This book explores the change and continuity in the idea of the nation state. Since the Westphalian treaties and the political thought of Thomas Hobbes, the nation state has been the denominator of all geopolitics. In an era of populism, economic globalization, digitalization, and the Chinese party-state, scholars of sovereignty have been struggling to understand whether the nation-state remains relevant as a necessary heuristic. This book will be of interest to scholars, policymakers, investors, and citizens navigating a fast-changing world.