Résumé : The magnitude of the Covid-19 pandemic questioned how societies prepare for and respond to disasters. Everywhere in the world, communities are discussing how it is possible to provide better security and how to manage risks and hazards. This research is devoted to understanding how the European Union performs a role in managing disasters in the Member State’s territories and outside. Not only pandemic has shown that disasters do not stop at borders but also that common actions are needed to save lives and foster a return to normality. At the EU level, Member States are bounded by the Solidarity Clause (Article 222 of the TFEU) to provide assistance to another EU country which is the victim of a natural or man-made disaster. This research applies the framework of International Emergency/Disaster Management to the European Union to understand the process of institutionalization of EU capacities. In the first chapter, I introduce the concept of International Emergency/Disaster Management as a framework to study how international organizations are involved in fighting natural and man-made disasters. Then, I analyze how global and regional organizations perform this role in order to refine the framework so that it can be applied to the European Union. Finally, I divide the EU action into the four phases of the Disaster Management Cycle (mitigation, preparedness, response, and recovery) to demonstrate that the European Union emergency management System has followed different logics of institutionalization. Therefore, I propose an approach to studying civil protection that takes into account not only institutions related to civil protection but also the EU action to reduce the possibility of a disaster occurring and – if it is not possible its consequences.