Region
United States
43
Great Britain
13
Communist countries
6
France
4
Australia
3
China
3
Germany
3
Israel
3
Middle East
3
Eastern Europe
2
England
2
Europe, Eastern
2
Greece
2
India
2
New York
2
New York (State)
2
Soviet Union
2
Afghanistan
1
Albuquerque
1
Albuquerque (N.M.)
1
Badakhshān
1
Badakhshān (Afghanistan)
1
Berlin
1
Berlin (Germany)
1
Bletchley Park (Milton Keynes, England)
1
Cairo
1
Cairo (Egypt)
1
Canada
1
Egypt
1
Espionnage
1
Germany (East)
1
Germany (West)
1
Gloucester (England)
1
Himalaya Mountains
1
Hong Kong
1
Indian Ocean
1
Japan
1
Korea (North)
1
Korea (South)
1
Lisbon
1
Lisbon (Portugal)
1
Macau
1
New Mexico
1
New York (N.Y.)
1
Portugal
1
Romania
1
Rome (Italy)
1
Santa Fe
1
Santa Fe (N.M.)
1
Timor Sea
1
more ...