The world of crises and disasters is changing rapidly. We are witnessing new types of adversity. In addition, modern societies have become increasingly vulnerable to disruptions, new and old. This new world demands new types of responses, which nation states cannot produce alone. Nation states will have to cooperate to protect their citizens from these threats. This article investigates the role of the European Union in the development of new safety and security arrangements. It identifies conceptual building blocks for a new security paradigm and offers design principles that can facilitate a shared way of thinking and acting in the safety and security domain