Region
Europe --
Europe
31
United States --
10
United States
8
Soviet Union --
4
Europe, Eastern
3
Europe, Eastern --
3
European Economic Community countries --
3
Soviet Union
3
Canada --
2
European Economic Community countries
2
France
2
Germany --
2
Japan --
2
Asia
1
Asia --
1
Asia, Southeastern
1
Asia, Southeastern --
1
Britain --
1
Canada
1
Case studies
1
Developing countries
1
Eurasia --
1
European Economic community countries --
1
European Federation
1
European Union Countries --
1
European economic community countries
1
France --
1
Germany
1
Germany (West)
1
Germany (West) --
1
Great Britain --
1
History
1
Hungary --
1
Japan
1
Japan - --
1
North America --
1
North Atlantic Treaty Organization --
1
Russia (Federation)
1
Russia (Federation) --
1
United States - --
1
United states --
1