South Sudan: Battlefield Momentum Meets Political Rupture as Peace Deal Frays

Opposition Advances and a Call to March on Juba

South Sudan’s armed opposition, aligned with the SPLA-IO, has claimed the capture of Pajut, a strategic town in Duk County on the main axis linking Jonglei to Bor, and ordered forces to advance toward Juba. The move signals a shift from localized clashes to a posture that tests the capital’s security perimeter. United Nations officials have warned that such actions undermine the 2018 Revitalized Peace Agreement, which halted a five-year civil war but left core provisions unimplemented.

Political Shock in Juba: Interior Minister Dismissed

Against this military backdrop, Salva Kiir dismissed Interior Minister Angelina Teny, a senior opposition figure and the wife of detained First Vice President Riek Machar. No official reason was given. Kiir appointed Aleu Ayieny Aleu, a long-time loyalist who previously held the same post during the early phase of the civil war.

The Interior Ministry was explicitly allocated to the opposition under the power-sharing framework. Its reassignment to a presidential ally is therefore widely read as a direct breach of the agreement’s spirit—if not its letter—and a consolidation of executive control at a moment of heightened insecurity.

Machar Detained, Power-Sharing Hollowed Out

Machar, who joined the unity government in 2020 after years leading a rebel movement, remains in detention with close associates on treason charges linked to violence in Nasir (Upper Nile). Opposition figures argue the arrests—and now Teny’s removal—have hollowed out the power-sharing bargain, leaving the opposition inside government without real authority while its armed wing regains leverage on the ground.

Teny’s effective marginalization predated her dismissal. She had been largely absent from the Interior Ministry since March 2025, when Machar was placed under house arrest; security services reportedly seized her communications equipment in June 2025. Her removal formalizes a de facto reality: opposition control of key ministries has been eroded well before battlefield dynamics turned.

Fighting Spreads as Security Arrangements Stall

Forces loyal to Machar, alongside allied White Army fighters, have made gains in Jonglei, while clashes have also flared in Unity, Upper Nile, and parts of Central and Eastern Equatoria. Government reinforcements have been rushed toward Bor to prevent a cascading advance along the Nile corridor.

These developments underscore a central weakness of the 2018 deal: critical security sector reforms—especially the unification of forces—were deferred and remain incomplete. As a result, political shocks in Juba translate quickly into military movement in the states, and vice versa.

Opposition Messaging: Pressure, Not Compromise

Opposition spokesperson Pal Mai Deng described Teny’s dismissal as “a clear sign of desperation,” arguing the government is “crumbling under pressure” as security deteriorates. The messaging suggests the opposition views current gains not as leverage for renewed talks, but as evidence that coercive pressure can rebalance a political settlement it considers broken.

South Sudan’s conflict risk is uniquely systemic. Any escalation threatens:

• Oil flows, the state’s fiscal lifeline and a regional supply consideration;
• Aid access, already constrained by insecurity and bureaucratic controls;
• Contract enforcement, particularly in energy and infrastructure, where political guarantees underpin commercial viability.

Analytical Outlook

The convergence of opposition battlefield momentum and executive centralization in Juba marks a dangerous inflection point. Removing an opposition-held ministry while Machar remains detained narrows pathways back to negotiated de-escalation. With security arrangements unfinished, each political move now carries military consequences.

Absent rapid confidence-building steps—credible releases, restoration of agreed portfolios, and movement on force unification—the trajectory points toward managed confrontation, not renewed unity. In South Sudan, that pattern historically ends with widened fronts, disrupted oil output, and a costly reset of the very institutions the peace agreement was meant to stabilize.