John Alexander Sinclair

John Sinclair
Allegiance United Kingdom
Service Secret Intelligence Service (SIS/MI6)
Active 1953–1956
Rank Chief of the Secret Intelligence Service
Award(s) KCMG, CB, OBE
Born 29 May 1897
Fulham
Died 22 March 1977(1977-03-22) (aged 79)
Funtington
Nationality British
Occupation Intelligence officer

Sir John Alexander Sinclair, KCMG CB OBE (29 May 1897 – 22 March 1977) was Head of the Secret Intelligence Service from 1953 to 1956.

Career

Sinclair was Educated at Winchester College & Dartmouth Naval College, commissioned into the Royal Army Service Corps.[1] In 1938 he was appointed an Instructor at the Staff College, Camberley.[2] By 1941 he was Deputy Director of Operations at the War Office and then in 1942 he became Director Royal Artillery for 1st Division.[2] In 1944 he was appointed Director of Military Intelligence at the War Office.[2] In 1946, while still in the British Army he started working for the Secret Intelligence Service.

Following his retirement from the military in 1952, as a Major-General,[2] he was appointed head of the British Secret Intelligence Service, taking up the post in 1953. He led the Service through the translation from its wartime operations, directing operations in the emerging Cold War environment in a "practical and responsible fashion",[3] "instead of accommodating the risk takers".[4] He also introduced reforms to recruitment and conditions of service designed to introduce a professional career structure within SIS suited to post-war conditions.[3][5] His personal integrity was recognised not just by colleagues, but also by opponents.[6]

Sir John's retirement coincided with a failed frogman mission to investigate the Soviet cruiser Ordzhonikidze that had brought the leader of the Soviet Union Nikita Khrushchev and Prime Minister Nikolai Bulganin on a diplomatic mission to Britain, resulting in the death of frogman Lionel Crabb. The Prime Minister had not approved this mission and some accounts incorrectly claimed that Sir John had been forced to resign.[7] The Authorized History of MI5 confirms however that the decision that the head of that service should succeed Sir John at his planned retirement date in 1956 had been taken by the Prime Minister in 1954.[8]

References

  1. ↑ The London Gazette: (Supplement) no. 31309. p. 5264. 10 June 1948. Retrieved 19 December 2009.
  2. 1 2 3 4 Army profile
  3. 1 2 Dick White, Oxford Dictionary of National Biography Oxford University Press, 2004; online edn, May 2006
  4. ↑ Page 66, Nigel West, At Her Majesty's Secret Service: The Chiefs of Britain's Intelligence Agency, MI6; 2006, Greenhill Books, ISBN 978-1-85367-702-1
  5. ↑ Page 80, Nigel West, At Her Majesty's Secret Service: The Chiefs of Britain's Intelligence Agency, MI6; 2006, Greenhill Books, ISBN 978-1-85367-702-1
  6. ↑ Page 113, Kim Philpy, My Silent War; 2002, Modern Library Paperback Edition, ISBN 978-0-375-75983-3
  7. ↑ Page 79, Nigel West, At Her Majesty's Secret Service: The Chiefs of Britain's Intelligence Agency, MI6; 2006, Greenhill Books, ISBN 978-1-85367-702-1
  8. ↑ Page 328, Christopher Andrew, The Defence of the Realm - the Authorized History of MI5; 2009, Penguin Books, ISBN 978-0-7139-9885-6
Military offices
Preceded by
Francis Davidson		 Director of Military Intelligence
1944–1945 		Succeeded by
Freddie de Guingand
Government offices
Preceded by
Sir Stewart Menzies		 Chief of the SIS
1953–1956 		Succeeded by
Sir Dick White
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