Sovereignty has been at the heart of political philosophy for centuries, and yet it is far from clear what work sovereignty is actually doing in the modern world. Is sovereignty indivisible? Why are some international interventions acceptable but others condemned or resented? Is sovereignty always popular? What role does sovereignty have in a world of international finance, global information exchange, and supranational regulation? Is sovereignty only relevant to some parts of the world or of global relevance? This volume will place the intellectual roots of sovereignty in a conversation with sociological theory and the realities of a globalised world to create a broader context for our contemporary debates.