Region
United States
41
Europe
32
European Union countries
18
Russia (Federation)
13
Soviet Union
9
Germany
6
Asia, Central
4
Southeast Asia
4
Great Britain
3
Asia
2
Balkan Peninsula
2
China
2
Europe, Western
2
France
2
Ireland
2
Japan
2
Mediterranean Region
2
Middle East
2
Ukraine
2
Africa
1
Austria
1
Baltic States
1
Communist countries
1
Czech Republic
1
East Asia
1
Egypt
1
Europe, Central
1
Finland
1
Former Soviet republics
1
Germany (East)
1
Germany (West)
1
History
1
Hungary
1
International relations and terrorism
1
North America
1
Norway
1
Pakistan
1
Persian Gulf States
1
Poland
1
Russia
1
Scandinavia
1
Spain
1
Sweden
1
Taiwan
1
Transcaucasia
1
Turkey
1
Western countries
1