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Western Sahara UN Mission MINURSO Ends After 35 Years as Russia Vetoes U.S. Resolution Backing Morocco

The UN peacekeeping mission began liquidation Nov. 1 after Russia blocked a U.S. draft and a rival Russian text failed, leaving no monitors between Morocco and the Polisario.

By Ecker Geopolitics Desk · Reviewed and edited by Brendan Ecker

November 2, 2026 · Updated 11/2/2026, 2:05:51 PM · 8 min read

The United Nations peacekeeping mission in Western Sahara, known as MINURSO, formally entered its "liquidation phase" on Sunday, Nov. 1, 2026, after its mandate expired at midnight on Saturday, Oct. 31 (New York time, ET). The 35-year-old mission lapsed because the UN Security Council failed on Friday, Oct. 30, to agree on its future, UN News reported.

Russia vetoed a U.S.-drafted resolution that would have extended the mission for a year, dropped "Referendum" from its name and endorsed Morocco's autonomy plan as the most feasible solution. A rival Russian draft for a plain one-year renewal then fell far short of the nine votes required. UN Secretary-General António Guterres warned of the risk of escalating hostilities and urged all sides to "exercise maximum restraint."

The outcome hands Morocco a diplomatic win it had openly sought, leaves the Algeria-backed Polisario Front without a UN monitoring presence on the ground, and marks another U.S.-Russia clash at the Security Council.

Key Facts

When: Security Council vote Friday, Oct. 30, 2026 (afternoon, New York); mandate expired at midnight Oct. 31 ET; liquidation began Nov. 1.
Where: Western Sahara, a territory roughly the size of Britain; MINURSO headquarters in Laayoune, nine team sites and a liaison office in Tindouf, Algeria.
Who: U.S. Ambassador Mike Waltz; Russian Ambassador Vassily Nebenzia; Secretary-General António Guterres; Personal Envoy Staffan de Mistura; Morocco; Algeria; the Polisario Front.
What: Russia vetoed the U.S. draft (11 in favor, 1 against, 3 abstentions); the Russian draft received 3 votes in favor, 1 against and 11 abstentions.
Status: Verified. The mission is being wound down; UN diplomacy continues through the Personal Envoy.
Key numbers: About 200 civilian and military staff from more than 35 countries; 155 military personnel; a $62 million budget this fiscal year; 20 personnel died during the mission.

What Happened

The Council met Friday afternoon to vote on two competing drafts, Security Council Report noted. The U.S. text, as the "penholder" on the file, would have renewed MINURSO until Oct. 31, 2027, renamed it the UN Mission in Western Sahara (MINUSO), asked the Secretary-General for proposals on the mission's structure, staffing and resources by Jan. 30, 2027, and asked the UN refugee agency to complete registration of refugees in the Tindouf area within six months. Earlier versions had called autonomy the "only basis for negotiation" and sought a phase-down of uniformed personnel, language softened in later revisions.

The U.S. draft won 11 votes, with one against and three abstentions, but the no vote came from Russia, which counts as a veto, Western Sahara Resource Watch reported. Supporters included fellow permanent members France and the United Kingdom, according to Reuters. The Russian alternative, a one-page renewal with no changes, drew three votes in favor, one against and 11 abstentions, Reuters reported; the United States cast the vote against it, according to WSRW.

Nebenzia said Moscow opposed the U.S. text because it favored one side. "The Security Council cannot automatically predetermine matters relating to sovereignty," he told the Council, according to Al Jazeera. The Russian delegate also described the move as "a life-saving veto, so to speak," UN News reported.

Waltz countered that Russia had used its veto to "preserve the letter R," Al Jazeera reported, a reference to the word "referendum" in the mission's name.

"This is a resolvable conflict." — U.S. Ambassador Mike Waltz, explanation of vote, Oct. 30, 2026

In his explanation of vote, Waltz argued UN officials had warned for roughly 30 years that a referendum was unlikely and said Washington "will not support a status quo that condemns all of them to another five decades," referring to Sahrawis in the refugee camps.

On Sunday, Guterres's spokesperson Stéphane Dujarric said the Secretary-General "remains concerned about the security situation throughout the territory," Al Jazeera reported. A smaller team reporting to the UN Department of Operational Support will oversee the disposal of equipment.

Timeline

Date/Time (ET)	Event
1975	Spain withdraws; Morocco claims the territory
1991	Security Council Resolution 690 creates MINURSO to monitor a ceasefire and organize a referendum
2007	Morocco presents its Autonomy Proposal
2020	Polisario resumes armed struggle; U.S. recognizes Moroccan sovereignty
Oct. 31, 2025	Resolution 2797 backs autonomy as the basis for talks and orders a strategic review
Oct. 13, 2026	Secretary-General sends the strategic review to Council members
Oct. 22, 2026	U.S. circulates zero draft; Polisario says it cannot serve as a basis for talks
Oct. 30, 2026, afternoon	Russia vetoes U.S. draft; Russian draft fails
Oct. 31, 2026, midnight	MINURSO mandate expires
Nov. 1, 2026	Liquidation phase begins; Guterres urges restraint

Who's Involved

United States (Ambassador Mike Waltz): drafted the resolution; argues the referendum is obsolete and autonomy under Moroccan sovereignty is the path to a deal.
Russia (Ambassador Vassily Nebenzia): vetoed the U.S. draft as one-sided; had abstained on MINURSO renewals since 2018, per WSRW.
Morocco: its royal palace called the non-renewal a "significant development" and said the mission should leave in the coming days, Reuters reported. Rabat says it remains committed to the ceasefire.
Algeria: its Foreign Ministry expressed "deep regret" and blamed what it called the "excessive bias" of the U.S. draft toward Morocco, Al Jazeera reported.
Polisario Front: its UN representative Sidi Omar thanked Russia for the veto. In an Oct. 22 letter, the Front warned that adopting the U.S. zero draft unchanged would leave it no choice but to disengage from the peace process.
United Nations: Guterres said the departure "does not abrogate" the Sahrawi people's right to self-determination; Personal Envoy Staffan de Mistura continues his work.

The Ground Picture

Western Sahara is a sparsely populated stretch of Atlantic coast and desert between Morocco and Mauritania. A long land-and-sand wall, or berm, built by Morocco splits it in two. Morocco effectively controls about 80% of the territory, according to El País as summarized by Newscord, with the remainder east of the berm held by the Polisario.

Between 100,000 and 140,000 Moroccan military personnel are reportedly stationed in the territory, while at least 170,000 people live in refugee camps around Tindouf in Algeria, Al Jazeera reported. Low-level fighting has continued since 2020. MINURSO's observers were split between four team sites west of the berm and five to the east, according to UN News, making them one of the few neutral eyes on both sides.

Oxfam warned that "the loss of MINURSO's monitoring and de-escalation functions risks undermining security and stability," Reuters reported.

Geopolitical Players

Russia and China both opposed predetermining the outcome during negotiations, Security Council Report said. Russia pushed for a straightforward renewal, while China wanted MINURSO's mandate and name retained and called for negotiations on an equal footing. The episode comes days after the G20 foreign ministers' meeting in Atlanta ended without a joint statement amid U.S.-Russia friction.

France and the United Kingdom backed the U.S. text. Bahrain, Colombia, Denmark, the Democratic Republic of the Congo, Greece, Latvia, Liberia and Panama also appeared supportive before the vote, though Denmark wanted self-determination to guide the process. Somalia favored keeping the mission as it was and Pakistan called for a mutually acceptable solution.

Spain, the former colonial power, sits in the Group of Friends on Western Sahara with France, Russia, the UK and the U.S., which the U.S. consulted before circulating its draft.

What It Means for the United States

Benefits and opportunities

The vote showed broad Council support, 11 of 15 members, for Washington's approach, consistent with U.S. recognition of Moroccan sovereignty in 2020.
Morocco, a long-standing U.S. partner in North Africa, gets the outcome it sought, which may strengthen security and trade cooperation with Rabat.
Analysis: ending a mission that cost about $62 million a year removes a recurring UN peacekeeping expense, a share of which is paid by U.S. assessed contributions.

Risks and dangers

Without UN monitors, a low-intensity conflict could escalate, a risk flagged by Guterres and Oxfam, in a region where U.S. partners Morocco and Algeria are rivals.
Russia used its veto to position itself alongside Algeria and the Polisario, giving Moscow a new diplomatic opening in North Africa.
The Polisario has threatened to disengage from talks, which could stall the U.S.-backed autonomy process rather than accelerate it.

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What's Next

The UN has asked all parties to cooperate so the withdrawal can be completed "in an orderly way as soon as possible," UN News reported, with assets belonging to contributing member states sent home, according to Newscord's summary of the UN statement. Moroccan media report that King Mohammed VI has called for the dossier to be closed at the UN. Diplomacy now runs through Staffan de Mistura; no date for a new round of talks has been announced. Ecker Geopolitics could not independently verify reports of any military movements since the mandate lapsed.

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Sources

Western Sahara · MINURSO · Morocco · Polisario Front · Algeria · UN Security Council · Russia · Mike Waltz