Region
United States
45
Iraq
21
Soviet Union
10
China
9
Afghanistan
5
Russia (Federation)
5
Africa, North
3
Algeria
3
Sahel
3
Ukraine
3
Iran
2
Africa
1
Argentina
1
Balkan Peninsula
1
Baltic States
1
Canada
1
Canal Zone
1
Central America
1
Colombia
1
Cuba
1
Dominican Republic
1
Europe
1
Europe, Eastern
1
Europe, Western
1
Great Britain
1
Latin America
1
North Macedonia
1
Pakistan
1
Panama
1
Panama Canal (Panama)
1
Persian Gulf Region
1
Western Europe
1
Western countries
1