The Polisario Front, Frente Polisario, FRELISARIO or simply POLISARIO, from the Spanish abbreviation of Frente Popular de Liberación de Saguía el Hamra y Río de Oro ("Popular Front for the Liberation of Saguia el-Hamra and Río de Oro" Al-Jabhat Al-Sha'abiyah Li-Tahrir Saqiya Al-Hamra'a wa Wadi Al-Dhahab), is a Sahrawi rebel national liberation movement aiming to end Moroccan presence in the Western Sahara. It is an observer member of the Socialist International.