Yuai is the capital of Uror County, Jonglei State in the Greater Upper Nile region of South Sudan.

On December 20, 2013, two UNMISS helicopters were fired on by anti-government forces when evacuating military personnel and internally displaced persons in Yuai.

[7] In February 2017, Yuai, which had been peaceful throughout the South Sudanese Civil War, began experiencing clashes.

[8] The SPLA took Yuai without heavy fighting on February 15, 2017, but the SPLA-IO launched unsuccessful an attack to retake the town the next morning.

[11] Médecins Sans Frontières reported in June 2017 that 27,000 people had fled Yuai and Waat since February of that year.