Subject Region
Europe
19
United States
11
European Union countries
5
Germany
5
Middle East
5
Africa
4
Palestinian National Authority
4
Turkey
4
Vietnam
4
China
3
Israel
3
Africa, North
2
Australia
2
Great Britain
2
Jordan
2
Malaysia
2
Netherlands
2
Nicaragua
2
Palestine
2
Québec (Province)
2
Sarawak
2
Soviet Union
2
Spain
2
Sudan
2
Ukraine
2
Africa, East
1
Australie
1
Baltic States
1
Burkina Faso
1
Canada
1
Confederate States of America
1
Cyprus
1
Developing countries
1
Europe, Eastern
1
Europe, Western
1
France
1
Greece
1
Holy Roman Empire
1
Iraq
1
Japan
1
Mexican-American Border Region
1
Mexico
1
North America
1
Pakistan
1
Poland
1
Quebec (Province)
1
Scotland
1
Volhynia
1
Volhynia (Ukraine)
1
Yugoslavia
1