Subject Region
United States
58
Great Britain
17
France
15
Soviet Union
8
Germany
6
China
5
Italy
5
Africa
4
El Salvador
4
Israel
4
Argentina
3
Chile
3
Congo (Democratic Republic)
3
Cuba
3
Denmark
3
Egypt
3
Iraq
3
Jerusalem
3
Mexico
3
South Africa
3
Syria
3
Uganda
3
Angola
2
California
2
Czechoslovakia
2
Europe, Eastern
2
Germany (West)
2
Ireland
2
Islamic countries
2
Liberia
2
New York (State)
2
Pakistan
2
Peru
2
Poland
2
Rome
2
Rwanda
2
Senegal
2
South America
2
Yugoslavia
2
Africa, Sub-Saharan
1
Africa, West
1
Aleppo
1
Aleppo (Syria)
1
Ashland (Va.)
1
Asia
1
Beijing
1
Belgium
1
Belgrade
1
Bolivia
1
Bosnia and Herzegovina
1
more ...