MINURSO

On April 29, 1991, the UN’s Security Council established the Mission for the Referendum in Western Sahara. The plan was to designate a Special Representative to help Morocco establish whether they were going to choose independence or integration. The UN would also let Wester Saharans vote in an effort to extend peace. MINURSO would have a personnel of around 1,000 people to help transition the tumultuous area to one of peace.

On May 24, 1991, a ceasefire was ordered by the Security General to take place September 6th. During the time leading up until September 6th, because hostilities began. 100 military observers were placed in the territory to oversee the ceasefire. This number increased to 228, and other support staff was sent.

http://www.un.org/en/peacekeeping/missions/minurso/background.shtml