Region
United States
147
Iraq
13
Great Britain
10
Germany
7
Soviet Union
6
Russia (Federation)
5
Russia
3
Vietnam (Democratic Republic)
3
Austria
2
Europe, Eastern
2
Former Soviet republics
2
Germany (West)
2
Israel
2
Poland
2
South Sudan
2
Ukraine
2
Afghanistan
1
Africa, West
1
Africa, Western
1
Atlantic Ocean
1
Chad
1
Communist countries
1
Cuba
1
Eastern Front
1
Europe
1
Foreign countries
1
France
1
Guantánamo Bay Naval Base
1
Japan
1
Korea (North)
1
Mali
1
Pacific Area
1
Pakistan
1
Philippines
1
Pāṭa
1
Western Front
1
Yemen (Republic)
1