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Digital Archive International History Declassified

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  • October 13, 1961

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

  • 1963

    Agreement for Cooperation between Bulgarian and Romanian Ministries of the Interior

    The agreement specifies the bilateral cooperation in the intelligence field.

  • February 06, 1963

    Information on Data, Received from Greek and Turkish Legations

  • February 09, 1963

    Proposal of the Minister of the Interior D. Dikov to Bulgarian Secretariat on Exchange of Arrested Agents between Bulgaria and Greece

    The Minister of Internal Affairs, Diko Dikov, seeks authorization from the BCP CC Secretariat for the proposed exchange of captured intelligence operatives between Greece and Bulgaria.

  • 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.

  • January 19, 1965

    T. Zhivkov’s Handwritten Notes on NATO at the Warsaw Pact Meeting in Moscow

  • April 05, 1965

    Resolution B-6 of the Central Committee of the Bulgarian Communist Party Politburo Regarding Prevention of Western Spying on Communication Channels

    Decision Memorandum of the CC BCP Politburo authorizing the Council of Ministers to take all necessary steps to prevent wiretapping party officials’ phone lines by foreign intelligence services.

  • July 06, 1965

    Bulgarian Politburo Resolution on the Separation of State Security from the Ministry of the Internal Affairs

    The restructuring in the BCP CC and the establishment of the State Security Committee to the Council of Ministers.

  • November 17, 1965

    A Proposal from Bulgarian State Security Chairman A. Solakov to the Secretariat on Recruitment of Foreign Students in Bulgaria

    The State Security Committee chair, Angel Solakov, seeks authorization from the BCP CC Secretariat to recruit foreign nationals, residing in Bulgaria as university students and military academy cadets.

  • December 22, 1965

    Correspondence between Gen. A. Solakov and Gen. K. Onescu on Acquired Intelligence Information

  • January 05, 1966

    Report from Gen. V. Terziev on Bulgarian State Security Collegium Decisions

  • January 09, 1966

    Letter from Gen. A. Solakov to Gen. K. Onescu on Information on Italian Citizens

  • January 11, 1966

    Bulgarian Politburo Resolution on Intelligence Actions Against China and Albania

    CC BCP Politburo approves Angel Solakov’s recommendation the State Security Committee to commence intelligence and counter-intelligence operations against PRC and Albania. In an attached report Solakov lays out the rationale for such actions. Solakov cites cases where the Chinese and Albanian intelligence services have allegedly embarked upon anti-Soviet actions in various countries of Europe, Africa, Asia and Latin America.

  • October 27, 1966

    Bulgarian State Security Report on Penetration within Enemy Intelligence Centers

  • July 06, 1967

    Information on Meetings in Sofia with Stasi Chiefs Emilius and M. Wolf

    Includes a detailed description of the organizational structure of the Stasi.

  • January 03, 1968

    Letter from Gen. M. Spasov to Y. Andropov on Acquired Materials from Italian Embassy in Sofia

  • May 18, 1968

    Notes by Gen. M. Spasov on a Statement by Y. Andropov during a Bulgarian State Security Visit to Moscow

  • July 31, 1968

    Proposal from Gen. V. Terziev on Changes in the Personnel of the Military Counterintelligence Directorate and Departments

  • August 20, 1968

    Secret Decree of the Council of Ministers of the PR of Bulgaria for the Participation of Bulgarian Troops in the Warsaw Pact Operation in Czechoslovakia

  • December 07, 1968

    Plan for Countering Military Attachés of Capitalist Countries in Sofia

    Proposed measures for disrupting the alleged intelligence cooperation among Western military attachés in Sofia.