Region
United States
640
Europe
24
Afghanistan
13
Iran
13
Soviet Union
12
China
11
Russia (Federation)
11
Iraq
10
Bosnia and Herzegovina
9
East Asia
9
Middle East
7
Asia
6
Mexican-American Border Region
6
Persian Gulf Region
6
Asia, Eastern
5
Latin America
5
Poland
5
Colombia
4
Czech Republic
4
Hungary
4
Japan
4
Pacific Area
4
South Asia
4
Africa
3
Canada
3
India
3
Saudi Arabia
3
Southeast Asia
3
Africa, West
2
Africa, Western
2
Caribbean Area
2
Europe, Central
2
Europe, Eastern
2
European Union countries
2
Florida
2
Korea (North)
2
Korea (South)
2
New Mexico
2
North America
2
Pakistan
2
Somalia
2
Washington (D.C.)
2
Abkhazia (Georgia)
1
Africa, Northeast
1
Africa, Southern
1
Andes Region
1
Arab countries
1
Arizona
1
Asia, Central
1
Black Sea Region
1
more ...