1940 Vivian was one of the organisers of the British Resistance organisation created by SIS. He was particularly responsible for liaison with MI5 to ensure the legality of the body (SIS were not supposed to operate within the UK). In 1941, he became Vice-Chief of SIS but was engaged in a long-running power struggle with Claude Dansey for power within the organisation. He retired from SIS in 1951. References The Records of the Permanent Under-Secretary's Department: Liaison between the Foreign Office and British Secret Intelligence, 1873-1939, UK Foreign & Commonwealth Office, March 2005 See, in particular, "The Secret Service Committee, 1919-1931", Gill Bennett, Chief Historian, Foreign & Commonwealth Office; and "The Secret Intelligence Service and the Case of Hilaire Noulens", Christopher Baxter, Historian, Foreign & Commonwealth Office. External links Site on UK's wartime Special Communications Unit Discusses SIS director Sir Stewart Menzies's reorganisation of units into "Headquarters" and "Foreign" divisions, including Section V UK National Archives releases mentioning Vivian (provides abstracts but documents must be requested directly) 1880 births 1969 deaths Military personnel from London British Indian Army officers Indian Army personnel of World War I Companions of the Order of St Michael and St George Commanders of the Order of the British Empire Secret Intelligence Service personnel Officers of the Legion of Merit Indian Police Service officers in British India People from Kensington World War II spies for the United Kingdom