Region
Soviet Union --
4
Asia, Southeastern --
3
Soviet Union
3
Europe --
2
Europe, Eastern
2
Europe, Eastern --
2
Malaysia
2
Malaysia --
2
Africa --
1
Asia
1
Asia --
1
Australia --
1
Burma --
1
Central America
1
Central America --
1
China
1
Ethiopia
1
Ethiopia --
1
Europe
1
Former Soviet republics
1
Former Soviet republics --
1
Germany
1
Germany --
1
Grenada --
1
Indochina
1
Indochina --
1
Japan --
1
Pacific Area --
1
Poland
1
Poland --
1
Romania
1
Romania --
1
Singapore --
1
South Asia --
1
Sudan --
1
Taiwan --
1
United States
1
United States --
1