RABAT, Morocco — France has thrown its support behind Morocco's autonomy plan for the disputed Western Sahara, shifting a decades-old position and adding itself to a growing list of countries to align with Morocco as a United Nations-mediated peace process remains stalled.
In a letter to King Mohammed VI, France's President Emmanuel Macron called the plan that Morocco proposed in 2007 to offer the region limited autonomy under its sovereignty the ''only basis'' to solve the conflict. The shift deals a blow to the pro-independence Polisario Front, which has for decades claimed to be the legitimate representative of the indigenous Sahrawi people.
''The present and future of Western Sahara fall within the framework of Moroccan sovereignty,'' Macron wrote in a letter made public on Tuesday. ''France intends to act consistently with this position at both national and international level.''
Macron's move is unlikely to change the key tenets of the territorial dispute but could deepen France ties with Morocco, which has long blamed it for drawing the colonial borders it sees as the root of the conflict. France signaled earlier this year that it was open to investing in Moroccan projects in the disputed territory.
The move could strain diplomatic relations in North Africa, further alienating both France and Morocco from Algeria, which supports the Polisario Front's claims and allows it to operate as a self-declared government in exile from refugee camps within its borders.
It follows similar shifts from the United States, Israel, Spain and a growing list of African nations that have established consulates in the territory.
In a statement, Moroccan King Mohammed VI's Royal Cabinet called France's shift ''a significant development.'' A high-ranking Moroccan official who spoke on the condition of anonymity noted France's role as a permanent member of the United Nations Security Council and called it ''a game-changer'' amid an international shift toward Morocco's position.
The move was preemptively rebuked by both Algeria and the Polisario Front in the days leading up to the publication of letter, which Algeria said it was made aware of by France in the days prior.