Policy Brief No.336
Prevention as a Core UN System Function: From Commitments to Capability
Sigrid Gruener and Henrik Hammargren
October 19, 2026
Prevention is central to the United Nations’ Charter purpose, reform agendas and normative commitments, yet it remains fragmented as an operational practice. This paper argues that the UN lacks a coherent system function that connects analysis, political judgement, financing, national ownership, regional engagement, and deployable support for prevention. It distinguishes prevention as an objective, prevention as a capability, and prevention as a system function and uses this distinction to explain why prevention often remains everybody’s obligation but nobody’s responsibility.
The paper recognises the Security Council’s distinct Charter role while arguing that a wider UN prevention offer is needed to support Member States directly and to assist the Council when it draws on the system. Such an offer should be nationally owned, politically accompanied, grounded in country-level engagement, regionally connected, financially supported, and reinforced by deployable Expertise on Demand. The Peacebuilding Commission, Resident Coordinator system, Peacebuilding Fund, human rights mechanisms, regional arrangements, development system, and international financial institutions all provide important building blocks, but their value for prevention is contingent upon being organised through a clearer operating logic.
The paper also underscores the urgency of securing prevention financing that is flexible, adaptive, and risk-tolerant in the context of shrinking official development assistance. Its central recommendation is that the 10th Secretary-General should make prevention a defining system objective and present a practical UN prevention offer that Member States can recognise, request, and use.