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Ilemi Triangle

The Ilemi triangle region is at the north-western corner of Lake Turkana.

The Ilemi Triangle is an area of disputed land in East Africa. Arbitrarily defined, it measures between 10,320 and 14,000 square kilometers (3,985 and 5,405 sq mi). Named after Anuak chief Ilemi Akwon, the territory is claimed by South Sudan and Kenya and borders Ethiopia. Despite use and raids by tribes within Ethiopia, the Ethiopian government has never made an official claim on any of the Ilemi and in fact agreed that the land was all Sudanese in 1902, 1907, and 1972 treaties.[1][2][3]

Kenya now has de facto control of the area. The dispute arose from unclear wording of a 1914 treaty which attempted to allow for the movements of the Turkana people—nomadic herders who had traditionally grazed 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 1
  • History 2
    • 1920s 2.1
    • 1930s 2.2
    • 1940s 2.3
    • 1950s 2.4
    • 1960s and 1970s 2.5
    • 1990s to present 2.6
  • See also 3
  • External links 4
  • References 5


The nomadic Turkana 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 and Topasa in South Sudan, 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 razzia raids on livestock. While in the past they used traditional weapons, since the nineteenth century onwards the use of firearms has been common.


A map of the Ilemi Triangle showing 1938 "red line", 1947 "blue line" and Sudan's 1950 patrol line (green).

To the southeast of the Ilemi, Ethiopian emperor Menelik laid claim to Lake Turkana and proposed a boundary with the British to run from the southern end of the lake eastward to the Indian Ocean, which was shifted northward when the British and Ethiopian governments signed a treaty in 1907, reaffirmed by a 1970 Ethiopia-Kenya treaty.

The Ethiopia-Sudan boundary, the "Maud Line", was surveyed by Captain Philip Maud of the Royal Engineers in 1902-3. It was adopted by Anglo-Ethiopian Agreement treaty of December 6, 1907 between Ethiopia and British East Africa. Though vague on the precise details of where the border was located, it clearly placed the entire Ilemi on the Sudan side of the Ethiopia-Sudan line.

In 1914 the Uganda-Sudan Boundary Commission agreement provided Sudan access to Lake Turkana via the now-dry Sanderson Gulf at the southeast corner of the Ilemi. After the First World War the Ethiopians armed the Nyangatom and Dassanech peoples, whereby the traditional raids turned into battles where hundreds died.


Representatives of Sudan, Uganda and Kenya in April 1924 in Kitgum agreed that Sudan should hand over some territory north of the 1914 line to either Kenya or Uganda, who could give protection to the Turkana people. However, Britain was jointly administering Sudan with Egypt, and did not want to pressure Egypt to concede Sudanese territory since relations were poor after Sir Lee Stack, the British Governor-General of Sudan, was assassinated in Cairo in November 1924.

Sudan in 1928 agreed to allow Kenyan military units across the 1914 line to protect the Turkana against the Dassanech and Nyangatom, although it cost £30,000 per year. In 1929 Kenya began subsidising Sudan to occupy the territory, which it did not wish to continue because of the perceived useless nature of it. In 1931 it was Sudan which agreed to subsidise Kenya to occupy the territory.

The Ilemi Triangle in different maps


In 1931 the Red Line (the Glenday Line) was drawn to represent the northern boundary of Turkana grazing. "In a series of agreements from 1929 to 1934, the Governor-General of the Sudan and the Governor of Kenya agreed that this Red Line should be accepted as the Turkana grazing boundary."[4] [5]

After Italy invaded Ethiopia in 1936, Italy briefly claimed the area of the Ilemi triangle. A joint Kenya-Sudan survey team in 1938 demarcated the "Red Line" or "Wakefield Line", very close to the delimitation a few years earlier of this Red Line, marking the northern limit of grazing of Turkana.

While Egypt and Britain agreed on this, Italy did not. The Dassanetch and Inyangatom had suffered because of the Italian occupation, and wished to recoup their losses by making a raid against the Turkana. Several hundred Turkana people were killed in a raid in July 1939 by the Inyangatom and Dassanech peoples. Italy gave up their claim on the Ilemi subsequently, and allowed the British to respond with a raid on the Inyangatom and Dassanech supported by the Royal Air Force.


British troops of the King's African Rifles occupied Ilemi in 1941 after the British invasion of Ethiopia during World War II. The KAR passed through Ilemi on their way to southwestern Ethiopia. In 1944 Britain's Foreign Office surveyed a "blue line" which was further northwest than the "red line".


Sudan, in 1950, established their own patrol line even further northwest into Sudan where they prohibited Kenyan and Ethiopian pastoralists from moving west of it, giving up policing and development to the area east of it. However, that Kenya-Sudan agreement specified that this patrol line in no way affected sovereignty; that it was not an international boundary, and money continued to be paid to Kenya to patrol this Sudanese territory.

There was fighting between 1949 and 1953 as Sudan attempted to keep the Nyangatom behind this line. After Sudanese independence in 1956, Sudan has not administered Ilemi or much of the southern part of the country due to the First Sudanese Civil War there.

1960s and 1970s

In 1967 President Jomo Kenyatta's administration had made overtures to the British in order to secure support for the cession of the Triangle to Kenya. The British were unresponsive and the results amounted to little. The matter was sidelined and successive Kenyan administrations have been seemingly willing to accept the territorial status quo and their de facto territorial control, even if the Kenyan influence did diminish after the relocation of the Sudan People's Liberation Army to Sudan in the 1980s-90s.[6]

A 1978 topographic map of the Ilemi triangle.

In 1964 Kenya and Ethiopia reaffirmed their boundary, confirming Kenyan sovereignty to Namuruputh, which is just south of the southeastern point of the triangle. In 1972 a Sudan-Ethiopia boundary alteration did not solve the Ilemi issue because it did not involve Kenya, but did confirm that Ethiopia had no claim to the Ilemi Triangle.

In 1978 Kenya began to unilaterally regard the Turkana grazing line of 1938 (Wakefield line) as an international boundary between Kenya and Sudan.[7]

1990s to present

In the 1990s Ethiopia armed the Dassanech with Kalashnikov automatic rifles, perhaps in response to Kenyan government arming in 1978 of the Turkana. Beginning in the 1960s, many Kenyan maps have marked the Red Line as the official boundary of Kenya, rather than a dotted boundary which it had been previously. More recently, most Kenyan maps depict the 1950 patrol line, the furthest northwest, as the boundary. There was a question as to whether a secret agreement was broached between Kenya and South Sudan to allow Kenya to administer this territory, in return for support in the Sudanese Civil War.[8] In recent decades, the countries involved have had other priorities, delaying a resolution to the issue.

With the independence of South Sudan in 2011, the Sudanese claim to the Ilemi Triangle was transferred to the new national government in Juba.

See also

External links

  • Scholarly Article about the Triangle
  • suggesting that Kenya's claim is weakSudan TribuneArticle in the
  • Ilemi Triangle, Robert O. Collins, Uni of California
  • The Ilemi Triangle Sovereigntyscape (Part One), Menas Borders, October 2010


  1. ^  
  2. ^ Collins, Robert O. (2004). The Ilemi Triangle in: Annales d'Ethiopie. Volume 20, année 2004. pp. 5–12. Retrieved 2011-06-17. 
  3. ^ The National Geographic Society in recent works has included an Ethiopian claim, later removed due to lack of sources. The World Factbook confirms that Ethiopia does not claim the territory
  4. ^ Council of Ministers: The Kenya/Sudan Boundary; Memorandum by the Minister for Defence. UK National Archives, Kew, WO Papers 136; C.M. 62(3) 1/4/62. 1962. pp. 1–2. 
  5. ^ Menas Borders. [1] "The Ilemi Triangle Sovereigntyscape (Part One)." October 2010, Retrieved on 2011-01-19.
  6. ^ Menas Borders. [2] "The Ilemi Triangle Sovereigntyscape (Part One)." October 2010, Retrieved on 2011-01-19.
  7. ^ The Ilemi Triangle 'Sovereigntyscape'
  8. ^ Collins, Robert O. Civil wars and revolution in the Sudan: essays on the Sudan, Southern Sudan and Darfur, 1962 - 2004. Tsehai Publishers, 2005, ISBN 0974819875 , pg. 373.

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