Its capital is Gueréda, 165 kilometres (100 mi) northeast of Abéché.[1] The population consists primarily of non-Arab tribes.[1] Dar Tama is the historical home of the Tama, who make up the majority of the population.[1] The Zaghawa make up a significant minority and migrated during the Sahelian drought in the 1980s.[1] Both are non-Arab tribes.[2] Chadian president Idriss Déby is from the Zaghawa tribe.[2]