From women's rights, civil rights, sexual rights for gays and lesbians, disability rights, and language rights, we have experienced in the past few decades a major trend in Western nation-states towards new claims for inclusion. This trend has echoed around the world: from the Zapatistas to Chechen and Kurdish nationalists, social and political movements are framing their struggles in the languages of rights and recognition, and hence, of citizenship. Citizenship has thus become an increasingly important axis in the social sciences. Social scientists have been rethinking the role of political agent or subject. Not only are the rights and obligations of citizens being redefined, but also what it means to be a citizen has become an issue of central concern. As the process of globalization produces multiple diasporas, we can expect increasingly complex relationships between homeland and host societies that will make the traditional idea of national citizenship problematic. As societies are forced to manage cultural difference and associated tensions and conflict, there will be changes in the processes by which states allocate citizenship and a differentiation of the category of citizen. This book constitutes the most authoritative and comprehensive guide to the terrain. Drawing on a wealth of interdisciplinary knowledge, and including some of the leading commentators of the day, it is an essential guide to understanding modern citizenship.