Region
United States
12
United States --
8
Middle East
3
Afghanistan
2
Afghanistan --
2
Developing countries
2
Developing countries --
2
Middle East --
2
Africa, Northeast
1
Caucasus, Northern
1
Central America
1
Great Britain
1
Lebanon --
1
Libya
1
Libya --
1
Nigeria
1
Russia(Federation) --
1
Somalia
1
Sudan --
1
United states --
1
Yemen
1
Yunan
1