Western Sahara is a territory of North Africa. It is one of the most sparsely populated territories in the world, mainly consisting of desert flatlands. Western Sahara has been on the United Nations list of Non-Self-Governing Territories since the 1960s when it was a Spanish colony (when it was called Spanish Sahara). The Kingdom of Morocco and the Polisario Front independence movement (and government of the Sahrawi Arab Democratic Republic or SADR) dispute control of the territory.