Region
Iran
United States
19
Middle East
13
Great Britain
5
Iraq
5
Saudi Arabia
3
Turkey
3
Nicaragua
2
Persian Gulf Region
2
Syria
2
Western countries
2
Arab countries
1
Constitutional history
1
Islamic countries
1
Israel
1
Italy
1
Jordan
1
Kuwait
1
Philippines
1
Russia
1
Somalia
1
Soviet Union
1
Tehran
1
Tunisia
1