Region
Germany
Germany --
France
4
France --
4
Europe --
3
United States
3
United States --
3
Europe
2
Germany (East) --
2
Germany (West) --
2
United states --
2
Austria
1
Austria --
1
Europe, Central
1
Europe, Central --
1
Franco - German war --
1
German
1
German --
1
Germany (East)
1
Germany (West)
1
Great Britain
1
Great Britain --
1
Heads of state --
1
Japan
1
Japan --
1
Soviet Union
1
Soviet Union --
1