Subject
History
17
Soviet Union Foreign relations
6
Cold War
5
Cold War Military intelligence
4
Europe, Eastern Foreign relations
4
Europe, Eastern History, Military
4
Intelligence service History
4
Soviet Union History
4
Soviet Union Military policy
4
Martial law
3
Czechoslovakia Foreign relations
2
Czechoslovakia History
2
Espionage, American
2
Korean War, 1950-1953 Military intelligence
2
Korean War, 1950-1953 Secret service
2
Poland Armed Forces Officers
2
Poland Politics and government
2
Spies
2
Vietnam War, 1961-1975 Aerial operations, American
2
Air pilots, Military
1
Assassination
1
Cold War Influence
1
Conspiracies History
1
Espionage, American History
1
Exiles
1
Exiles History
1
Government publications
1
Hmong (Asian people)
1
Indochina History
1
Intelligence service
1
Irregular warfare
1
Laos History, Military
1
Marine Corps Air Station Futenma (Japan)
1
Military assistance, American History
1
Operation Millpond, 1961
1
Organized crime History
1
Political refugees
1
Russia Foreign relations
1
Russians History
1
Search and rescue operations
1
United States Foreign relations
1
Vietnam History
1
Vietnam War, 1961-1975
1
Vietnam War, 1961-1975 Campaigns
1
Vietnam War, 1961-1975 Participation, Hmong (Asian people)
1