Picture released by the Algerian Press Agency showing (L to C) Mahfoud Ali Beiba, head of the Polisario Front to the Manhasset Morocco-Saharawi negotiations, Mohamed Abdelaziz, Secretary General of the Saharawi Arab Democratic Republic (RASD), Abdelkader Taleb Omar, Prime Minister of the RASD are pictured before the opening of the 12th Polisario congress held in Tirafiti, 14 December 2007, Western Sahara, some 550 kilometers from Al-Ayoun. Morocco appealed, 12 December for the United Nations to intervene to prevent a meeting of Western Sahara's pro- independence Polisario Front in the key buffer zone of Tifariti, arguing it violated a 1991 ceasefire. Officials at R are unidentified. Getty Images logo Getty Images 26 months ago

Picture released by the Algerian Press Agency showing (L to C) Mahfoud Ali Beiba, head of the Polisario Front to the Manhasset Morocco-Saharawi negotiations, Mohamed Abdelaziz, Secretary General of the Saharawi Arab Democratic Republic (RASD), Abdelkader Taleb Omar, Prime Minister of the RASD are pictured before the opening of the 12th Polisario congress held in Tirafiti, 14 December 2007, Western Sahara, some 550 kilometers from Al-Ayoun. Morocco appealed, 12 December for the United Nations to intervene to prevent a meeting of Western Sahara's pro- independence Polisario Front in the key buffer zone of Tifariti, arguing it violated a 1991 ceasefire. Officials at R are unidentified.