Region
United States
United States --
15
Vietnam --
3
United states --
2
Vietnam
2
1945-1975
1
Central America
1
Central America --
1
Chile
1
Chile --
1
China
1
China --
1
Eurasia --
1
Europe
1
Europe --
1
Germany
1
Germany --
1
Grenada
1
Grenada --
1
Japan
1
Japan --
1
Philippines
1
Philippines --
1
Soviet Union
1
Soviet Union --
1