King Hassan II declared the organisation of a peaceful march to force Spain to start negotiations on the status of the territory, to which Spain finally agreed. A round of talks between Spain, Morocco and Mauritania were held in Madrid and culminated in a tripartite agreement, becoming known as the Madrid Accords On 16 November 1975, where Spain formally ceded the administration of the northern two thirds of the territory to Morocco, while the southern third was to be administrated by Mauritania. Algeria protested against the agreement, and president Boumedienne retaliated by expelling all Moroccans living in Algeria.[citation needed] The text of the Madrid Accords have never been made public.