Cold War espionage

former ring of spies in the United Kingdom

international youth organisation

Alleged Soviet spy

WWII US counterintelligence project

term for the actions of political warfare conducted by the Soviet and Russian security services

Danish politician (1897–1972)

espionage mission of the USA directed to the Soviet Union

intelligence agency

American cryptographer (1912-2002)

United States Army general (1895–1985)

1964 Eastern Bloc disinformation operation involving fake Nazi-era documents

Soviet disinformation campaign to discredit the Vatican

PROFUNC, an acronym for "prominent functionaries of the communist party", was a top secret Government of Canada project to identify and observe suspected Canadian communists and crypto-communists during the height of the Cold War.