This comprehensive toolkit, developed through extensive and inclusive consultations with field protection clusters and partners at global level, expands on key roles and responsibilities of Humanitarian Coordinators, Humanitarian Country Teams, Inter-Cluster Coordination Groups, Clusters, as well as donors in mainstreaming protection.It thus promotes stronger collaboration among relevant actors across sectors to mitigate threats, reduce vulnerabilities and enhance capacities in humanitarian action by providing concrete guidance and tools to mainstream protection into organizational programming and throughout the humanitarian programme cycle.