Region
Soviet Union
Soviet Union --
70
United States
38
United States --
30
Developing countries
8
Middle East
6
Europe, Eastern
5
Europe, Eastern --
5
Middle East --
5
Russia
4
Europe
3
Europe --
3
Russia --
3
Afghanistan
2
Afghanistan --
2
Asia
2
Asia --
2
China
2
Developing countries --
2
Eastern Europe
2
Israel
2
Israel --
2
Japan
2
Japan --
2
Russia (Federation)
2
Russia (Federation) --
2
South Asia
2
Soviet Union - --
2
United states --
2
Africa
1
Africa --
1
Angola
1
Angola --
1
Asia - --
1
Asia, Southeastern
1
Asia, Southeastern --
1
Austria --
1
Canada
1
China --
1
Cuba
1
Cuba --
1
East Asia --
1
Espionage, America --
1
Former Soviet Republics
1
Former Soviet Republics --
1
Former Soviet republics --
1
Germany
1
Germany --
1
Great Britain
1
Great Britain --
1
more ...