Region
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Pacific Area
5
Pacific Area --
7
Pacific Coast (Asia) --
1
Pacific area --
2
Russia (Federation)
2
Russia (Federation) --
2
Russia --
1
Singapore
1
Singapore --
2
South Asia
1
South Asia --
2
Southeast Asia
9
Southeast Asia --
19
Soviet Union
1
Soviet Union --
1
Taiwan
1
Taiwan --
1
Thailand --
1
United States
13
United States --
14
Vietnam
1
Vietnam --
1