In severe emergency situations, members of certain groups are exposed to heightened protection risks and further marginalization or even exclusion in accessing humanitarian assistance. Due to the current crisis in Somalia, the most vulnerable categories face the risk of being neglected; it is thus essential to ensure that the key protection concerns during an emergency situation are kept at the forefront of all humanitarian interventions. Unaccompanied children, women and children, GBV survivors and minorities are just some of the groups of particular concern. In order to raise awareness of specific protection risks and to ensure equal access to humanitarian assistance for persons of concern, the Protection Cluster has developed this protection mainstreaming tool.