Region
United States --
33
United States
27
Soviet Union
11
Soviet Union --
11
United states --
6
Developing countries
4
Developing countries --
3
Afghanistan
2
Afghanistan --
2
Europe
2
Europe --
2
Middle East
2
Middle East --
2
Turkey
2
Turkey --
2
Africa, Northeast
1
Africa, Northeast --
1
China --
1
Developing countries - --
1
Egypt
1
Egypt --
1
Ethiopia
1
Ethiopia --
1
Great Britain
1
Great Britain --
1
Horn of Africa
1
Horn of Africa --
1
India
1
India --
1
Pakistan
1
Pakistan --
1
Russia(Federation)
1
Russia(Federation) --
1
Russian(Federation)
1
Somalia
1
Somalia --
1
South Africa
1
South Africa --
1
United States --
1
United States - --
1