This book presents the case that liberal constitutionalism in the global South is a legacy of colonialism and is inappropriate as a means of securing effective peace in regions that have been subject to recurrent conflict. The work demonstrates the failure of liberal constitutionalism in guaranteeing peace in the postcolonial global South. It develops an alternative, more compelling constitutionalism for peacebuilding in conflicted regions. This is based on constitutionalism that recognises plurality as a major feature in the global South. Drawing on events in Nigeria, it develops a constitutional model, based on Cognitive Justice, which could deliver peace by addressing historic, conceptual, legal, institutional and structural issues that have created social inequality and injustice. The study also incorporates insights from the development of plurinational constitutions in South America. The book will be an invaluable resource for researchers, academics and policy-makers with an interest in constitutional legal theory, peacebuilding and postcolonial studies