Region
United States
81
Syria
29
Europe
10
Korea (North)
10
Iraq
9
Afghanistan
8
Burma
8
China
8
Central America
7
Middle East
7
Turkey
7
Thailand
6
Africa
5
Cuba
5
Jordan
5
Lebanon
5
Sudan
5
Vietnam
5
Haiti
4
Indochina
4
Russia
4
Somalia
4
Cambodia
3
Caribbean Area
3
Central African Republic
3
England
3
European Union countries
3
Germany
3
Great Britain
3
India
3
Liberia
3
Mediterranean Region
3
Mexico
3
Southeast Asia
3
Spain
3
America
2
Asia
2
Bosnia and Herzegovina
2
Burundi
2
Canada
2
Colorado
2
Congo (Democratic Republic)
2
Developing countries
2
El Salvador
2
France
2
Greece
2
Guantánamo Bay Naval Base
2
Guatemala
2
Hungary
2
Israel
2
more ...