A compelling treatise on the relationship between power and enclosure Fortress Power presents a genealogy of fortification as a material and political technology intent on obstruction, tracing its implementation across battlefields, borders, and urban environments. Drawing on the influential work of philosophers Michel Foucault and Giorgio Agamben, Derek S. Denman places the fortress alongside the archetypes of the prison and the camp, citing them as paradigmatic of how space is transformed into a tool of domination and control. Focusing on the defensive architecture of bastion fortresses, urban design, and border landscapes, Fortress Power charts the rise of a form of governance grounded in hostility, extending the scope of its subject from a piece of military construction to a much broader political concept. Detailing how power manifests in everything from city centers to international boundaries, the book analyzes the logic of fortification as it moves through various contexts in the advancement of surveillance, exploitation, warfare, and political authority. Through a unique blend of architecture and design studies, political theory, international relations, geography, and migration studies, Denman outlines the disquieting legacy of the fortress to highlight its role in the formation of modern government and the enactment of violence. In an era marked by the increasing prevalence of authoritarian power and conflicting geopolitical boundaries, he presents an insightful investigation of the weaponization of the built environment.