This book has two mutually reinforcing aims/parts. The first aim is to contribute to a more productive debate between different theoretical standpoints. There is surprisingly little theoretical and conceptual debate in this burgeoning field, which is one major reason for the failure to fully grasp the diversity of today’s interregionalism. Too often theorists speak past each other, without really engaging with alternative theoretical perspectives or competing research results. Indeed, this book constitutes the first systematic attempt to bring together leading theories and theorists of interregionalism. Leading scholars from around the world develop their own distinctive theoretical perspectives on interregionalism, with a particular emphasis on the dynamic relationship between regionalism and interregionalism. These highly acclaimed theorists have all been associated over the years with a variety of disciplines, institutions, schools and debates and so bring a rich set of insights and connections to this pioneering project. The second part of the book ‘unpacks’ and problematises the region, the driving actors and institutions that are engaged in interregional relations. There is a strong tendency in the field to treat regions as coherent units actors in an interregional relationship, and such simplified notions about ‘regions’ and ‘regional organisations’ necessarily result in superficial and misleading understandings of interregionalism. This part of the book connects the theoretical discussion in the first part with a manageable empirical object.

This book has two mutually reinforcing aims/parts. The first aim is to contribute to a more productive debate between different theoretical standpoints. There is surprisingly little theoretical and conceptual debate in this burgeoning field, which is one major reason for the failure to fully grasp the diversity of today's interregionalism. Too often theorists speak past each other, without really engaging with alternative theoretical perspectives or competing research results. Indeed, this book constitutes the first systematic attempt to bring together leading theories and theorists of interregionalism. Leading scholars from around the world develop their own distinctive theoretical perspectives on interregionalism, with a particular emphasis on the dynamic relationship between regionalism and interregionalism. These highly acclaimed theorists have all been associated over the years with a variety of disciplines, institutions, schools and debates and so bring a rich set of insights and connections to this pioneering project. The second part of the book 'unpacks' and problematises the region, the driving actors and institutions that are engaged in interregional relations. There is a strong tendency in the field to treat regions as coherent units actors in an interregional relationship, and such simplified notions about 'regions' and 'regional organisations' necessarily result in superficial and misleading understandings of interregionalism. This part of the book connects the theoretical discussion in the first part with a manageable empirical object.

This unique book investigates the implications of the rising importance of supra-national regional organizations for global governance in general, and for the United Nations, in particular. It touches upon issues such as regional representation at the UN, high-level dialogues with regional organisations, as well as the coordination of UN member states' voting behaviour in the UN General Assembly and the UN Security Council. The book further explores the regional dimension and coordination of UN operations in areas such as peace and security, human rights, and sustainable development. The contributions to the book are both in-depth chapters and shorter viewpoints, written by a combination of academics, policy-makers at regional organizations, and experts from international think tanks. The book is essential reading for anyone interested in the future of global governance.