Region
Vietnam
2
Vietnam --
2
Africa, Sub-Saharan
1
Algeria
1
Congresses
1
Developing countries
1
Egypt
1
Egypt --
1
Europe, Eastern
1
Guatemala
1
Hungary
1
Iran
1
Korea (North)
1
Korea (North) --
1
Korea (South)
1
Laos
1
Laos --
1
Malaysia
1
Near East
1
Near East --
1
Northern Ireland
1
Soviet Union
1
Turkey
1
United States
1