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Digital Archive International History Declassified

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  • June 17, 1959

    Information on French Intelligence Activity Against Bulgaria

    The memo focuses on the operations of the French intelligence services in Bulgaria during the late 1950s.

  • May 17, 1960

    Journal of Soviet Ambassador in the DPRK A.M. Puzanov for 17 May 1960

    Puzanov informs Kim Il Sung of the Soviet position toward America's provocations and says Kim's request to visit Krushchev in Moscow will likely be accepted.

  • 1961

    Intelligence Report on Counterintelligence Interactions with Great Britain and Israel

    A report on the progress of agent recruitment.

  • January 01, 1961

    Letter from Gen. G. Tzankov to A. Shelepin Regarding Acquired Materials from the US Mission in Sofia

  • October 13, 1961

    Report from Gen. B. Dumkov on Completion of Operation "Pine-tree"

  • July 05, 1963

    Bulgarian Ministry of Internal Affairs, Information Report on NATO

    On 5 July 1963 the Bulgarian Ministry of Internal Affairs completed an information report on NATO's activity during the Cuban Missile Crisis. In the report, the ministry outlines detailed espionage carried out by NATO agents. According to the report, the NATO Military Intelligence Services provided instructions for NATO member-states' military attaches stationed in Warsaw Pact countries and agents they could get to cooperate with them. Agents were to observe and report specific military intelligence collecting in Warsaw Pact countries -- arms deliveries, missile sites, military movements, etc. The report also includes explanation of how the attaches carried out their intelligence gathering -- reading official press, speaking in Russian and misrepresenting themselves as Russian, etc . The Bulgarian Interior Ministry notes that Western governments were well-informed of Bulgarian military structures -- including exact formations and secret designations.

  • December 07, 1968

    Plan for Countering Military Attach├ęs of Capitalist Countries in Sofia

    Proposed measures for disrupting the alleged intelligence cooperation among Western military attach├ęs in Sofia.

  • February 06, 1969

    Bulgarian State Security Plan for Operational Measures toward Yugoslav, Romanian, and Czechoslovak Military Attaches

  • November 13, 1969

    Stasi Note on Meeting with KGB Officials, 13 November 1969

    Meeting between KGB First Deputy S. K. Zvigun (Tsvigun) and East German Minister for State Security Mielke. They discuss anti-Soviet "ideological subversion" on the part of the United States and other enemies, as well as Soviet dissidents such as Alexander Solzhenitsyn and Andrei Sakharov.

  • 1970

    Review from Gen. Grigor Grigorov on Subversive Activities of Turkish Intelligence 1968-1969

    Report on the work of Turkish intelligence services in Bulgaria.

  • December 06, 1973

    Agreement on Cooperation between the Stasi and the KGB, 6 December 1973

    1973 agreement between the Stasi and the KGB outlining their cooperative efforts to fight "ideological subversion" and uncover "the hostile plans of the enemy." Both secret services would also exchange information gathered by their espionage activities and provide mutual support in infiltrating agents. Of particular mutual interest was espionage against the Federal Republic of Germany and West Berlin. To this end, the KGB was permitted to recruit East German citizens, and the MfS would secure their ongoing contacts.

  • January 24, 1974

    Information No. 61 KGB Request for Data from the Interrogation Protocols for Israeli Spy Henrich Shpeter Arrested in Sofia

  • June 22, 1974

    Information No. 664 KGB, Bulgarian State Security Assistance on an Active Measures toward the United States

  • August 12, 1974

    Information No. 1053 KGB, Bulgarian State Security Assistance on an Active Measure toward the United States

  • March 07, 1975

    Plan on joint counter-intelligence measures between the KGB and Czechoslovak Ministry of the Interior from summer 1975 until 1977

    This agreement outlines cooperation on security issues concerning hostile ideological centers, emigrant groups and anti-socialist, anti-Soviet, revisionist and nationalist groups. Also discussed in detail are ecclesiastical organizations, the alteration of informational and occupational gatherings between the two countries and scientific, cultural and students exchanges.

  • August 30, 1976

    Cooperative agreement between the Interior Ministry of the Czechoslovak Socialist Republic and the Soviet Union KGB

    The Czechoslovak and Soviet security branches agreed to cooperate in the acquisition of documents and the sharing of information on hostile persons. The two parties committed to favorable relations within international organizations and joint counter-intelligence measures, articulating a focus on improving intelligence and counter-intelligence on the U.S. and its allies and China. Both parties vow to assist each other in illegal intelligence work and in the counter-intelligence monitoring of persons working for embassies, international firms or otherwise engaged in economic relations. The Czechoslovaks and Soviets agree to coordinate actions before providing assistance to security programs in developing countries, the Democratic People's Republic of Korea and the Vietnamese Socialist Republic.

  • March 04, 1977

    Cooperative agreement between the Soviet KGB and Czechoslovak Ministry of the Interior for the year 1977

    The Soviet KGB and Czechoslovak Interior Ministry agree to the exchange of workers between the two countries. These exchanges would focus on the sharing of information and expertise in various areas, including: identification procedures for unidentified bodies, security measures for capital regions, fire-fighting methods and ways to combat subversive activity in youth and teenagers. The two parties also agree to the exchange of publications on the Soviet military, security and criminology, which are listed by title and number of copies.

  • December 05, 1977

    Cooperation agreement between the state security schools of the Soviet Union and Czechoslovak Socialist Republic

    The two schools agree to bilateral consultations regarding training content and internships for cadets and to share teaching materials, teachers, recorded lectures and film. Both educational institutions pledge to work together to determine a common plan for each school year. This agreement also mentions the Soviet Red Banner distinction.

  • March 29, 1978

    Protocol Guiding Cooperation between the Stasi and the KGB, 1978

    Agreement between the Stasi and KGB outlining the placement of KGB liaison officers and their responsibilities, as well as granting the KGB the right to recruit East German citizens for intelligence work.

  • December 08, 1978

    Cooperative plan between the Interior Ministry of the Czechoslovak Socialist Republic and the KGB of the Soviet Union from the summer of 1979-1981

    The parties agree to assist one another in the collection of intelligence information on political, economic, scientific and technical matters and exchange information on suspicious contacts of Czechoslovak and Soviet citizens suspected to be spies or subversive. Both agree to the exchange of counter-intelligence regarding Czechoslovak and Soviet citizens working in scientific organizations and international exhibitions, fairs and congresses. Steps are outlined to protect railroad cargo using troops from Warsaw Pact states, prevent eavesdropping of telecommunications and detect and prevent foreign terrorist attacks on Czechoslovak and Soviet airplanes and anti-socialist interruption of international trucking lines. Special mention is made of multiple international transportation organizations that need to be monitored. Information-sharing procedures are agreed to for commercial and industrial firms, banks, scientific centers and international scientific organizations.