Subject
History
6
Armed Forces
5
Soviet Union Military policy
5
Europe, Eastern Foreign relations
4
Europe, Eastern History, Military
4
Soviet Union Foreign relations
4
Soviet Union History
4
Europe Defenses
3
Cold War
2
Cold War Military intelligence
2
Espionage, American
2
Finance
2
Military policy
2
United States Armed Forces
2
Air defenses
1
Economic assistance, Communist
1
Europe Military relations
1
Firepower
1
Intelligence service History
1
Martial law
1
National security
1
United States Defenses
1