Subject
Cold War
History
11
Soviet Union Foreign relations
8
Intelligence service History
7
United States Foreign relations
3
China Foreign relations
2
Czechoslovakia Foreign relations
2
Czechoslovakia History
2
Espionage History
2
Europe, Eastern Foreign relations
2
Europe, Eastern History, Military
2
Soviet Union History
2
Soviet Union Military policy
2
Anthropologists Political activity History
1
Anthropology Political aspects History
1
Berlin (Germany) Strategic aspects
1
Espionage, American
1
Espionage, American History
1
Espionage, Soviet History
1
Intelligence service
1
Irregular warfare
1
Martial law
1
Military intelligence
1
Military intelligence History
1
Russia History, Naval
1
Science and state History
1
United States History
1