The United Nations Mission in South Sudan (UNMISS) is a United Nations peacekeeping mission for South Sudan, which became independent on 9 July 2011. UNMISS was established on 8 July 2011 by United Nations Security Council Resolution 1996 (2011).
Since December 2016, UNMISS has been led by the Secretary-General's Special Representative, South African lawyer and diplomat Nicholas Haysom. Haysom succeeded David Shearer in January 2021.
The South Sudanese Civil War was a multi-sided civil war in South Sudan fought from 2013 to 2020, between forces of the government and opposition forces. The civil war caused rampant human rights abuses, including forced displacement, ethnic massacres, and killings of journalists by various parties. Since the war's end, South Sudan has been governed by a coalition formed by leaders of the former warring factions, Salva Kiir Mayardit and Riek Machar. The country continues to recover from the war while experiencing ongoing and systemic ethnic violence.
In December 2013, President Kiir accused his former deputy Machar and 10 others of attempting a coup d'état. Machar denied trying to start a coup and fled to lead the Sudan People's Liberation Movement-in-Opposition (SPLM-IO). Fighting broke out between the Sudan People's Liberation Movement (SPLM) and SPLM-IO, igniting the civil war. Ugandan troops were deployed to fight alongside the South Sudanese government. The United Nations has peacekeepers in the country as part of the United Nations Mission in South Sudan (UNMISS).