Region
Yemen --
17
Yemen
9
Yemen (People's Democratic Republic) --
5
Yemen (People's Democratic Republic)
2
Yemen (Republic)
2
Africa, Northeast
1
Description and travel
1
Jordan
1
Jordan --
1
Protectorate of South Arabia --
1
Saudi Arabia
1
Saudi Arabia --
1
Somalia
1
Soviet Union
1
Soviet Union --
1
Sudan --
1
United Nations
1
United Nations --
1
United States
1
United States --
1
Yemen (Republic) --
1
Yemen (Republic) --
1
Yemen(People's Democratic Republic) --
1
Yunan
1