justin rowlatt, bbc news, kabul.to rare access to the remote deserts of western sahara and one of the world's longest and political humanitarian humanitarian crises. the region is claimed by both morocco and the native sahrawi people. tensions between the two have caused tens of thousands of people to flee and seek refugee in the algerian desert, where, they say, the world has forgotten them. bbc‘s arabic, sally nabil, has been to the refugee camps where thousands of sahrawis have been living for decades. these refugee camps have been here for a0 years. deep within the algerian desert, across the border with morocco, tens of thousands of people are living in limbo. we visited the biggest of five camps, housing the sahrawis, or the natives of western sahara. many of them came to algeria four decades ago, fleeing a military conflict with morocco. western sahara was a spanish colony until 1975 when spain decided to leave morocco and axe the area, claiming sovereignty over it. a pro—longed war followed as the sahrawis fo