South Sudan’s fragile peace and precarious stability are under renewed threat after the government formally charged its First Vice President, Riek Machar, with treason, murder, and crimes against humanity. Linked to a March assault by the White Army militia on a military base in Nasir—which killed more than 250 soldiers and a UN pilot—the allegations represent the most serious attempt yet by President Salva Kiir’s government to sideline his longtime rival. Seven of Machar’s allies, including former Petroleum Minister Puot Kang Choi, face similar indictments, while another 13 suspects remain at large.

Justice Minister Joseph Akech condemned the killings, persecution of civilians, and attacks on humanitarian workers as blatant violations of international humanitarian law. Machar’s Sudan People’s Liberation Movement-In Opposition (SPLM-IO), however, dismissed the charges as fabricated and a “political witch-hunt” designed to dismantle the 2018 peace agreement that ended the country’s brutal five-year civil war.

South Sudan’s peace remains dangerously fragile more than a decade after independence from Sudan. In 2013, Kiir accused Machar of plotting a coup, igniting a civil war that killed an estimated 400,000 people and displaced millions. The 2018 peace deal ushered the two rivals into a tenuous unity government, but its implementation has largely stalled. Provisions for a unified national army, long-overdue elections, and the establishment of an African Union-backed hybrid court have yet to materialize.

Instead, intermittent clashes between forces loyal to Kiir and Machar have persisted, while powerful militias continue to operate unchecked. Analysts warn that prosecuting Machar could exacerbate ethnic divisions between Kiir’s Dinka and Machar’s Nuer, reviving fears of a full-scale return to conflict.

Machar has been confined under house arrest since March, and his recent call for “regime change” has heightened fears of renewed violence. Uganda has already deployed troops to the capital, Juba, to bolster Kiir’s government, underscoring the real risk of regional escalation. The International Crisis Group notes that the legal proceedings have been gravely undermined by a lack of due process, with Machar denied access to lawyers for months and several co-defendants detained without formal charges.

Meanwhile, the humanitarian situation remains catastrophic. A UN report in September exposed how South Sudanese officials had siphoned off more than $25 billion in oil revenues since independence, diverting desperately needed funds away from hospitals, schools, and food programs. Yasmin Sooka, Chair of the UN Commission on Human Rights in South Sudan, stated that “corruption is not incidental, it is the engine of South Sudan’s decline.” Millions of South Sudanese remain deprived of basic services, and the looming threat of renewed war could displace countless more.

The charges against Machar appear less a genuine pursuit of justice than a calculated political maneuver to consolidate Kiir’s grip on power. Yet if handled recklessly, they risk reopening old wounds South Sudan has never fully healed. Ethnic divisions remain deeply entrenched, the peace deal remains incomplete, and public trust in government institutions has already been corroded by corruption and mismanagement. Escalating the confrontation with Machar could easily transform simmering resentment into widespread violence, dragging the country back into the abyss of civil war.

For ordinary South Sudanese civilians, the stakes are existential. Most live without reliable access to food, education, or healthcare, while many still bear the traumatic scars of past displacement. The country’s youth, in particular, risk inheriting not a stable nation but a relentless cycle of conflict that robs them of opportunity.

To avert relapse into war, South Sudan’s leaders must urgently set aside political rivalries in favor of inclusive dialogue and credible justice. Only through transparent, independent processes and revitalized regional mediation can the fragile peace agreement endure and civilian survival be prioritized. Machar’s trial ultimately serves as a critical test of whether South Sudan’s leaders will perpetuate cycles of rivalry or pursue genuine national reconciliation. The country’s future hinges on rejecting power plays in favor of building institutions rooted in peace, justice, and stability.