Humanitarian emergencies are increasingly protracted and characterised by multiple compounding crises. International social security standards provide a roadmap for building national social protection systems. In the Arab States region, the International Labour Organization has been critically assessing how to apply these standards across the humanitarian, development, and peace nexus when countries face protracted crises. This article presents case studies in four countries: Iraq, Jordan, Lebanon, and the Occupied Palestinian Territory. It addresses questions on how to strengthen humanitarian–development transitions using international standards, where entry points exist or challenges remain, and how these transitions may contribute to strengthening peace through social cohesion.