Region
1945-1989
1
Afghanistan
2
Afghanistan --
1
Afghanistan --
5
Africa
2
Africa --
2
Africa, Northeast
1
Africa, Northeast --
1
Africa, Southern --
1
Angola
1
Angola --
1
Arctic Ocean
2
Artic regions
1
Asia
18
Asia --
1
Asia - --
1
Asia --
16
Asia, Central
2
Asia, Central --
3
Asia, Southeastern
6
Asia, Southeastern --
6
Austria --
1
Baltic States
1
Barents Sea
1
Barents Sea --
1
Canada
1
Caribbean Area --
1
China
28
China --
28
Communist countries
1
Cuba
1
Cuba --
1
Czechoslovakia
1
Czechoslovakia --
1
Developing countries
13
Developing countries --
7
East Asia
5
East Asia --
5
Eastern Europe
2
Egypt
1
Egypt --
1
Espionage, America --
1
Ethiopia
1
Ethiopia --
1
Europe
13
Europe --
13
Europe, Eastern
21
Europe, Eastern --
24
European Union
1
Finland --
1
more ...