An indigenous Sahrawi woman stands inside her shelter, which was damaged by flood last October, in a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. UN Secretary General Ban Ki-moon is scheduled to visit the Sahrawi refugees in south-west Algeria's Tindouf region. The Sahrawi refugee camps in Tindouf, Algeria, are a collection of refugee camps, set up in the Tindouf Province, Algeria in 1975-76 for Sahrawi refugees fleeing from Moroccan forces, who advanced through Western Sahara during the Western Sahara War. With most refugees still living in the camps, the refugee situation is among the most protracted ones worldwide. The limited opportunities for self-reliance in the harsh desert environment have forced the refugees to rely on international humanitarian assistance for their survival. However, the Tindouf camps differ from the majority of refugee camps in the level of self-organization. Most affairs and camp life organization is run by the refugees themselves, with little outside interference. (Photo by Zohra Bensemra/Reuters)





An indigenous Sahrawi girl plays next to her tent in a refugee camp of Al Smara in Tindouf, southern Algeria March 2, 2016. (Photo by Zohra Bensemra/Reuters)





An indigenous Sahrawi girl poses for a photograph near her tent in a refugee camp of Al Smara in Tindouf, southern Algeria March 2, 2016. (Photo by Zohra Bensemra/Reuters)





Indigenous Sahrawi women walk in a refugee camp of Al Smara in Tindouf, southern Algeria March 2, 2016. (Photo by Zohra Bensemra/Reuters)





An indigenous Sahrawi girl looks over a window in a refugee camp of Al Smara in Tundouf, southern Algeria March 2, 2016. (Photo by Zohra Bensemra/Reuters)





Sahrawi refugees' tent is pictured in a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





An indigenous Sahrawi teacher walks at a school in a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





Indigenous Sahrawi girls hug each other beside their school in a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





An indigenous Sahrawi teacher attends a class at a school in a desert refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





An indigenous Sahrawi teacher attends a class at a school in a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





An indigenous Sahrawi teacher checks her schoolchildren's workbooks as she sits at her desk next to a photograph of Mohamed Abdelaziz, president of the Sahrawi Arab Democratic Republic, at a school in a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





A cat is seen at a window of the mud house in a Sahrawi refugee camp of Al Smara in Tindouf, southern Algeria March 2, 2016. (Photo by Zohra Bensemra/Reuters)





A graffiti is seen of the wall of the National Union of Sahrawi Women headquarters in a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





A boy plays as the Sahrawi flag is seen at a nursery in a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





Indigenous Sahrawi women walk in a refugee camp of Al Smara in southern Algeria March 2, 2016. (Photo by Zohra Bensemra/Reuters)





An indigenous Sahrawi boy stands at his newly built house in a refugee camp of Al Smara in Tindouf, southern Algeria March 2, 2016. (Photo by Zohra Bensemra/Reuters)





An indigenous Sahrawi couple carries a milk can beside their shelter in a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





Indigenous Sahrawi people are seen under their national flag at a nursery in a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





An indigenous Sahrawi boy is seen at a nursery in a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





Tents are seen in a Sahrawi refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





Indigenous Sahrawi schoolchildren fill their glasses with milk at a classroom in a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





A graffiti is seen at the entrance of the National Union of Sahrawi Women headquarters in a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





An indigenous Sahrawi woman walks into a nursery in a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. The writing in Arabic reads: “Our children of today are our future men”. (Photo by Zohra Bensemra/Reuters)





An indigenous Sahrawi girl attends a class at a school in a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





An indigenous Sahrawi teacher attends a class at a school in a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





An indigenous Sahrawi woman washes her laundry in a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





An indigenous Sahrawi schoolchild fills his glass with milk at a classroom in a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





An indigenous Sahrawi woman stands beside a wall of her shelter in a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





Indigenous Sahrawi girls play near their tent in a refugee camp of Al Smara in Tindouf, southern Algeria March 2, 2016. (Photo by Zohra Bensemra/Reuters)





Indigenous Sahrawi girls play on an improvised see-saw at a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





An indigenous Sahrawi woman walks at a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





An indigenous Sahrawi woman walks with her child at a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





A general view of a part of the refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)





An indigenous Sahrawi woman divides her donated flour into parts at a refugee camp of Boudjdour in Tindouf, southern Algeria March 3, 2016. (Photo by Zohra Bensemra/Reuters)