South Sudanese Civil War
SSgt Robert L. Fisher III · Public domain
The South Sudanese Civil War was a multi-sided conflict that lasted from 2013 to 2018, pitting government forces against opposition groups. The war led to widespread human rights violations, such as forced displacement, ethnic massacres, and the killing of journalists by multiple sides. After the war ended, South Sudan came under a coalition government formed by former rival leaders Salva Kiir Mayardit and Riek Machar. The country is still recovering from the conflict, while facing ongoing and systemic ethnic violence.
In December 2013, President Kiir accused his former deputy, Machar, along with ten others, of plotting a coup. Machar denied the accusation and fled, later leading the Sudan People’s Liberation Movement-in-Opposition (SPLM-IO). Fighting erupted between the Sudan People’s Liberation Movement (SPLM) and the SPLM-IO, sparking the civil war. Ugandan troops were sent to support the South Sudanese government, and the United Nations maintained peacekeepers through its mission, UNMISS.
The first ceasefire was agreed upon in January 2014, but fighting resumed, followed by several more failed ceasefires. Mediation efforts involved IGAD, the African Union, the United Nations, China, the European Union, the United States, the United Kingdom, and Norway. A “Compromise Peace Agreement” was signed in August 2015. Machar returned to Juba in 2016 and was appointed vice president. After renewed fighting in Juba, the SPLM-IO retreated to the previously peaceful Equatoria region. Kiir replaced Machar as first vice president with Taban Deng Gai, splitting the opposition, and rebel infighting became a major part of the conflict. A rivalry between Kiir and former army chief Paul Malong Awan also led to clashes. A ceasefire took effect in August 2018, and the war officially ended on September 12, 2018, with the signing of the Revitalized Agreement on the Resolution of the Conflict in the Republic of South Sudan (R-ARCSS). On February 22, 2020, Kiir and Machar struck a unity deal and formed a coalition government.
By April 2018, an estimated 400,000 people—10.6% of them children—had been killed in the war. This death toll includes major atrocities like the 2013 Nuer massacre and the 2014 Bentiu massacre. While both sides had supporters from various ethnic groups, tensions between the Dinka and Nuer were especially high and often violent. Kiir’s Dinka ethnic group has been accused of attacking other groups, and Machar’s Nuer group has been accused of attacking the Dinka. Over 4 million people were displaced, including about 1.8 million internally and roughly 2.5 million who fled to neighboring countries, mainly Uganda and Sudan. Fighting in the agricultural south caused the number of people facing starvation to rise to 6 million, leading to a famine in 2017. The country’s economy was also devastated; by October 2017, the IMF reported that real income had halved since 2013 and inflation exceeded 300% per year.
**Background**
**Previous rebellions**
The Comprehensive Peace Agreement, signed on January 9, 2005, between the SPLM and the Government of Sudan ended the Second Sudanese Civil War, which had started in 1983. The agreement created a Southern Sudan Autonomous Region run by the SPLM, with a promise of a 2011 independence referendum. During the six-year autonomy period, the desire for independence kept internal SPLM conflicts in check. The end of the war allowed for much greater development of oil fields in southern Sudan. Between 2006 and 2009, oil sales brought an average of US$2.1 billion annually to the autonomous region. Disputes among SPLM leaders over how to distribute oil revenue caused recurring tensions. A system emerged where SPLM leaders used oil wealth to buy loyalty from troops and the public, creating intense competition for control of the oil.
In 2010, after a disputed election, George Athor led the South Sudan Democratic Movement in rebellion. That same year, a faction called the Cobra Faction, led by David Yau Yau, rebelled, accusing the government of bias against the Murle people. Yau Yau’s faction signed a ceasefire in 2011 and was reintegrated into the army, but he defected again in 2012. After the army’s 2010 disarmament campaign, which involved widespread abuses against the Shilluk people, John Uliny of the Shilluk began a rebellion leading the Upper Nile faction of the South Sudan Democratic Movement. Gabriel Tang, who had led a militia allied to Khartoum during the Second Sudanese Civil War, clashed regularly with the SPLA until 2011, when his soldiers were reintegrated into the national army. In 2011, Peter Gadet led a rebellion with the South Sudan Liberation Army but was reintegrated the same year. Former rebellious militias were recruited into the South Sudan Liberation Army, a policy described as a “bad culture” and an incentive to rebel.
In the 2011 referendum, 98% of voters supported independence, and South Sudan became an independent state on July 9, 2011.
**President consolidates power**
After rumors of a planned coup surfaced in Juba in late 2012, President Salva Kiir began reorganizing the senior leadership of his government, party, and military on an unprecedented scale. In January 2013, Kiir replaced the inspector general of the national police service.
- displaced
- more than 4 million
Quick Facts
- Conflict
- South Sudanese Civil War
- Part Of
- Ethnic violence in South Sudan
- Date
- 15 December 2013 – 12 September 2018 / (month1=12 · day1=15 · year1=2013 · month2=09 · day2=12 · year2=2018)
- Location
- South Sudan with spillovers into Uganda
- Result
- See §2018 peace agreement and continuing conflicts
- Combatants Header
- Participants
- Combatant2
- United Nations UNMISS / United Nations Regional Protection Force / Rwanda / Ethiopia
- Commander2
- United NationsNew Zealand David Shearer (from 2016) / United NationsDenmark Ellen Margrethe Løj (2014–2016) / United NationsNorway Hilde Frafjord Johnson (until 2014)
- Strength1
- SPLA: 150,000 (2015)IISS · 2015 / Uganda: 5,000+ (2014)
- Strength2
- 12,523 (2015) / 15,000 soldiers (2019) / 1,800 police (2019)
- Strength3
- SPLM-IO: At least 10,000 defectors / Nuer White Army: 25,000 (2013) / NAS: 20,000+ (NAS claim, 2017) / SSPA: 15,000 (SSPA claim, 2017)
- Casualties1
- 10,659 killed, 9,921 wounded (January–October 2014) / Uganda 21 killed (by January 2014)
Facts from the source article.
Lore & Background
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, and the United Nations has peacekeepers as part of the United Nations Mission in South Sudan (UNMISS). Negotiations were mediated by IGAD, the African Union, the United Nations, China, the European Union, the United States, the United Kingdom and Norway. Kiir replaced Machar as First Vice President with Taban Deng Gai, splitting the opposition, and rebel in-fighting became a major part of the conflict. A rivalry between the President and former army chief Paul Malong Awan also led to fighting. On 22 February 2020, rivals Kiir and Machar struck a unity deal and formed a coalition government.
Reader's Guide
The South Sudanese Civil War was a devastating conflict that erupted from political and ethnic tensions within the newly independent nation. More than 4 million people were displaced, with about 1.8 million internally displaced and about 2.5 million fleeing to neighboring countries, especially Uganda and Sudan. The war's legacy includes ongoing and systemic ethnic violence, particularly between the Dinka and Nuer groups, and a coalition government formed by former rivals Kiir and Machar.
Did You Know?
- More than 4 million people were displaced, with about 2.5 million fleeing to neighboring countries, especially Uganda and Sudan.
Origins & the Road to War
The conflict traces its roots to Sudan's long history of military instability—twenty coup attempts since 1956 independence, punctuated by brief democratic interludes. The immediate trigger was a power struggle within the transitional government set up after the 2021 military coup. Tensions centered on whether the Rapid Support Forces, a paramilitary outfit born from the Janjaweed militias that al-Bashir had deployed against Darfuri rebels in 2003, would be absorbed into the regular army. General Hemedti, who had commanded the Janjaweed since its 2013 rebranding into the RSF, resisted this integration. When negotiations broke down, fighting erupted on 15 April 2023. The RSF struck government installations in Khartoum first, and the battle quickly consumed the capital before spreading westward into Darfur. Smaller armed factions—including SPLM-North splinter groups, the Tamazuj militia, and the Darfur Joint Protection Force—aligned with one side or the other, deepening the conflict's complexity.
Shifting Frontlines & the Fall of El Fasher
The war's military trajectory saw dramatic reversals. In the opening months, the RSF seized most of Darfur, pushed into Kordofan and Gezira, and captured large swaths of Khartoum, forcing al-Burhan's government to relocate to Port Sudan. By late 2023, the RSF held the initiative across multiple fronts. The SAF, however, clawed back territory in 2024, recapturing Omdurman and eventually retaking Khartoum by March 2025. Yet the most harrowing episode unfolded in El Fasher, the SAF's final Darfur stronghold. Under siege since April 2024, the city fell on 26 October 2025. What followed was, by one estimate, a massacre killing between 60,000 and 70,000 civilians in the city and surrounding villages; satellite imagery analysis suggested the death toll could reach 150,000, making it the single largest massacre of the twenty-first century. Despite these shifts, no durable ceasefire has held, and the war grinds on.
A Humanitarian Abyss
The human cost has been staggering. As of mid-2026, more than 14 million people have been forcibly uprooted, with 4.5 million crossing borders as refugees—one of the largest displacement crises in modern history. Famine has been confirmed in multiple regions, and 25 million Sudanese face severe food insecurity. Four million children suffer acute malnutrition, and 770,000 of them are at imminent risk of death. Hospitals have closed en masse, water and medicine are in critical shortage, and disease outbreaks spread unchecked. In Khartoum State alone, 61,000 people have perished, 26,000 of them direct victims of violence. Sexual violence has been pervasive. The UN's humanitarian under-secretary, Tom Fletcher, called Darfur the "epicenter of human suffering in the world." Half the population now requires urgent assistance, and the total death toll—spanning combat, starvation, and disease—remains impossible to fully quantify, with thousands still missing.
Foreign Entanglement & the Question of Justice
The war has drawn in a web of external actors. Russia, Turkey, Saudi Arabia, Iran, Egypt, Ethiopia, and the UAE have all exerted influence, while spillover from conflicts in the Central African Republic, Chad, and Libya compounds regional instability. The UAE has been particularly scrutinized: despite sanctions imposed by the US, UK, EU, and Canada on entities linked to both warring factions, the UAE was found to be shipping Chinese-made weaponry to the RSF in violation of those restrictions. The RSF largely finances its operations through gold exports routed to the UAE. On the justice front, the ICC has indicted RSF leaders for genocide, war crimes, and crimes against humanity stemming from their Darfur operations. On 7 January 2025, the United States formally determined that the RSF and allied militias committed acts of genocide, particularly in the killing of Masalit civilians. International calls have mounted for halting arms flows, protecting humanitarian workers, and supporting the flood of refugees.
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Frequently Asked Questions
Who governs South Sudan after the civil war?
The country is now led by a coalition government that unites the former opposing factions. Salva Kiir Mayardit and Riek Machar, who headed rival sides during the conflict, share responsibility in this post-war political arrangement.
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