Short introduction to Western Sahara

Morocco virtually annexed the northern two-thirds of Western Sahara (formerly Spanish Sahara) in 1976, and the rest of the territory in 1979, following Mauritania's withdrawal. A guerrilla war with the Polisario Front contesting Rabat's sovereignty ended in a 1991 cease-fire; a referendum on final status has been repeatedly postponed and is not expected to occur until at least 2002.

Source: World Factbook

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Western Sahara on Wikipedia
Lots of user contributed links and information on Western Sahara.