Region
Europe
11
Europe --
8
United States
3
North America --
2
United States --
2
Asia
1
Balkan Peninsula
1
Balkan Peninsula --
1
East Asia --
1
Europe, Southern
1
Europe, Southern --
1
European Union Countries --
1
Japan
1
Japan --
1
North America
1
Pacific Area --
1
Soviet Union
1
Soviet Union --
1
Turkey
1
Turkey --
1