Region
Europe
53
United States
40
European Union countries
28
Russia (Federation)
5
China
4
Asia
3
Balkan Peninsula
3
Great Britain
3
Middle East
3
Brazil
2
Europe, Western
2
European Union
2
France
2
India
2
Iran
2
Ireland
2
Korea (North)
2
Persian Gulf Region
2
Soviet Union
2
Africa
1
Arctic regions
1
Austria
1
BRIC countries
1
Cambodia
1
Estonia
1
Europe, Eastern
1
European Economic Community countries
1
Germany
1
Germany (East)
1
International relations and terrorism
1
Japan
1
Latin America
1
Near East
1
North Atlantic Ocean
1
North Atlantic region
1
Pacific Area
1
Philosophy
1
Slovakia
1
Somalia
1
Western countries
1