The Board of Peace, established under UN Security Council Resolution 2803, represents a novel—and contentious—experiment in international peacemaking that goes far beyond stabilizing and rebuilding Gaza. Critics have raised alarms that the body could undermine the United Nations by creating a parallel structure that eclipses the Security Council’s authority. Yet the more compelling case is that the Board could serve as a valuable complement to the UNSC rather than a rival. In climate-related conflicts — an increasingly urgent Council priority — the Board could lead targeted, on-the-ground adaptation efforts, translating high-level resolutions into tangible outcomes. Handled with care, however, the Board could breathe new life into a collective security system that historically has too often stalled.