right Honourable (within the UK and Commonwealth) His Excellency (diplomatic)
Type	Minister of the Crown
Status	Secretary of State
Member of	Cabinet Privy Council National Security Council Defence Council Admiralty Board Army Board Air Force Board
Reports to	The Prime Minister
Seat	Westminster
Nominator	The Prime Minister
Appointer	The Monarch (on the advice of the Prime Minister)
Term length	At His Majesty's pleasure
Constituting instrument	Defence (Transfer of Functions) Act 1964 section 1(1)(a)
Precursor	Minister of Defence Secretary of State for War Secretary of State for Air First Lord of the Admiralty
Formation	1 April 1964
First holder	Peter Thorneycroft
Salary	£159,038 per annum (2022)[1] (including £86,584 MP salary)[2]
Website	Defence Secretary

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v t e

The secretary of state for defence, also known as the defence secretary, is a secretary of state in the Government of the United Kingdom, with responsibility for the Ministry of Defence.^[3] As a senior minister, the incumbent is a member of the Cabinet of the United Kingdom.

The post of secretary of state for defence was created on 1 April 1964, replacing the positions of minister of defence, first lord of the admiralty, secretary of state for war, and secretary of state for air, while the individual offices of the British Armed Forces were abolished and their functions transferred to the Ministry of Defence. In 2019, Penny Mordaunt became the UK's first female defence secretary.^[4]

The secretary of state is supported by the other ministers in the Defence Ministerial Team and the MOD permanent secretary. The corresponding shadow minister is the shadow secretary of state for defence, and the secretary of state is also scrutinised by the Defence Select Committee.^[5]

The current secretary of state for defence is John Healey, who was appointed on 5 July 2024 following the 2024 United Kingdom general election.^[6]

In contrast to what is generally known as a defence minister in many other countries, the Defence Secretary's remit includes:

• Strategic military and defensive operations. The postholder is a member of the National Security Council, and chair of the Defence Council, to which the monarch has given the power to command the Armed Forces.
• Oversight of Defence Intelligence
• Relations with international partnerships, including NATO
• Defence policy (Trident nuclear weapons programme), resourcing and planning
• Communications on defence^[7]

The position of minister for co-ordination of defence was a British Cabinet-level position established in 1936 to oversee and co-ordinate the rearmament of Britain's defences. It was established by the prime minister, Stanley Baldwin, in response to criticism that Britain's armed forces were understrength compared to those of Nazi Germany. When the Second World War broke out, the new prime minister Neville Chamberlain formed a small War Cabinet and it was expected that the minister would serve as a spokesperson for the three service ministers, the secretary of state for war, the first lord of the admiralty and the secretary of state for air; however, political considerations resulted in all three posts being included in the Cabinet, and this role proved increasingly redundant. In April 1940 the position was formally wound up and the functions transferred to other ministers.

Minister			Term of office		Party	Ministry
		Thomas Inskip MP for Fareham (1876–1947)	13 March 1936	29 January 1939	Conservative	Baldwin III
						Chamberlain I
		Ernle Chatfield 1st Baron Chatfield (1873–1967)	29 January 1939	3 April 1940	Independent (National)
						Chamberlain War

The post of minister of defence was responsible for co-ordination of defence and security from its creation in 1940 until its abolition in 1964. The post was a Cabinet level post and generally ranked above the three service ministers, some of whom, however, continued to also serve in Cabinet.

On his appointment as prime minister in May 1940, Winston Churchill created for himself the new post of minister of defence. The post was created in response to previous criticism that there had been no clear single minister in charge of the prosecution of World War II. In 1946, the post became the only cabinet-level post representing the military, with the three service ministers – the secretary of state for war, the first lord of the admiralty, and the secretary of state for air, now formally subordinated to the minister of defence.

Portrait		Name (birth–death)	Term of office		Tenure	Political party	Ministry
			Took office	Left office
		Winston Churchill MP for Epping (1874–1965)	10 May 1940	27 July 1945	5 years, 78 days	Conservative	Churchill War
							Churchill Caretaker
		Clement Attlee MP for Limehouse (1883–1967)	27 July 1945	20 December 1946	1 year, 146 days	Labour	Attlee I
		A. V. Alexander MP for Sheffield Hillsborough (1885–1965)	20 December 1946	28 February 1950	3 years, 70 days	Labour Co-op
		Emanuel Shinwell MP for Easington (1884–1986)	28 February 1950	26 October 1951	1 year, 240 days	Labour	Attlee II
		Winston Churchill MP for Woodford (1874–1965)	28 October 1951	1 March 1952	127 days	Conservative	Churchill III
		Harold Alexander 1st Earl Alexander of Tunis (1891–1969)	1 March 1952	18 October 1954	2 years, 231 days	Independent
		Harold Macmillan MP for Bromley (1894–1986)	18 October 1954	7 April 1955	171 days	Conservative
		Selwyn Lloyd MP for The Wirral (1904–1978)	7 April 1955	20 December 1955	257 days	Conservative	Eden
		Walter Monckton MP for Bristol West (1891–1965)	20 December 1955	18 October 1956	303 days	Conservative
		Antony Head MP for Carshalton (1906–1983)	18 October 1956	9 January 1957	83 days	Conservative
		Duncan Sandys MP for Streatham (1906–1987)	13 January 1957	14 October 1959	2 years, 274 days	Conservative	Macmillan I
		Harold Watkinson MP for Woking (1910–1995)	14 October 1959	13 July 1962	2 years, 272 days	Conservative	Macmillan II
		Peter Thorneycroft MP for Monmouth (1909–1994)	13 July 1962	1 April 1964	1 year, 263 days	Conservative
							Douglas-Home

The post was created in 1964 as successor to the posts of minister for coordination of defence and minister of defence. It replaced the positions of first lord of the admiralty, secretary of state for war and secretary of state for air, as the Admiralty, War Office and Air Ministry were merged into the Ministry of Defence (the secretary of state for war had already ceased to be a cabinet position in 1946, with the creation of the cabinet-level minister of defence).

Secretary of State for Defence

Portrait		Name (birth–death)	Term of office		Tenure	Party	Ministry
		Peter Thorneycroft MP for Monmouth (1909–1994)[8]	1 April 1964	16 October 1964	198 days	Conservative	Douglas-Home
		Denis Healey MP for Leeds East (1917–2015)[9]	16 October 1964	19 June 1970	5 years, 246 days	Labour	Wilson (I & II)
		Peter Carrington 6th Baron Carrington (1919–2018)	20 June 1970	8 January 1974	3 years, 202 days	Conservative	Heath
		Ian Gilmour MP for Central Norfolk (1926–2007)[10]	8 January 1974	4 March 1974	55 days	Conservative
		Roy Mason MP for Barnsley (1924–2015)[11]	5 March 1974	9 September 1976	2 years, 188 days	Labour	Wilson (III & IV)
		Fred Mulley MP for Sheffield Park (1918–1995)[12]	10 September 1976	4 May 1979	2 years, 236 days	Labour	Callaghan
		Francis Pym MP for Cambridgeshire (1922–2008)[13]	5 May 1979	4 January 1981	1 year, 244 days	Conservative	Thatcher I
		John Nott MP for St Ives (1932–2024)[14]	5 January 1981	5 January 1983	2 years, 0 days	Conservative
		Michael Heseltine MP for Henley (born 1933)[15]	6 January 1983	8 January 1986	3 years, 2 days	Conservative	Thatcher II
		George Younger MP for Ayr (1931–2003)[16][17]	9 January 1986	23 July 1989	3 years, 195 days	Conservative
							Thatcher III
		Tom King MP for Bridgwater (born 1933)[18]	28 July 1989	9 April 1992	2 years, 256 days	Conservative
							Major I
		Malcolm Rifkind MP for Edinburgh Pentlands (born 1946)[19]	10 April 1992	4 July 1995	3 years, 85 days	Conservative	Major II
		Michael Portillo MP for Enfield Southgate (born 1953)[20]	5 July 1995	2 May 1997	1 year, 301 days	Conservative
		George Robertson MP for Hamilton South (born 1946)[21]	3 May 1997	11 October 1999	2 years, 161 days	Labour	Blair I
		Geoff Hoon MP for Ashfield (born 1953)[22]	11 October 1999	6 May 2005	5 years, 207 days	Labour
							Blair II
		John Reid MP for Airdrie and Shotts (born 1947)[23]	6 May 2005	5 May 2006	364 days	Labour	Blair III
		Des Browne MP for Kilmarnock and Loudoun (born 1952)[24]	5 May 2006	3 October 2008	2 years, 151 days	Labour
							Brown
		John Hutton MP for Barrow and Furness (born 1955)[25]	3 October 2008	5 June 2009	245 days	Labour
		Bob Ainsworth MP for Coventry North East (born 1952)[26]	5 June 2009	11 May 2010	340 days	Labour
		Liam Fox MP for North Somerset (born 1961)[27][28]	12 May 2010	14 October 2011	1 year, 156 days	Conservative	Cameron–Clegg (Con.–L.D.)
		Philip Hammond MP for Runnymede and Weybridge (born 1955)[29][30]	14 October 2011	15 July 2014	2 years, 274 days	Conservative
		Michael Fallon MP for Sevenoaks (born 1952)[31][32]	15 July 2014	1 November 2017	3 years, 109 days	Conservative
							Cameron II
							May I
							May II
		Gavin Williamson MP for South Staffordshire (born 1976)[33][34]	2 November 2017	1 May 2019	1 year, 180 days	Conservative
		Penny Mordaunt MP for Portsmouth North (born 1973)[35][36]	1 May 2019	24 July 2019	84 days	Conservative
		Ben Wallace MP for Wyre and Preston North (born 1970)[37][38]	24 July 2019	31 August 2023	4 years, 38 days	Conservative	Johnson I
							Johnson II
							Truss
							Sunak
		Grant Shapps MP for Welwyn Hatfield (born 1968)[39]	31 August 2023	5 July 2024	309 days	Conservative
		John Healey MP for Rawmarsh and Conisbrough (born 1960)	5 July 2024	Incumbent	190 days	Labour	Starmer

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