Nuer people.

The Nuer people are an ethnic group native to eastern Africa. In particular, the Nuer reside in the Sudd region, a swampy flood plain created by the White Nile tributary of the Nile River. Both the Sudd and the Nuer people are primarily located in the nation of South Sudan, although the Nuer also have a strong presence in Ethiopia. According to estimates from the Central Intelligence Agency (CIA), the total population of the Nuer people in 2016 was about two million. The Nuer are best known in the West due to extensive sociological studies conducted by British anthropologist E.E. Evans-Pritchard in the 1940s and 1950s.