Region
Soviet Union
United States --
65
Soviet Union --
63
United States
62
China
4
Europe
3
Europe --
3
Europe, Eastern
3
Europe, Eastern --
3
Afghanistan --
2
Asia
2
China --
2
Developing countries
2
Israel
2
Israel --
2
Middle East
2
Middle East --
2
Russia --
2
Syria
2
Syria --
2
United states --
2
Afghanistan
1
Afghanistan --
1
Africa
1
Africa --
1
Asia --
1
Asia --
1
Austria --
1
Cuba
1
Cuba --
1
Developing countries --
1
Eastern Europe
1
Espionage, America --
1
Korea
1
Korea --
1
Latin America
1
Latin America --
1
Pakistan
1
Pakistan --
1
Russia
1
Soviet --
1
Soviet Union --
1
United Nations
1
United States --
1
Vienna
1