Directorate of Military Intelligence
|Jurisdiction||Government of the United Kingdom|
|Parent department||British War Office|
Over its lifetime the Directorate underwent a number of organisational changes, absorbing and shedding sections over time.
The first instance of an organisation which would later become the DMI was the Department of Topography & Statistics, formed by Major Thomas Best Jervis, late of the Bombay Engineer Corps, in 1854 in the early stages of the Crimean War.
Directors of Military Intelligence
- 1886–1891: Henry Brackenbury
- 1891–1896: Edward Francis Chapman
- 1896–1901: John Charles Ardagh
- 1901–1904: William Nicholson
- 1904–1915: intelligence under the Director of Military Operations
- 1915–1916: Charles Edward Callwell
- 1916–1918: George Mark Watson Macdonogh
- 1918–1922: William Thwaites
- 1922–1926: John Burnett-Stuart
- 1926–1931: Ronald Charles
- 1931–1934: William Henry Bartholomew
- 1934–1936: John Greer Dill
- 1936–1938: Robert Hadden Haining
- 1938–1939: Henry Royds Pownall
- 1939–1940: Frederick Beaumont-Nesbitt
- 1940–1944: Francis Henry Norman Davidson
- 1944–1945: John Alexander Sinclair
- 1945–1946: Francis de Guingand
- 1946–1948: Gerald Templer
- 1948–1949: Douglas Packard
- 1949–1953: Arthur Shortt
- 1953–1966: Valentine Boucher
- 1956–1959: Cedric Rhys Price
- 1959–1962: Richard Eyre Lloyd
- 1962–1965: Marshall St John Oswald
During World War I, British secret services were divided into numbered sections named Military Intelligence, department number x, abbreviated to MIx, such as MI1 for information management. The branch, department, section, and sub-section numbers varied through the life of the department, however examples include:
|MI1||Codes and cyphers. Later merged with other code-breaking agencies and became Government Code and Cypher School (now known as Government Communications Headquarters).|
|MI2||Information on Middle and Far East, Scandinavia, USA, USSR, Central and South America.|
|MI3||Information on Eastern Europe and the Baltic Provinces (plus USSR, Eastern Europe and Scandinavia after Summer 1941).|
|MI4||Geographical section—maps (transferred to Military Operations in April 1940).|
|MI6||Liaison with Secret Intelligence Service and Foreign Office.|
|MI7||Press and propaganda (transferred to Ministry of Information in May 1940).|
|MI8||Signals interception and communications security.|
|MI9||Escaped British PoW debriefing, escape and evasion (also: enemy PoW interrogation until 1941).|
|MI10||Technical Intelligence worldwide.|
|MI12||Liaison with censorship organisations in Ministry of Information, military censorship.|
|MI13||Not used (except in fiction e.g. MI-13, The Scarifyers).|
|MI14||Germany and German-occupied territories (aerial photography until Spring 1943).|
|MI15||Aerial photography. In the Spring of 1943, aerial photography moved to the Air Ministry and MI15 became air defence intelligence.|
|MI16||Scientific Intelligence (formed 1945).|
|MI17||Secretariat for Director of Military Intelligence from April 1943.|
|MI18||Used only in fiction.|
|MI19||Enemy prisoner of war interrogation (formed from MI9 in December 1941).|
|MI (JIS)||Related to Joint Intelligence Staff, a sub-group of the Joint Intelligence Committee. Axis planning staff.|
|MI L(R)||Russian Liaison.|
Two MI section-names remain in use. "MI5" and "MI6" are used colloquially in the United Kingdom and elsewhere to refer to the Security Service and the Secret Intelligence Service respectively, although neither organisation has been officially titled as such since the late 1920s. Both "MI5" and "MI6" are also depicted in the logos of the respective organisations and are often used to refer to both departments by the government and media, even though the Security Service is actually part of the Home Office and the Secret Intelligence Service of the Foreign Office.
- "History of the Ministry of Defence". Mod.uk. Retrieved 2009-06-19.
- The Puppet Masters, John Hughes-Wilson, Cassell, London, 2004
- The London Gazette: . 21 August 1959.
- "SIS Records — War Office Military Intelligence (MI)Sections in the Second World War". Sis.gov.uk. Retrieved 2009-06-19.
- Aldrich, Richard James (1998). Espionage, security, and intelligence in Britain, 1945–1970. Manchester University Press. p. 66. ISBN 978-0-7190-4956-9.