Region
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Rome
3
Russia (Federation)
8
Rwanda
1
Saudi Arabia
1
Singapore
2
South America
4
South Asia
1
South China Sea
1
Southeast Asia
4
Southern Hemisphere
1
Soviet Union
12
Spain
3
Sweden
1
Taiwan
6
Taiwan Strait
1
Tennessee
1
Thailand
1
Tokyo
2
Tokyo (Japan)
2
Uganda
1
Ukraine
2
United States
342
Venezuela
5
Vietnam
2
Western Europe
1
Western Hemisphere
1
Würzburg
1
Yugoslavia
1
Zambia
1
Zimbabwe
1