John McGarry and a distinguished group of comparativists have produced a volume important not only for scholars interested in the study of Northern Ireland but also for those concerned with ethnic conflict and nationalism generally. Although its success is certainly not assured, the Good Friday Agreement of 1998, a consociational (power-sharing) settlement of the Northern Ireland conflict with international confederal dimensions, has sparked much interest by scholars and practitioners concerned with other ethnonational conflicts. The agreement was achieved with considerable pressure and support from international actors. The international community has played an increasingly important part in the resolution, management, and containment of ethnonational conflict, and the success or failure of the Good Friday Agreement may hold important lessons for international efforts elsewhere. From both a theoretical and practical perspective, this is a fine edited volume with internal coherence and useful contributions.