Skip to main menu
Skip to site search
Skip to main content
Primary Sources
Buy Access
Help
About
Contact us
Cookies
U.S. Intelligence on Europe, 1945-1995
Filter your search
Filter by collection subject
Filter by date
3>
1945
4>
1946
2>
1948
2>
1949
1>
1950
17>
1951
5>
1952
2>
1953
1>
1955
1>
1956
1>
1961
1>
1965
1>
1968
1>
1975
1>
1982
1>
1984
1>
1986
1>
1989
Filter by place
Filter by language
Filter by subject
Bulgaria
x
1>
Aerial reconnaissance
1>
Agent disposal
7>
Agent infiltration
1>
Agent infiltration missions
5>
Agent infiltration operations
1>
Agent networks
1>
Agent recruitment
3>
Agent training
1>
Airborne forces
1>
Aircraft
1>
Aircraft carriers
1>
Aircraft movements
1>
Airfields
18>
Albania
1>
Anti-communist resistance organizations
1>
Berlin crisis
1>
BGCONVOY
1>
BGFIEND
1>
British intelligence
3>
British intelligence services
1>
Budget
1>
Bulgarian complicity in 1981 papal assassination attempt
1>
Bulgarian Guard Company
1>
Bulgarian officials indicted
3>
Captured agents
1>
Cardinal Mindszenty
1>
CIA station
1>
Civic Forum
1>
Clandestine radio traffic
1>
Commando units
2>
Communist guerrillas
1>
Congressional opposition
1>
Cover designations
14>
Covert action
1>
Covert aircraft
1>
Covert transport aircraft
5>
Czechoslovakia
1>
Czechoslovakian intelligence
1>
Defector inducement
1>
Defector interrogations
1>
Demand for free elections
1>
Dependence on overt sources
1>
DGER
1>
Dimitri A. Dimitrov
1>
Diplomatic codes
1>
Dismantling Stalinist controls
1>
Dmitri A. Dimitrov
1>
Dutch embassy
2>
Dutch intelligence services
1>
Eastern Europe
5>
East Germany
1>
Emigre groups
1>
End of one-party rule
1>
Espionage trials
1>
Evaluation of operation
1>
Expose CIA operations
1>
Food and energy shortages
1>
Foreign Office
2>
France
1>
Francois Mitterand
1>
French government
1>
French intelligence service
2>
French intelligence services
2>
Gehlen Org
2>
George M. Dimitrov
1>
German intelligence services
3>
Germany
1>
Great Britain
6>
Greece
1>
Growing ethnic tension
1>
GSFG
1>
Hans Globke
2>
HUMINT
9>
Hungary
1>
Improving relations with Libya
1>
Inadequate intelligence collection inside Bulgaria
1>
Infiltration
1>
Infiltration missions
1>
Influence of Catholic Church and Solidarity trade union
2>
Intelligence deficiencies
1>
Intelligence report
1>
Internal review
1>
Internal security capabilities
1>
Interrogation
1>
Interrogations
1>
Italian Communist Party
2>
Italian intelligence services
1>
Italian naval intelligence
1>
Italy
1>
JBEDICT
1>
John Bruce Lockhart
1>
Konrad Adenauer
1>
Lack of intelligence production
1>
Leaflet drops
1>
Legalized divorce
1>
Logistics
1>
Malta
1>
Maritime intelligence
1>
Marshal Tito
1>
Mazowiecki government
1>
Mediterranean
1>
Mehmet Ali Agca
3>
MI6
1>
Military airfields
1>
Move to market economy
1>
Municipal elections
1>
National committees
1>
No contact with Bulgarians because of secret police
1>
No diplomatic relations
1>
Normal state of readiness
1>
Nuclear targeting
1>
Office of National Estimates
14>
Office of Policy Coordination
1>
Organization
1>
Paramilitary activities
2>
Paramilitary operations
1>
Partisan warfare
6>
Poland
3>
Political
1>
Political dissent
1>
Pope John Paul II
1>
Popular discontent
1>
Portugal
1>
Possibilities of change
1>
Presidential elections
3>
Propaganda
1>
Propaganda broadcasts aimed at Albania
2>
Psychological warfare
1>
Public demonstrations
4>
QKSTAIR
1>
Radio Tirana
1>
Recruitment of agents
1>
Reduced intelligence reporting
1>
Re-examination of operations
1>
Refugees
1>
Reinhard Gehlen
1>
Repression of Turkish minority
1>
Results of Bulgarian leaflet drops
1>
Resumption of diplomatic relations
1>
Reunification
10>
Romania
1>
Satellite imagery
1>
Satellite reconnaissance
1>
SIGINT
1>
Soviet air force
2>
Soviet attack on Yugoslavia
1>
Soviet control mechanisms
1>
Soviet military
1>
Soviet military forces
1>
Soviet troops
1>
State Department
3>
Supply drops
1>
Support
1>
Suspension of leaflet drops into Albania
1>
Swedish intelligence services
1>
The Vatican
1>
Todor Zhivkov
1>
Trade with Albania
1>
Trieste
2>
Troop concentrations
1>
Troop movements
2>
Turkey
1>
Turkish terrorist groups
1>
Ukraine
1>
Unprecedented political reforms
2>
Usually reliable source
1>
Vatican
1>
Vatican neutral position towards Italian domestic politics
1>
Velvet Revolution
1>
Visit to West Germany
13>
Yugoslavia
Filter by collection
U.S. Intelligence on Europe, 1945-1995
x
Filter by access
Subscribed Content Only
Filter by collection subject
Filter by date
3>
1945
4>
1946
2>
1948
2>
1949
1>
1950
17>
1951
5>
1952
2>
1953
1>
1955
1>
1956
1>
1961
1>
1965
1>
1968
1>
1975
1>
1982
1>
1984
1>
1986
1>
1989
Filter by place
Filter by language
Filter by subject
Bulgaria
x
1>
Aerial reconnaissance
1>
Agent disposal
7>
Agent infiltration
1>
Agent infiltration missions
5>
Agent infiltration operations
1>
Agent networks
1>
Agent recruitment
3>
Agent training
1>
Airborne forces
1>
Aircraft
1>
Aircraft carriers
1>
Aircraft movements
1>
Airfields
18>
Albania
1>
Anti-communist resistance organizations
1>
Berlin crisis
1>
BGCONVOY
1>
BGFIEND
1>
British intelligence
3>
British intelligence services
1>
Budget
1>
Bulgarian complicity in 1981 papal assassination attempt
1>
Bulgarian Guard Company
1>
Bulgarian officials indicted
3>
Captured agents
1>
Cardinal Mindszenty
1>
CIA station
1>
Civic Forum
1>
Clandestine radio traffic
1>
Commando units
2>
Communist guerrillas
1>
Congressional opposition
1>
Cover designations
14>
Covert action
1>
Covert aircraft
1>
Covert transport aircraft
5>
Czechoslovakia
1>
Czechoslovakian intelligence
1>
Defector inducement
1>
Defector interrogations
1>
Demand for free elections
1>
Dependence on overt sources
1>
DGER
1>
Dimitri A. Dimitrov
1>
Diplomatic codes
1>
Dismantling Stalinist controls
1>
Dmitri A. Dimitrov
1>
Dutch embassy
2>
Dutch intelligence services
1>
Eastern Europe
5>
East Germany
1>
Emigre groups
1>
End of one-party rule
1>
Espionage trials
1>
Evaluation of operation
1>
Expose CIA operations
1>
Food and energy shortages
1>
Foreign Office
2>
France
1>
Francois Mitterand
1>
French government
1>
French intelligence service
2>
French intelligence services
2>
Gehlen Org
2>
George M. Dimitrov
1>
German intelligence services
3>
Germany
1>
Great Britain
6>
Greece
1>
Growing ethnic tension
1>
GSFG
1>
Hans Globke
2>
HUMINT
9>
Hungary
1>
Improving relations with Libya
1>
Inadequate intelligence collection inside Bulgaria
1>
Infiltration
1>
Infiltration missions
1>
Influence of Catholic Church and Solidarity trade union
2>
Intelligence deficiencies
1>
Intelligence report
1>
Internal review
1>
Internal security capabilities
1>
Interrogation
1>
Interrogations
1>
Italian Communist Party
2>
Italian intelligence services
1>
Italian naval intelligence
1>
Italy
1>
JBEDICT
1>
John Bruce Lockhart
1>
Konrad Adenauer
1>
Lack of intelligence production
1>
Leaflet drops
1>
Legalized divorce
1>
Logistics
1>
Malta
1>
Maritime intelligence
1>
Marshal Tito
1>
Mazowiecki government
1>
Mediterranean
1>
Mehmet Ali Agca
3>
MI6
1>
Military airfields
1>
Move to market economy
1>
Municipal elections
1>
National committees
1>
No contact with Bulgarians because of secret police
1>
No diplomatic relations
1>
Normal state of readiness
1>
Nuclear targeting
1>
Office of National Estimates
14>
Office of Policy Coordination
1>
Organization
1>
Paramilitary activities
2>
Paramilitary operations
1>
Partisan warfare
6>
Poland
3>
Political
1>
Political dissent
1>
Pope John Paul II
1>
Popular discontent
1>
Portugal
1>
Possibilities of change
1>
Presidential elections
3>
Propaganda
1>
Propaganda broadcasts aimed at Albania
2>
Psychological warfare
1>
Public demonstrations
4>
QKSTAIR
1>
Radio Tirana
1>
Recruitment of agents
1>
Reduced intelligence reporting
1>
Re-examination of operations
1>
Refugees
1>
Reinhard Gehlen
1>
Repression of Turkish minority
1>
Results of Bulgarian leaflet drops
1>
Resumption of diplomatic relations
1>
Reunification
10>
Romania
1>
Satellite imagery
1>
Satellite reconnaissance
1>
SIGINT
1>
Soviet air force
2>
Soviet attack on Yugoslavia
1>
Soviet control mechanisms
1>
Soviet military
1>
Soviet military forces
1>
Soviet troops
1>
State Department
3>
Supply drops
1>
Support
1>
Suspension of leaflet drops into Albania
1>
Swedish intelligence services
1>
The Vatican
1>
Todor Zhivkov
1>
Trade with Albania
1>
Trieste
2>
Troop concentrations
1>
Troop movements
2>
Turkey
1>
Turkish terrorist groups
1>
Ukraine
1>
Unprecedented political reforms
2>
Usually reliable source
1>
Vatican
1>
Vatican neutral position towards Italian domestic politics
1>
Velvet Revolution
1>
Visit to West Germany
13>
Yugoslavia
Filter by collection
U.S. Intelligence on Europe, 1945-1995
x
Advanced Search
Your search for
'*:*, filtered on [Subject: Bulgaria, Collection Id: us-intelligence-on-europe]'
returned
46
results.
Sort results by:
Relevance
|
Title
Modify Search
CIA, Memorandum, Air Support Aircraft, June 9, 1950, Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1950
Match:
Partial (No exact match found)
U.S. Army, Report, Greece ::Communications Between Guerrillas and Satellites, September 29, 1948, Top Secret Glint, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
U.S. Army
Date:
1948
Match:
Partial (No exact match found)
National Indications Center, Report, Evaluation of Recent Soviet Aircraft Movements into Eastern Europe, December 17, 1961, Top Secret [codeword not declassified], CIA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
National Indications Center
Date:
1961
Match:
Partial (No exact match found)
CIA, Report, Bulgaria ::Coping With the Papal Assassination Scandal, December 1984, Top Secret/NOFORN [codeword not declassified], CREST.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1984
Match:
Partial (No exact match found)
U.S. Army, Memorandum, Briefing for the Secretary of the Army, February 16, 1951, Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
U.S. Army
Date:
1951
Match:
Partial (No exact match found)
U.S. Navy, Cable, ALUSNA Paris to CNO, December 18, 1945, Top Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
U.S. Navy
Date:
1945
Match:
Partial (No exact match found)
CIA, Report, Absolute Aircraft Requirements ::Project Name: BGFIEND, July 1951, Top Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1953
Match:
Partial (No exact match found)
CIA, Report, EE-1 ::Report of Operations for the Quarter Ended 30 June 1951, July 1951, Top Secret Sensitive, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1951
Match:
Partial (No exact match found)
U.S. Air Force, Report, Albania ::Military Strengths and Weaknesses, June 29, 1951, Secret, CREST.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
U.S. Air Force
Date:
1951
Match:
Partial (No exact match found)
National Photographic Interpretation Center (NPIC), Report, Non-Soviet Warsaw Pact Special-Purpose Airborne Forces, July 1982, Secret/NOFORN, CREST.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
National Photographic Interpretation Center (NPIC)
Date:
1982
Match:
Partial (No exact match found)
CIA, Memorandum, OSO/OPC Infiltration, Albania - 24 June 1951, June 26, 1951, Top Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1951
Match:
Partial (No exact match found)
CIA, Memorandum, Eastern Europe on the Eve of the Malta Meeting, November 29, 1989, Confidential/NOFORN, CIA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1989
Match:
Partial (No exact match found)
U.S. Army, Decrypt, Paris to Sofia (French), November 30, 1945, Top Secret Ultra, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
U.S. Army
Date:
1945
Match:
Partial (No exact match found)
CIA, Memorandum, Conversation with State Department Representatives Concerning Albanian and Bulgarian Operations, April 3, 1951, Top Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1951
Match:
Partial (No exact match found)
CIA, Report, Soviet Union/Eastern Europe, January 15, 1986, Top Secret Umbra/NOFORN, CREST.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1986
Match:
Partial (No exact match found)
CIA, Memorandum, Decrease in Intelligence on Bulgaria, September 5, 1953, Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1953
Match:
Partial (No exact match found)
Department of State, Cable, Caserta Italy to Secretary of State, August 7, 1945, Top Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
Department of State
Date:
1945
Match:
Partial (No exact match found)
U.S. Army, Report, Daily Intelligence Briefing, February 2, 1951, Top Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
U.S. Army
Date:
1951
Match:
Partial (No exact match found)
U.S. Army, Report, Greece ::Rebel Supply Depot Probably in Bulgaria, June 8, 1948, Top Secret Glint, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
U.S. Army
Date:
1948
Match:
Partial (No exact match found)
CIA, Report, Staff Notes ::Western Europe, Canada, International Organizations, November 24, 1975, Top Secret Umbra, CREST.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1975
Match:
Partial (No exact match found)
CIA, Report, BGCONVOY Monthly Project Status Report for Month of January 1952, February 1952, Top Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1952
Match:
Partial (No exact match found)
CIA, Report, Daily Digest, February 1, 1952, Secret, CREST.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1952
Match:
Partial (No exact match found)
CIA, Report, Director’s Log, December 4, 1951, Top Secret, CIA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1951
Match:
Partial (No exact match found)
CIA, Report, Director’s Log, November 26, 1951, Top Secret, CIA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1951
Match:
Partial (No exact match found)
CIA, Report, BGCONVOY Monthly Project Status Report for Month of February 1952, March 1952, Top Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1952
Match:
Partial (No exact match found)
CIA, Report, Director’s Log, October 23, 1951, Top Secret, CIA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1951
Match:
Partial (No exact match found)
CIA, Report, Director’s Log, October 22, 1951, Top Secret, CIA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1951
Match:
Partial (No exact match found)
CIA, Memorandum, Monthly Report for EE-1 for September 1951, October 5, 1951, Top Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1951
Match:
Partial (No exact match found)
CIA, Report, QKSTAIR Monthly Project Status Report for Month of September 1951, October 1951, Top Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1952
Match:
Partial (No exact match found)
CIA, Report, Director’s Log, October 13, 1951, Top Secret, CIA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1951
Match:
Partial (No exact match found)
CIA, Report, [EE-1] Daily Progress Report, October 10, 1951, Top Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1951
Match:
Partial (No exact match found)
CIA, Memorandum, Conversation With deleted Re BGFIEND and Bulgarian Intelligence, September 18, 1951, Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1951
Match:
Partial (No exact match found)
CIA, Report, EE-1 Daily Report, August 7, 1951, Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1951
Match:
Partial (No exact match found)
CIA, Report, Director’s Log, September 6, 1951, Top Secret, CIA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1951
Match:
Partial (No exact match found)
CIA, Report, EE-1 Daily Report, August 29, 1951, Top Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1951
Match:
Partial (No exact match found)
SSU, Memorandum, CIG Representatives for Budapest, Lodz, and Sofia, September 4, 1946, Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
Strategic Services Unit (SSU)
Date:
1946
Match:
Partial (No exact match found)
CIA, Memorandum, Prospects for Independence in Eastern Europe, February 18, 1965, Secret, LBJL.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1965
Match:
Partial (No exact match found)
CIA, Estimate, NIE 10-55 ::Anti-Communist Resistance Potential in the Sino-Soviet Bloc, April 12, 1955, Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1955
Match:
Partial (No exact match found)
SSU, Memorandum, SI Coverage in Southeast Europe, February 26, 1946, Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
Strategic Services Unit (SSU)
Date:
1946
Match:
Partial (No exact match found)
SSU, Memorandum, Future Plans and Operations in Southeastern Europe, July 2, 1946, Secret Control, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
Strategic Services Unit (SSU)
Date:
1946
Match:
Partial (No exact match found)
Department of State, Memorandum, US Position on Re-Establishment of Diplomatic Relations with Bulgaria, February 23, 1956, Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
Department of State
Date:
1956
Match:
Partial (No exact match found)
U.S. Army, Cable, MTOUSA Caserta Italy to War Department, June 15, 1946, Top Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
U.S. Army
Date:
1946
Match:
Partial (No exact match found)
U.S. Navy, Memorandum, Airfields - Determination of Strategic Significance and LOC Weaknesses thereto, April 1, 1949, Top Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
U.S. Navy
Date:
1949
Match:
Partial (No exact match found)
CIA, Report, Eastern European Intelligencer, March 26, 1968, Top Secret [codeword not declassified], CREST.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1968
Match:
Partial (No exact match found)
CIA, Report, [EE-1] Daily Progress Report, June 17, 1952, Top Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
CIA
Date:
1952
Match:
Partial (No exact match found)
U.S. Army, Letter, Brady to Bolling, January 14, 1949, Secret, NARA.
Collection:
U.S. Intelligence on Europe, 1945-1995
Author:
U.S. Army
Date:
1949
Match:
Partial (No exact match found)
Display:
10
|
20
|
50
|
100
items per page
▲ back to top ▲