South Sudan’s Army Opens Major Jonglei Offensive, Raising Fears of Mass Violence and Humanitarian Collapse

The government in Juba has committed to a sizable military push in central Jonglei after opposition fighters grabbed a series of outposts in recent weeks, instructing residents to leave multiple counties and telling relief agencies to exit within two days. Branded Operation Enduring Peace by army spokesmen, the campaign seeks to reverse opposition gains and reassert state control over strategic towns — moves that have clear military intent but immediate civilian consequences. The insurgent advance, driven by a mix of forces loyal to Riek Machar and autonomous Nuer militias, culminated in the seizure of Pajut on Jan. 16 and threatened approaches toward the capital, prompting government mobilization nearby. Military leaders set a short deadline to “crush” the rebellion, while regional contingents, including several thousand Ugandan troops, remain positioned to defend Juba, adding a cross-border security dimension. A widely circulated video of a senior commander encouraging forces to kill civilians and raze property has sharply elevated concerns among U.N. agencies and African Union officials about the potential for mass atrocities. Humanitarian actors and rights monitors point to a pattern of serious abuses by armed elements across South Sudan; the new rhetoric and aggressive deployments risk accelerating displacement and blocking lifesaving assistance. Deploying commanders who retain militia ties into ethnically sensitive areas also raises the prospect of retaliatory cycles between Shilluk, Nuer and other communities, amplifying fragmentation on the ground. From a military standpoint, government reliance on air strikes and concentrated ground operations may achieve tactical objectives, yet the civilian toll and damage to infrastructure will complicate any stabilization effort. Politically, the offensive further strains an already fragile implementation of the 2018 power-sharing framework, while prosecutions and suspensions of opposition figures compound distrust and reduce incentives for negotiation. The near-term trajectory points to increased humanitarian need, constrained access for relief organizations, and a higher probability of regional spillover if violence intensifies. Unless political mediation is rapidly revived and explicit safeguards for civilians are enforced, the operation is likely to degrade prospects for reconciliation and extend instability across multiple states.