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Intelligence Operations in the Cold War

Soviet soldier taking a photograph of another soldier in Red Square, Moscow, 1959

Eastern Europe

Soviet Union

Aerial view of National Mall

North America

United States

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Eastern Europe

Czechoslovakia

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Eastern Europe

Bulgaria

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Eastern Europe

The Palace of the Republic (Palast der Republik) in Berlin

Eastern Europe

East Germany

Project RYaN

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Soviet Union. Committee for State Security (KGB)

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Jan Nowak-Jeziorański broadcasting for Radio Free Europe, 3 May 1952

Radio Free Europe and Radio Liberty

Todor Zhivkov Collection

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Mitrokhin, Vasili

1922- 2004

Mitrokhin Archive

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Kalatozov, Mikhail

1903- 1973

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Germany (East). Ministry for State Security (Stasi)

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Andropov, Yuri Vladimirovich

1914- 1984

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Bulgaria. Ministry of Internal Affairs

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Truman with Attlee and Stalin at Potsdam

Cold War Origins

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Documents

May 3, 1973	Bulgarian Ministry of the Interior, Correspondence with KGB on Technical Assistance to a Bulgarian State Security Operation
December 23, 1983	Bulgarian State Security VI Directorate Report on Agent-Operational Work towards the Clergy in 1983
March 10, 1985	Excerpts from the Indictment of Mehmet Ali Agca Conclusions of the Investigation Case #179/1982 against Mehmet Ali Agca. The indictment contains details of the Bulgarian investigation of the assassination attempt against John Paul II.
April 26, 1949	Secret Daily Information Bulletin for the Prime Minister Georgi Dimitrov, communicated from Sofia to Moscow The Ministry of Foreign Affairs and the Ministry of the Internal Affairs create an informational bulletin on the domestic political developments.
November 28, 1945	Beria’s Cover Memo to Stalin on Niels Bohr Memo to Stalin discussing Beria’s efforts to obtain information from physicist Niels Bohr about development of the atomic bomb.
December 1945	Kurchatov’s Evaluation of Niels Bohr's Questioning Evaluation by the scientific director of the Soviet nuclear project, Igor Kurchatov, of the interview with Niels Bohr.
November 28, 1945	The Interrogation of Niels Bohr At the end of October 1945 two NDVD employees of the “S” Department for atomic intelligence activities were sent to Denmark to establish contact and speak with Niels Bohr. They managed to meet Bohr at his institute twice, on 14 and 16 November 1945, and obtained answers to 22 questions on constructing a nuclear reactor and the atomic bomb.
September 8, 1979	Bulgarian Intelligence Analysis of US-Greek Relations A report on the state of bilateral relations with emphasis on military co-operation and the US mediation of the Greco-Turkish disputes.
July 14, 1972	Record of discussion and text of coordination plan on operative technology from the summer of 1972 through 1974, reached by the Committee of State Security (KGB) of the USSR and the Czechoslovak Ministry of the Interior The KGB and head representative of operative technical services for the Czechoslovak Ministry of the Interior agreed to a plan to continue the exchange of scientific-technical information and samples of operative technology and to convene meetings of specialists on these topics. The text of the coordination plan of summer 1972 - 1974 follows, and categories governed by it include technical documents, photographs, criminology, confidential documents, radio electronics and photo optics.
December 11, 1975	Cooperative plan between the Czechoslovak Ministry of the Interior and the Soviet KGB from the summer of 1976 to 1980 This cooperation agreement seeks to use Czechoslovak-Soviet cooperation as a means to achieve the following objectives: (1) subverting attempts by hostile factions to infiltrate both countries' national and joint staff and military bodies having access to classified military information; (2) detection and obstruction of attempts by state enemies to carry out subversive acts against national and joint armed forces; (3) perfection of counter-intelligence security actions by the Warsaw Treaty united command; and (4) prevention and timely detection of possible leaks of classified information.