George Z. Bush wrote :

I agree with Mark. You also might want to more closely define
Western Sahara. Does it include Libya, Algeria, Chad, Morocco?
Having done that, what are you looking for in those areas?
History? Politics? Geography? Economics? Ethnicity? What?

Western Sahara wants to be a country, I don't think it designates a
part of a Continent (just as South Africa).

useful link : http://www.arso.org/index.htm