This book deals with two interconnected yet often forgotten realities of the constitutional order in Africa: first, the 'foreign affairs power' that gives the specific organs of the State the capacity to create and empower universal, regional and sub-regional governance and judicial structures. Secondly, the 'international judicial function in Africa', with a specific focus on the African Court on Human and Peoples' Rights and the upcoming merger with the African Court of Justice to form one court: The African Court of Justice and Human and Peoples' Rights.