This special issue focuses on the understanding and application of two closely related concepts, “do no harm” (DNH) and “conflict sensitivity”, and their critical engagement in the academic literature. Mary Anderson published her seminal book Do No Harm: How aid can support peace – or war in 1999, which popularised the idea of conflict sensitivity in development, humanitarian, and peacebuilding practice. Since then, many models and tools have been published and considerable efforts have been…