Subject
Cold War
15
History
8
Soviet Union Foreign relations
8
Intelligence service History
5
United States Foreign relations
4
World politics
3
China Foreign relations
2
Espionage History
2
Europe, Eastern Foreign relations
2
Europe, Eastern History, Military
2
Intelligence service
2
Soviet Union History
2
Soviet Union Military policy
2
Berlin (Germany) Strategic aspects
1
Cold War in literature
1
Czechoslovakia Foreign relations
1
Czechoslovakia History
1
Espionage, American
1
Europe, Eastern History
1
Europe, Eastern Politics and government
1
Influence
1
Martial law
1
Military history in literature
1
Soviet Union Politics and government Forecasting
1
United States Politics and government
1