Mohamed Abdelaziz, right, in military fatigues, his staff and Saharawi leaders bid farewell to U.N. envoy to the Western Sahara Christopher Ross, not pictured, as he leaves the Polisario Front compound on Sunday, Feb. 22, 2009, in Rabouni, Western Sahara. The United Nations' new envoy to the Western Sahara reasserted Sunday the Saharawi people's right to self-determination, a move that could further complicate negotiations with Morocco, which refuses any such solution to the long-standing conflict.