Region
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Pacific area --
1
Pakistan
9
Pakistan --
8
Punjab
1
Punjab (India) --
1
Singapore
4
Singapore --
3
South Africa
1
South Africa --
1
South Asia
2
South Asia --
2
South China Sea --
1
South East Asia
1
Southeast Asia
3
Southeast Asia --
4
Soviet Union
1
Soviet Union --
1
Sri Lanka
2
Sri Lanka --
3
Taiwan
1
Taiwan --
1
United States
9
United States - --
1
United States --
8
United states --
2