Introduction: Morocco annexed the northern two-thirds of Western Sahara (formerly Spanish Sahara) in 1976 and claimed the rest of the territory in 1979, following Mauritania's withdrawal. A guerrilla war with the Polisario Front contesting Morocco's sovereignty ended in a 1991 UN-brokered cease-fire and the nearly 1,700 mile-long defensive sand berm built by the Moroccans from 1980 to 1987 separates the opposing forces with Morocco controlling the roughly 80 percent of the territory west of the berm. A UN-organized referendum on the territory's final status has been repeatedly postponed. The UN since 2007 has sponsored intermittent talks between...

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