The Reflections series synthesizes lessons from past evaluations to support organizational learning about what works and what doesn't. This paper examines past evaluations to provide seven on the humanitarian-development-peace (HDP) nexus approach:

1. Building on the UNDP mandate and partnerships
2. Adapting coordination frameworks
3. Overcoming funding silos
4. Localization lens in HDP nexus approach
5. Navigating the 'big P' approach
6. Sustaining peace through 'little p' actions
7. Supporting women's role in conflict resolution

This paper draws on 65 evaluations and studies published between 2016 and 2024. The sources include country-level and thematic evaluations conducted by the UNDP Independent Evaluation Office, quality-assured decentralized evaluations commissioned by UNDP country offices, and key evaluative studies published in academic journals and in grey literature.