Region
Soviet Union --
66
Soviet Union
43
United States --
21
United States
19
Asia
7
Asia --
7
China --
4
Asia, Southeastern
3
Asia, Southeastern --
3
China
3
Europe --
3
Europe, Eastern
3
Europe, Eastern --
3
Pacific Area
3
Pacific Area --
3
Russia (Federation) --
3
Europe
2
India
2
India --
2
Middle East
2
Middle East --
2
Russia (Federation)
2
Yugoslavia
2
Yugoslavia --
2
Afghanistan --
1
Asia, Central
1
Asia, Central --
1
East Asia
1
East Asia --
1
Egypt
1
Egypt --
1
Israel
1
Israel --
1
Latin America
1
Latin America --
1
Persian Gulf Region --
1
Persian Gulf region
1
Singapore
1
Singapore --
1
Soviet Unions
1
Syria
1
Syria --
1
Vietnam
1
Vietnam --
1