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Subject
- History6
- Espionage, Soviet5
- Military policy5
- Spies4
- Defenses2
- Military relations2
- Soviet Union. Komitet gosudarstvennoĭ bezopasnosti2
- World politics2
- Aeronautics, Military1
- Armed Forces1
- Berg, Iosef Veniaminovich, 1916-19981
- Blunt, Anthony, 1907-19831
- Burgess, Guy, 1911-19631
- Cairncross, John1
- Communists1
- Deterrence (Strategy)1
- Electric engineers1
- Foreign relations1
- Government policy1
- Great Britain. MI51