<Li> South Sudanese Civil War </Li> <P> The South Sudanese Civil War (sometimes known as the Third Sudanese Civil War) is a conflict in South Sudan between forces of the government and opposition forces . </P> <P> In December 2013, President Kiir accused his former deputy Riek Machar and ten others of attempting a coup d'état . Machar denied trying to start a coup and fled to lead the SPLM--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). In January 2014 the first ceasefire agreement was reached . Fighting continued and would be followed by several more ceasefire agreements . Negotiations were mediated by "IGAD +" (which includes the eight regional nations called the Intergovernmental Authority on Development as well as the African Union, United Nations, China, the EU, USA, UK and Norway). A peace agreement known as the "Compromise Peace Agreement" was signed in August 2015 . Machar returned to Juba in 2016 and was appointed vice president . Following a second breakout of fighting within Juba, the SPLM - IO fled to the surrounding and previously peaceful Equatoria region . Machar was replaced by Kiir as First Vice President by Taban Deng Gai, splitting the opposition, and rebel in - fighting has become of major part of the fighting . </P> <P> Up to 300,000 people are estimated to have been killed in the war, including notable atrocities such as the 2014 Bentiu massacre . Although both men have supporters from across South Sudan's ethnic divides, subsequent fighting has had ethnic undertones . Kiir's Dinka ethnic group has been accused of attacking other ethnic groups and Machar's Nuer ethnic group has been accused of attacking the Dinka . More than 3.5 million people have been displaced in a country of about 12 million, with more than 2.1 million internally displaced and more than 1.5 million having fled to neighboring countries, especially Kenya, Sudan, and Uganda . Fighting in the agricultural heart in the south of the country has soared the number of people facing starvation to 6 million with famine breaking out in some areas . </P>

The root cause of conflict in south sudan
find me the text answering this question