In recent years, the concept of resilience has become increasingly relevant in discussions of national and international security. It factors into political discourse when it comes to hybrid challenges, crisis management, technological vulnerabilities and climate change. It provides a comprehensive definition of the robustness of states and organisations in the face of multidimensional challenges but is often conceptually vague and can only be verified in hindsight. This study examines resilience primarily from the perspective of security policy and crisis management.