On April 30, the UN Security Council voted to renew the mandate of the UN Mission in South Sudan (UNMISS) for one year, extending its authorization through April 30, 2027. The resolution was adopted with 12 votes in favor and abstentions from China and Russia.
While the renewal maintains UNMISS as a central component of the international response in South Sudan, it also signals a shift in how the mission will be structured and resourced — reflecting both a more focused U.S. vision for peacekeeping and growing divisions among Council members over the scope of international engagement in the country’s political transition.
U.S. Ambassador Mike Waltz described the approach as “back to basics”: protection of civilians, support for humanitarian access and a pullback from development activities.
The Origins of the Mission
UNMISS was established in 2011 following South Sudan’s independence, the outcome of a UN-administered referendum negotiated by the U.S., UK and Norway. This was a time when the international community was focused on supporting the new country’s development of state institutions and consolidating peace after decades of conflict.
The outbreak of civil war in December 2013, however, dramatically altered the mission’s role. As violence spread and hundreds of thousands of civilians sought refuge in UN compounds, UNMISS shifted into a far more protection-focused operation, expanding its emphasis on civilian safety, humanitarian access and human rights monitoring. The mission’s direct sheltering of civilians became unprecedented in both scale and duration for a UN peacekeeping operation.
Subsequent peace efforts, including the 2018 Revitalized Agreement on the Resolution of the Conflict in South Sudan, established a framework for political transition, but implementation has been uneven at best. Core benchmarks — from institutional reforms to long-promised elections — have faced repeated delays, even as the country’s humanitarian and security conditions have steadily deteriorated.
Today, South Sudan is confronting another period of acute instability. The fragile peace process has come under renewed strain following the house arrest of opposition leader Riek Machar, while escalating clashes between government and opposition-linked forces have raised fears of a broader return to conflict. Political uncertainty surrounding presidential succession and the stalled transition process has further deepened tensions across the country.
At the same time, the humanitarian crisis continues to intensify. Nearly 10 million people require assistance, with displacement, food insecurity and civilian protection concerns exacerbated by spillover effects from the war in Sudan.
Against that backdrop, UNMISS has remained one of the few enduring stabilizing presences in the country — a role reflected in the Security Council’s repeated renewal of the mission’s mandate over the past 15 years.
Diverging Priorities
This year’s renewal process was shaped by differing perspectives within the Council, particularly regarding the extent of UNMISS support for national elections.
The United States, serving as penholder for the resolution, argued for a more streamlined mandate focused on core civilian protection and humanitarian access tasks. Citing more than 480 incidents in a six-month period in which the Government of South Sudan impeded UNMISS activities, Ambassador Waltz expressed frustration over delays to humanitarian operations and restrictions on peacekeeper mobility that have hindered the mission’s effectiveness.
Other Council members acknowledged these challenges but emphasized the importance of maintaining a more comprehensive approach, including continued support for implementing the 2018 peace agreement. For many, this includes a role for UNMISS in helping create conditions for eventual elections — a key milestone in South Sudan’s political transition.
Adjustments to Force Levels and Mandate Scope
One of the most visible outcomes of the resolution is a reduction in the mission’s authorized troop ceiling, from 17,000 to 12,500. While the U.S. had proposed a larger cut, others warned that a significant decrease could limit the mission’s ability to operate across a vast and logistically challenging environment.
In practice, the mission is already operating below its authorized ceiling, with just under 9,000 troops deployed. Financial constraints — driven largely by U.S. funding cuts across the UN system — have contributed to a reduced footprint, including across-the-board adjustments to field presence and staffing. In 2025, the United States clawed back more than $800 million in funds Congress had already approved for UN peacekeeping.
These changes are being felt acutely at the local level. In Akobo, for example — an opposition-controlled area where UNMISS has maintained an operating base and where clashes between government and opposition forces are frequent — residents have protested plans to close the site. Community members emphasized the mission’s role in supporting security and monitoring humanitarian conditions, with one local representative underscoring its importance “to ensure the… protection of civilians.”
Elections and the Peace Process
Support for elections emerged as one of the more complex issues during negotiations. Ambassador Waltz argued that the South Sudanese government has shown little political will to carry out credible elections. “Electoral preparations remain minimal to non-existent,” he said, citing a report from the Secretary-General.
Other Council members countered that elections are a core component of the 2018 peace agreement and should remain reflected in the mandate.
The final resolution includes references to elections in a more limited form, focusing on monitoring and reporting rather than extensive operational support.
In line with its approach in recent mandate renewals, the United States also sought to scale back language on women, peace and security, climate and children in armed conflict, as well as to qualify references to international humanitarian law. European members, along with Colombia, Panama and the United Kingdom, successfully pushed back on these changes.
Looking Ahead
The renewal of UNMISS underscores the mission’s continued importance — not only to international engagement in South Sudan, but to broader regional stability in East Africa. At the same time, it reflects an emerging shift in how the U.S. peacekeeping: a tighter focus on core functions like civilian protection and humanitarian access, greater skepticism toward expansive mandate elements such as electoral support and more constrained funding.
Whether this more streamlined approach proves sufficient in a complex operating environment or too austere for realities on the ground remains an open question. For now, the Security Council appears willing to test it, with UNMISS serving as an early case study.
In the year ahead, close attention will be paid to how these adjustments translate into practice — and whether the mission can deliver when the stakes are highest.
