A system-wide implementation of the sustaining peace approach is critical to ensure that United Nations response contributes to decreasing risks for violent conflict in the longer term—including efforts to “build back better.” This report draws on interviews with 25+ individuals across the UN system and member states to highlight some of the key challenges for peacebuilding in the immediate COVID-19 period as well as in the longer term. The report documents how entities across the UN have made positive steps toward implementing a sustaining peace approach, and provides recommendations for deepening these gains across the system.