The decisive counterintelligence element was the system of double agents known as the Double-Cross System (XX System), operated by the British MI5
Operation Fortitude (1944): Counterintelligence, Strategic Deception, and the Manipulation of the Adversary Operation Fortitude stands as one of the most successful applications of integrated counterintelligence, military deception, and psychological warfare in modern history. Designed as a core component of the strategic framework supporting D-Day, its objective was not to defeat enemy forces through direct combat, […]
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