Geographic Subject
Europe
Soviet Union
United States
7
Europe, Eastern
5
China
4
Great Britain
4
Russia (Federation)
4
Germany
3
Italy
3
Russia
3
Albania
2
Austria
2
Czechoslovakia
2
France
2
Germany (East)
2
Japan
2
Vietnam (Democratic Republic)
2
Yugoslavia
2
Baltic States
1
Bosnia and Hercegovina
1
Czech Republic
1
Europe, Central
1
Finland
1
Iran
1
North America
1
Poland
1
Pskovska︠i︡a oblastʹ (Russia)
1
Sardinia (Italy)
1
Sweden
1