The intelligence depended on cooperation of other intelligent units all over the world as the changes in tactics was inevitable. The Anglo – American cooperation helped the counter intelligence to defeat and distract the Axis operations (Theoharis) . For that reason, collaborative secret operations rolled out with such code names as ‘ultra’, ‘magic’ and ‘Boniface’ constantly used to distract the opponents.
 Theoharis Athan Chasing Spies: How the FBI Failed in Counterintelligence But Promoted the Politics of McCarthyism in the Cold War Years Chicago: Ivan R. Dee, 2002. Available on: <https://www.cia.gov/library/center-for-the-study-of-intelligence/csi-publications/csi-studies/studies/vol47no3/article07.html> Retrieved on 2010-09-19
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