The biggest concentration of Sahrawi refugees was created in 1975–76, when Sahrawi refugees were fleeing from Moroccan forces, who advanced through Western Sahara during the Western Sahara War between Morocco and Sahrawi Polisario Front. Those refugees ended up in Sahrawi refugee camps in the Tindouf Province, Algeria. With most refugees still living in the camps, the refugee situation is among the most protracted ones worldwide.