The Daasanech (also known as Geleb) are traditionally a pastoral people but have become agropastoral, having lost the majority of their lands over the past fifty years, primarily as a result of exclusion from their traditional Kenyan lands, on both sides of Lake Turkana, and the ‘Ilemi Triangle’ of Sudan. They have lost numbers huge numbers of cattle, goats and sheep and many have moved to areas closer to the Omo, where they attempt to grow enough crops to survive. There is much disease along the river (including tsetse fly making this solution to their economic plight difficult. Like many pastoral peoples in this region, the Dassanech are a highly egalitarian society, with a social system involving age sets and clan lineages.