MI5

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23-11-13 The "XX System": How MI5 Made Fools of the Nazis - Shadows > .

CIA, MI6, FVEY, XX - Intelligence, Espionage, Cyber >> .

BBC - Guy Burgess ..

MI-D - MI6 Section D ..

MI5 ..

MI5 XX - Double-Cross .. 

MI6 - Secret Intelligence Service ..

MI5 IN WORLD WAR II

https://www.mi5.gov.uk/mi5-in-world-war-ii

https://www.mi5.gov.uk/world-war-ii

https://en.wikipedia.org/wiki/MI5

https://en.wikipedia.org/wiki/MI5#Second_World_War

https://en.wikipedia.org/wiki/David_Petrie

https://en.wikipedia.org/wiki/Arthur_Owens

https://en.wikipedia.org/wiki/Operation_Fortitude

https://en.wikipedia.org/wiki/Camp_020

https://en.wikipedia.org/wiki/Latchmere_House

https://en.wikipedia.org/wiki/British_Union_of_Fascists

https://en.wikipedia.org/wiki/Jorian_Jenks

Double Cross - MI5 in World War Two

Double Cross - the true story of the D-Day spies

D-Day spies
Lies and Deceptions that made D-Day possible - IWM > .
Bletchley & Intelligence - playlist

Boffins Beat Belligerents - playlist

Secret Intelligence, SOE, Resistance - playlist

WW2 Deception, Intelligence, Espionage playlist

MI5 characters

Major-General Sir Vernon George Waldegrave Kell, "K" -- founder (1909) and first Director of the British Security Service, otherwise known as MI5 (until 1940)

Sir John Cecil Masterman OBE; chairman Twenty Committee, Double Cross System

Charles Henry Maxwell Knight OBE, known as Maxwell Knight, "M" British intelligence officer in charge of MI5 departments dealing with counter-subversion on home ground

Thomas (TAR) Argyll Robertson -- MI5 -- XX

Britain’s Other Secret Service: MI5 – 10 Interesting Facts and Figures About MI5 You Probably Didn’t Know