Oblast
Arab countries
1
Asia
1
Balkan Peninsula
3
Brazil
1
Carpathian Mountains
1
China
2
Developing countries
2
Eastern Front
1
Europe
5
Europe, Central
13
Europe, Eastern
85
Europe, Western
1
European Union countries
5
Former Soviet republics
11
Germany
2
Great Britain
1
Hungary
1
Latin America
2
Lithuania
1
Poland
2
Russia (Federation)
4
Scandinavia
1
Soviet Union
8
Ukraine
1