Services Reconnaissance Department

Services Reconnaissance Department (SRD), also known as Special Operations Australia (SOA) and previously known as Inter-Allied Services Department (ISD), was an Australian military intelligence and special reconnaissance unit, during World War II.

Authorised by Prime Minister John Curtin in March 1942, following the outbreak of war with Japan, the Inter-Allied Services Department was formed on 17 April 1942, having been given approval by General Thomas Blamey. Modelled initially on the British Special Operations Executive (SOE), it was organised initially by SOE British Army officer, Lieutenant Colonel G. Egerton Mott. For security reasons it was named ISD and its existence was to be only known by the Prime Minister and the High Command.

On 6 July 1942, a controlling body Allied Intelligence Bureau (AIB) was formed to co-ordinate the operations of ISD and other similar organisations and became fully functional in December 1942. ISD was known as Section A within AIB. In February 1943, ISD was disbanded and a new body called Special Operations Australia was formed in April 1943 not under the control of the AIB.^{[citation needed]} Shortly afterwards the cover name of Services Reconnaissance Department (SRD) was given to SOA in May 1943. This was done because of the similarity of the initials SOA to SOE,^{[citation needed]} whose security was likely to compromised. Z Special Unit was transferred to SOA from AIB,^{[citation needed]} and it was decided to form M Special Unit for the AIB.

SOA oversaw intelligence-gathering, reconnaissance and raiding missions in Japanese-occupied areas of New Guinea, the Dutch East Indies (Indonesia), Portuguese Timor (East Timor), the Malayan Peninsula, British Borneo and Singapore.^[1][2]

• Allied Intelligence Bureau
• Coastwatchers
• HMAS Nyanie
• M Special Unit
• Netherlands East Indies Forces Intelligence Service
• Pacific War
• Secret Intelligence Australia
• Z Special Unit

• Dennis, Peter; Grey, Jeffrey; Morris, Ewan; Prior, Robin; Bou, Jean (2008). The Oxford Companion to Australian Military History (Second ed.). Melbourne: Oxford University Press. ISBN 978-0195517842.
• Powell, Alan (1996). War by Stealth: Australians and the Allied Intelligence Bureau 1942–1945. Carlton South, Victoria: Melbourne University Press. ISBN 0-522-84691-2.

• Ooi, Keat Gin (October 2002). "Prelude to Invasion: Covert Operations Before the Re-occupation of Northwest Borneo, 1944–45". Journal of the Australian War Memorial (37). Canberra: Australian War Memorial. ISSN 1327-0141.
• Horton, Dick (1983). Ring of Fire: Australian Guerilla Operations Against the Japanese in World War II. London: Leo Cooper/Secker and Warburg. ISBN 9780436201578.
• The Official History of the Operations and Administration of] Special Operations – Australia [(SOA), also known as the Inter-Allied Services Department (ISD) and Services Reconnaissance Department (SRD)], Volume 2 – Operations (scan) (1st. ed.). 8 March 1946. Retrieved 29 November 2015 – via National Archives of Australia. 606 pages

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