UN Peacekeeping Mission in Western Sahara Faces Historic Shutdown After US–Russia Showdown

2026, October 31

Western Sahara / Morocco / Algeria / United States / Russia

The United Nations Security Council has failed to renew the mandate of its 35-year-old peacekeeping mission in Western Sahara, following an extraordinary diplomatic confrontation between the United States and Russia. Russia vetoed an American resolution that would have placed Morocco's autonomy proposal at the centre of negotiations, while the United States subsequently blocked Russia's alternative proposal to extend the mission for another year. The mission, established in 1991 to monitor the ceasefire and organise a referendum on the territory's future, faces the expiry of its mandate on 31 October.

The development threatens to leave the disputed territory without its longstanding UN monitoring presence, potentially increasing tensions between Morocco and the independence-seeking Polisario Front, which is supported by Algeria. Morocco welcomed the failure to renew the mission, while the Polisario Front warned that abandoning the original self-determination process could undermine regional stability. The Security Council's inability to agree on either proposal represents a significant setback for international diplomacy.