The emergence of cyberspace—a global environment defined by interdependent, interconnected information systems that store and transmit data—is having transformative effects on nearly every dimension of international politics. In Cyber Sovereignty, Lucie Kadlecová tackles the implications of cyberspace for the concept of state sovereignty. This is among the most important challenges cyberspace is posing to the international system, given the inherent mismatches between the global, interconnected nature of the cyber environment and efforts by states to extend and impose their territorial sovereignty to it. Indeed, grappling with how cyberspace affects (and is affected by) questions of sovereignty is a necessary subject that informs a range of core international relations issues.

Kadlecová addresses these complex questions from the perspective of both theory and empirics, building on Stephen Krasner's seminal work, Sovereignty: Organized Hypocrisy (Princeton University Press; 1999), which disaggregates sovereignty into various forms (Westphalian, international legal, domestic, and interdependence). Kadlecová explores how Krasner's typology of sovereignty applies in cyberspace, leveraging four case studies—Estonia, the Netherlands, Turkey, and the United States—that she posits are exemplars of e