East German Ministry of State Security, 'New Methods of Operation of Western Secret Services'
Assessment by the Stasi of changes to operations made by the main Western secret services in response to Khrushchev's November 1958 diplomatic note to the United States, Britain, and France demanding an end to the occupation of West Berlin.
January 09, 1962
East German Ministry of State Security, 'Brief Assessment of the Investigation Results Achieved in 1961 in Work on Crimes of Espionage'
Assessment by the Stasi of the espionage of the main Western secret services in East Germany based on its investigation of cases of spying in 1961.
January 01, 1971
The Democratic National Front, The Army of Occupied Dhufar, Oman and the Arab Gulf, Military Bureau, 'The Truth of the Political Arrests in Muscat'
Several military leaders from the Democratic National Front have been arrested by the British Intelligence Service in multiple locations as a result of treason.