Region
Soviet Union
Soviet Union --
United States
7
United States --
7
Europe, Eastern
4
Europe, Eastern --
4
Europe --
3
Europe
2
Africa, Northeast
1
Africa, Northeast --
1
Asia
1
Asia --
1
Asia, Southeastern
1
Asia, Southeastern --
1
Baltic States
1
China
1
Czechoslovakia
1
Czechoslovakia --
1
East Asia
1
East Asia --
1
Eastern Europe
1
Ethiopia
1
Ethiopia --
1
Former Soviet republics
1
Former Soviet republics --
1
Great Britain
1
Great Britain --
1
India
1
India --
1
Islamic countries
1
Islamic countries --
1
Malaysia
1
Malaysia --
1
Pacific Ocean Region
1
Pacific Ocean Region --
1
Republic
1
Romania
1
Romania --
1
Singapore
1
Singapore --
1
Syria
1
Syria --
1
United states --
1