Region
United States
209
Congo (Democratic Republic)
141
China
19
Vietnam (Democratic Republic)
16
Iraq
14
Middle East
12
Afghanistan
11
Balkan Peninsula
9
Egypt
9
Zimbabwe
8
Arab countries
7
Asia, Central
7
Burma
7
Rwanda
7
Africa
6
Iran
6
Russia (Federation)
6
Europe
5
Europe, Eastern
5
Haiti
5
Hong Kong
5
Hong Kong (China)
5
Sudan
5
Vietnam
5
Africa, Sub-Saharan
4
European Union countries
4
Latin America
4
Southern States
4
Tunisia
4
Yemen (People's Democratic Republic)
4
Africa, West
3
Belarus
3
Brazil
3
Burundi
3
Central America
3
Cuba
3
Great Lakes Region (Africa)
3
Kosovo (Republic)
3
Mexico
3
Nepal
3
Nigeria
3
Northern Ireland
3
Pakistan
3
Serbia
3
South Africa
3
Soviet Union
3
Ukraine
3
Yemen (Republic)
3
Africa South of the Sahara
2
Africa, Central
2
more ...