FILE - In this May 20 2008 file photo, pro-independence Polisario Front rebel soldiers prepare tea in the Western Sahara region of Tifariti. The Moroccan military has intervened in a U.N.-patrolled border zone in the disputed Western Sahara to clear a key road it said was being blockaded for weeks by supporters of the pro-independence Polisario Front. Moroccan forces set up a security cordon overnight in the Guerguerat buffer zone on Western Sahara's southern border with Mauritania, "in order to secure the flow of goods and people through this axis," (AP Photo/Daniel Ochoa de Olza, File)
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