Region
East Asia
United States
18
United States --
16
East Asia --
14
Asia, Southeastern
1
Asia, Southeastern --
1
Burma --
1
Cambodia
1
Cambodia --
1
China
1
China --
1
Japan
1
Japan --
1
Laos
1
Laos --
1
Pacific
1
Pacific --
1
Pacific Area
1
Southeast Asia
1
Southeast Asia --
1
Soviet Union
1
Soviet Union --
1
United Nations --
1
Vietnam
1
Vietnam --
1