The Didinga (diDinga) occupy the Didinga Mountains region in Budi County, Eastern Equatoria State in South Sudan. They live in the valleys, on the plateaus and slopes, and on the adjacent plains of the region. Their neighbors include the Toposa, the Boya, Ketebo, Logir, Teuth and Dongotona peoples - groups with whom the Didinga have had frequent conflicts due to economic pressures.
The Didinga, Boya, Tennet, Murle and Mursi of Southwest Ethiopia share a language that distinguishes them from all other groups in the Sudan. Their language, often called the Murle-Didinga language, is also spoken by a group living in southwest Ethiopia. The Didinga claim to have lived in southwest Ethiopia two hundred years ago. During their migration to the Didinga Hills, the Didinga, Murle, Tennet and Boya were one group. They lived in harmony in Sudan until a hunting-party dispute caused the Murle to leave. Later, a famine caused the Boya to withdraw. Today, though the groups have separated, their language remains the same. Their most urban town is Chukudum, a historic town that hosted the first Sudan People's Liberation Movement (SPLM) National Convention in 1994.
During the Second Sudanese Civil War (1983–2005) tensions with the Dinka people built up after the Dinka-dominated SPLA forces moved into the area in 1985. They came to a head in 1999 when the Didinga officer Peter Lorot was passed over for promotion in favor of a Dinka, assassinated his rival and took to the woods with his supporters. The fighting with Lorot's forces displaced about 16,800 people from Chukudum to nearby villages in the highlands. The "Chukudom Crisis" was resolved in August 2002 during a Peace Conference organized by the New Sudan Council of Churches. An attempt by the SPLA in June 2006 to disarm Lorot's militia was ignored, with the group threatening to start fighting again.