UN Peacekeeping Mission in Western Sahara Ends After 35 Years

Background of the Western Sahara dispute

Western Sahara, a sparsely populated territory on the northwest coast of Africa, has been the focus of a long standing conflict since the mid twentieth century. After Spain withdrew in 1975, both Morocco and the Polisario Front, a movement representing the Sahrawi people, claimed sovereignty.

Colonial legacy

Spain administered the area as a colony for more than a century. When decolonisation was announced, the United Nations called for a self determination referendum, but the plan never materialised. The vacuum left by Spain allowed neighbouring states to assert competing claims.

Claims by Morocco and the Polisario Front

Morocco argues that historic ties and the principle of territorial integrity justify its claim. The Polisario Front, backed by Algeria, insists that the Sahrawi people have a right to independence and continues to seek a referendum on the issue.

The United Nations Mission MINURSO

Established in 1991, the United Nations Mission for the Referendum in Western Sahara (MINURSO) was tasked with monitoring the cease‑fire and preparing for a self‑determination vote. Over three and a half decades, the mission became the longest running UN peacekeeping operation.

Mandate and operations

MINURSO deployed military observers, civilian staff and police monitors to patrol a buffer zone that separates Moroccan forces from the Polisario Front. The mission also facilitated humanitarian access, de‑mining activities and confidence‑building measures.

Key achievements and limitations

While MINURSO succeeded in keeping large‑scale hostilities at bay, the promised referendum never took place. The mission faced criticism for its limited mandate, which excluded human rights monitoring, a gap that persisted despite repeated calls from the international community.

Why the mission ended after 35 years

On Sunday, the United Nations announced the cessation of MINURSO operations. Several factors contributed to this decision.

Political stalemate

Negotiations under the auspices of the UN have repeatedly stalled. Morocco insists on autonomy under its sovereignty, while the Polisario Front maintains that only a free vote can resolve the issue. The lack of consensus made it impossible to move forward with the original mandate.

Resource constraints

Funding for the mission has dwindled over the years as donor fatigue set in. Member states expressed concerns about the cost of a mission that had not achieved its core objective.

Implications for the region

The withdrawal of UN peacekeepers raises questions about security, humanitarian conditions and diplomatic efforts.

Security outlook

Without the neutral presence of MINURSO, the risk of isolated clashes could increase. Both sides maintain armed forces in the disputed zone, and any miscalculation may trigger a broader confrontation.

Humanitarian concerns

Refugee camps in Algeria, home to thousands of Sahrawi families, rely on international assistance. The end of the mission may affect the delivery of aid and the monitoring of human rights violations.

• Potential rise in border incidents.
• Reduced oversight of landmine clearance.
• Increased pressure on humanitarian organisations.

What comes next for the parties involved

Both Morocco and the Polisario Front now face renewed pressure to find a political solution. Regional organisations such as the African Union have called for renewed dialogue, while the United Nations continues to support mediation efforts.

Key steps that could shape the future include:

1. Resuming direct talks under the auspices of a neutral facilitator.
2. Exploring alternative frameworks for self‑determination, such as autonomy arrangements.
3. Engaging civil society groups from both sides to build trust.
4. Ensuring continued humanitarian access to vulnerable populations.

International actors, including the European Union and the United States, are likely to play a role in shaping any new diplomatic initiative. Their involvement could bring fresh incentives for compromise, but also adds complexity to an already delicate balance.

As the UN disengages, the eyes of the world remain on Western Sahara. The next chapter will depend on the willingness of the conflicting parties to move beyond entrenched positions and seek a durable settlement that respects the aspirations of the Sahrawi people while addressing Morocco’s security concerns.

For further context, see the United Nations overview of the mission UN Peacekeeping in Western Sahara, the African Union’s latest press release on the issue African Union statements, and analysis by the International Crisis Group Western Sahara dossier. A recent BBC report provides a snapshot of the situation on the ground BBC Africa coverage. The United States State Department also outlines its policy US policy on Western Sahara.