Region
United States --
7
United States
6
Great Britain
3
Great Britain --
3
Developing countries
2
Europe --
2
Soviet Union
2
Soviet Union --
2
Asian politics
1
Germany
1
Germany (East)
1
Germany (East) --
1
Germany (West)
1
Germany (West) --
1
Germany --
1
Japan --
1
Russia
1
Russia --
1
Spain --
1
United states --
1
Yugoslavia
1
Yugoslavia --
1