This book presents a new theoretical framework through which to understand the role of regional powers in creating and maintaining regional security orders. As a result of the retreat of the global powers since the end of the Cold War, it has become clear that international security dynamics are less explicable without considering the regional level as a primary focus for most states. The authors contend that these dynamics, which include the identification, management and prevention of security threats, are heavily influenced by regional powers. The regional level in this text is defined on the basis of regional sub-systems, more specifically Regional Security Complexes. Within this context, the authors utilize their framework to address how security orders are defined and how regional powers are identified. The focus then turns to an analysis of how the roles and foreign policy orientations of regional powers, conditioned by the presence of material capabilities, affect the development of regional security orders. The authors then present a comparative analysis of Russia, Brazil and India within their own security complexes to demonstrate an application of the framework. This book will be of interest to students of regional security, international security, foreign policy and International Relations in general.