What keeps Westphalia together? Normative differentiation in the modern system of states / War, violence, and the Westphalian state system as a moral community / (B)orders and (dis)orders : the role of moral authority in global politics / The möbius ribbon of internal and external security(ies) / Borders and identity in international political theory / Boundaries, borders, and barriers : changing geographic perspectives on territorial lines / The global political culture / Crossing the borders of order : democracy beyond the nation-state? / Demographic boundary maintenance in world politics : of international norms on dual nationality / Now and then, here and there : migration and the transformation of identities, borders, and orders / The political nature of identities, borders, and orders : discourse and strategy in the Zapatista rebellion