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{{r|Secret Intelligence Service}}

{{r|Secret Intelligence Service}}

{{r|Secret Intelligence Service}}

While the WWII GCCS was under the the [[Secret Intelligence Service]] (SIS), GCHQ reports to the Foreign Secretary and work closely with the SI ...her School''' (GCCS), based at [[Bletchley Park]], which reported to the [[Secret Intelligence Service]]. Its major achievements included the [[ULTRA]] cryptanalysis of the Germa

..., who had risen to head the Soviet counterintelligence division in the [[Secret Intelligence Service]] (SIS), was removed from office in 1951 — as the chief officer assig

...[[Kim Philby]]; diplomats Burgess & Maclean defected and Philby left the [[Secret Intelligence Service]] (SIS) in 1951, Blunt identified in 1964 but announced in 1979; involveme

{{r|Secret Intelligence Service}}

{{r|Secret Intelligence Service}}

{{r|Secret Intelligence Service}}

A British national-level civilian organization, the '''Secret Intelligence Service (SIS)''', often but incorrectly called "MI6", is the British center for int

...ictor Jones''' was the first Scientific Intelligence officer in the U.K. [[Secret Intelligence Service]], with responsibilities for what, today, would include [[technical intelli

...telligence agency, like the U.S. [[Central Intelligence Agency]] or U.K. [[Secret Intelligence Service]]. It was responsible for domestic counterintelligence, like the U.S. [[Fed

{{r|Secret Intelligence Service}}

{{r|Secret Intelligence Service}}

...: a [[psychological warfare]] analysis group, and a new Section D in the [[Secret Intelligence Service]]. In parallel, the [[War Office]] set up a [[guerrilla warfare]] research The core of SOE came from Section D of the [[Secret Intelligence Service]].

...rmany's not having a "Secret Service" tradition like that of the British [[Secret Intelligence Service]]. Commenting that his immediate supervisor, [[Reinhard Heydrich]], played

...was the [[Venlo Incident]], in which it lured operatives of the British [[Secret Intelligence Service]] into being captured at the border of a neutral country.<ref name=Venlo>{{

{{r|Secret Intelligence Service}}

...nd for some time the body of) the scientific intelligence section of the [[Secret Intelligence Service]] (SIS) reviewed it, and at first it might be [[deception]], as the materia

Since 2009, '''Sir John Sawyers''' (1955-) has been Director of the British [[Secret Intelligence Service]] (SIS, MI6), with the traditional informal title of "C". His assignment, a