Subject Region
United States
144
Latin America
23
Israel
21
Pakistan
17
Argentina
16
Great Britain
14
Soviet Union
14
China
12
Russia (Federation)
12
Chile
11
Afghanistan
10
Brazil
9
Europe
9
Mexico
9
France
8
Guatemala
8
India
8
Japan
8
Turkey
8
Africa
7
Egypt
7
Germany
7
Europe, Eastern
6
European Union countries
6
Iran
6
Middle East
6
Peru
6
Germany (West)
5
Indonesia
5
Iraq
5
Russia
5
Cuba
4
Georgia
4
South Africa
4
America Latina
3
Arab countries
3
Caimanera (Cuba)
3
Colombia
3
Confederate States of America
3
Former Soviet republics
3
Honduras
3
North Carolina
3
Punjab
3
South America
3
Southern Cone of South America
3
Taiwan
3
Venezuela
3
Africa, North
2
Alabama
2
Algeria
2
more ...