Conflict over cultural heritage has increasingly become a standard part of war. Today, systematic exploitation, manipulation, attacks, and destruction of cultural heritage by state and non-state actors form part of most violent conflicts across the world. Such acts are often intentional and based on well-planned strategies for inflicting harm on groups of people and communities. With this increasing awareness of the role cultural heritage plays in war, scholars and practitioners have progressed from seeing conflict-related destruction of cultural heritage as a cultural tragedy to understanding it as a vital national security issue. There is also a shift from the desire to protect cultural property for its own sake to viewing its protection as connected to broader agendas of peace and security. Concerns about cultural heritage have thus migrated beyond the cultural sphere to worries about the protection of civilians, the financing of terrorism, societal resilience, post-conflict reconciliation, hybrid warfare, and the geopolitics of territorial conflicts. This volume seeks to deepen public understanding of the evolving nexus between cultural heritage and security in the twenty-first century. Drawing on a variety of disciplines and perspectives, the chapters in this volume examine a complex set of relationships between the deliberate destruction and misuse of cultural heritage in times of conflict, on the one hand, and basic societal values, legal principles, and national security, on the other.