Region
Soviet Union
Soviet Union --
56
United States
34
United States --
26
Developing countries
7
Middle East
6
Europe, Eastern
5
Europe, Eastern --
5
Middle East --
5
Europe
3
Asia
2
Asia --
2
China
2
Eastern Europe
2
Europe --
2
Israel
2
Israel --
2
Japan
2
Japan --
2
Russia
2
Russia (Federation)
2
Russia (Federation) --
2
Russia --
2
South Asia
2
Soviet Union - --
2
United states --
2
Asia - --
1
Asia, Southeastern
1
Asia, Southeastern --
1
Austria --
1
Canada
1
China --
1
Cuba
1
Cuba --
1
Developing countries --
1
East Asia --
1
Espionage, America --
1
Former Soviet Republics
1
Former Soviet Republics --
1
Former Soviet republics --
1
Great Britain
1
Great Britain --
1
India
1
India --
1
Iraq
1
Iraq --
1
Korea
1
Korea --
1
Outer space --
1
Pakistan
1
more ...