Region
United States
167
China
15
Russia (Federation)
12
Yemen (Republic)
10
Iraq
7
Mexican-American Border Region
5
Syria
5
Ukraine
5
Belarus
4
Turkey
4
Mali
3
Nicaragua
3
Sudan
3
Afghanistan
2
Ethiopia
2
Europe
2
Balkan Peninsula
1
Burma
1
Colombia
1
European Union countries
1
Iran
1
Michigan
1
Middle East
1
Outer space
1
Soo Locks
1
Venezuela
1