|  | Mauritania 
     
 
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| Independent from France in 1960, 
    Mauritania annexed the southern third of the former Spanish Sahara (now 
    Western Sahara) in 1976, but relinquished it after three years of raids by 
    the Polisario guerrilla front seeking independence for the territory. 
    Opposition parties were legalized and a new constitution approved in 1991. 
    Two multiparty presidential elections since then were widely seen as being 
    flawed; Mauritania remains, in reality, a one-party state. The country 
    continues to experience ethnic tensions between its black minority 
    population and the dominant Maur (Arab-Berber) populace. 
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