events
Hans Tiedge, top counter-spy of West Germany, defects to East Germany.
Related Wikipedia articles
Hans Tiedge
West German counter-intelligence official and East German spy
Hans-Joachim Tiedge was a head of West Germany's counter-intelligence in the Office for the Protection of the Constitution (BfV) in Cologne. He was revealed to be an East German spy when he defected to the East on 19 August 1985. He had been recruited by Markus Wolf.Source: Wikipedia (CC BY-SA)
Counterintelligence
Offensive measures using enemy information
Counterintelligence (counter-intelligence) or counterespionage (counter-espionage) is any activity aimed at protecting an agency's intelligence program from an opposition's intelligence service. It includes gathering information and conducting activities to prevent espionage,…Source: Wikipedia (CC BY-SA)
East Germany
Country in Central Europe (1949–1990)
East Germany, officially known as the German Democratic Republic (GDR), was a country in Central Europe from its formation on 7 October 1949 until its reunification with West Germany (FRG) on 3 October 1990. Until 1989, it was generally viewed as a communist state and described…Source: Wikipedia (CC BY-SA)