Ilemi Triangle
disputed territory between South Sudan and Kenya
The Ilemi Triangle, sometimes called only Ilemi, is a disputed area in East Africa, claimed by both Kenya and South Sudan. Arbitrarily defined, it measures about 11,000 square kilometres (4,200 sq mi). The territory also borders Ethiopia and, despite use and trespass into the triangle by border tribes from within Ethiopia, the Ethiopian government has not made any official claim on the area, instead agreeing that the land was Sudanese territory in the 1902, 1907, and 1972 treaties.
Kenya now has de facto control of all the territory in the Ilemi Triangle up to the northern 1950 Sudanese Patrol Line. The dispute arose from the 1914 treaty in which a straight parallel line was used to divide territories that were both part of the British Empire. However the Turkana people—nomadic herders—continued to move to and from the border and traditionally grazed in the area.
The perceived economic marginality of the land as well as decades of Sudanese conflicts are two factors that have delayed the resolution of the dispute.
Peoples
The nomadic Toposa move in the territory between South Sudan and Kenya and have been vulnerable to attacks from surrounding peoples. The other peoples in this area are the Didinga in South Sudan and Turkana in Kenya, and the Nyangatom (Inyangatom) who move between South Sudan and Ethiopia, and the Dassanech who live east of the triangle in Ethiopia.
These pastoral people have historically engaged in raids on livestock.
This brief starts where responsible research should: with the source description of “Ilemi Triangle” as disputed territory between South Sudan and Kenya. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the general reference register because the source frames it as disputed territory between South Sudan and Kenya. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 17, 2026. The linked authority identifier is Q973527. Authority coordinates are 4.991, 35.327. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1902, 1907, 1972 and 1950.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Ilemi Triangle” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.