The Turkana are a Nilotic people native to the Turkana County in northwest Kenya, a semi-arid climate region bordering Lake Turkana in the east, Pokot, Rendille and Samburu people to the south, Uganda to the west, to the South Sudan and Ethiopia to the north.

The Toposa are a Nilotic ethnic group in South Sudan, living in the Greater Kapoeta region of Eastern Equatoria state. They have traditionally lived by herding cattle, sheep and goats, and in the past were involved in the ivory trade. They have a tradition of constant low-level warfare, usually cattle raids, against their neighbors.