This paper evaluates the United Nations' (UN) involvement and efforts in Western Sahara, and assesses its perceived effectiveness in settling this conflict in the post - Cold War international order. The dispute in Western Sahara is the most protracted conflict in the history of the UN. Its settlement would provide a crucial platform for the progress of other unresolved conflicts under UN auspices. As a mediator and an intervening party, the UN has played a major role in the dispute, especially since the establishment of the UN Mission for Western Sahara, MINURSO. After outlining the history of the Western Sahara conflict, this paper elucidates the stages the UN has managed therein, and clarifies the reasons and motives behind the deadlock ...