Meanwhile, refugees from the Western Sahara who fled the conflict have been subsisting in dusty camps in neighbouring Algeria, Polisario's main ally, who have closed their border with Morocco.
Polisario estimates there are 170,000 refugees in the camps in South Western Algeria who rely on international aid, distributed by the United Nations. Despite daily hardships the refugee camps are well-organised: women's rights are widely respected, literacy is above 90%, and many children go on to study at universities abroad. A fragile ceasefire exists but tensions are high. Saharaoui who remain in the occupied territories are subject to police discrimination, detention and regularly report incidents of human rights abuses.
I lived with Polisario soldiers in the desert and was able to travel with them to locations where they carried out military training and operations. I also met some incredible people working with Landmine Action who were training local Saharaoui to clear mines from what is still one of the world's heaviest land-mined areas.
To see the picture gallery I shot for the BBC, click here
For more information on Western Sahara check out the amazing work being carried out by Sandblast