Region
Soviet Union --
Soviet Union
12
Russia --
7
United States --
5
United States
3
Developing countries --
2
Middle East
2
Middle East --
2
Russia (Federation)
2
Russia (Federation) --
2
1945-1989
1
Asia
1
Asia --
1
Asia, Central
1
Asia, Central --
1
China --
1
Developing countries
1
East Asia
1
East Asia --
1
Europe, Eastern
1
Europe, Eastern --
1
Former Soviet republics --
1
France --
1
Germany --
1
Great Britain --
1
India
1
India --
1
Japan --
1
Korea
1
Korea --
1
Pacific Area
1
Russia
1
Soviet Union -
1
United Nations --
1
Yemen (People's Democratic Republic)
1
Yemen (People's Democratic Republic) --
1