Region
United States --
3
China
2
China --
2
United States
2
Afghanistan --
1
Asia --
1
Balkan Peninsula --
1
Bosnia and Hercegovina --
1
Bosnia and Herzegovina
1
Egypt --
1
Foreign countries
1
France --
1
Germany
1
Germany --
1
Great Britain
1
Great Britain --
1
Korea
1
Middle East --
1
Vietnam
1
Vietnam --
1