Disputes - international:
claims and administers Western Sahara whose sovereignty remains unresolved - UN-administered cease-fire has remained in effect since September 1991, but attempts to hold a referendum have failed and parties thus far have rejected all brokered proposals; Morocco protests Spain's control over the coastal enclaves of Ceuta, Melilla, and Penon de Velez de la Gomera, the islands of Penon de Alhucemas and Islas Chafarinas, and surrounding waters; discussions have not progressed on a comprehensive maritime delimitation setting limits on exploration and refugee interdiction since Morocco's 2002 rejection of Spain's unilateral designation of a median line from the Canary Islands; Morocco serves as one of the primary launching areas of illegal migration into Spain from North Africa