
Formed to fight Spanish colonial rule, the Polisario turned its campaign toward Morocco and Mauritania after 1975, operating from camps near Tindouf in Algeria.
It declared a government-in-exile that controls no major city.
The Polisario holds a thin strip of desert east of Morocco's defensive berm and depends heavily on Algerian support.
Its claim is recognized by some states but rejected or frozen by many others, including a growing list backing Morocco.
In the Tindouf camps in western Algeria.
A sparsely populated buffer strip east of the Moroccan berm.