Synopsis The Study of International relations has in some way always been a part of human civilization. Even in the earliest organised human societies, under standing the dynamics of the interactions between nations was considered an essential part of understanding of international relations is essential for not just heads of state but also many, if not most, involved in business and professional activities in this age of increasing globalisation. The field of international relations brings together elements of history, geography, philosophy, economics, and other social sciences. It also involves a diverse range of issues, from involves a diverse range of issues, from globalisation and its impacts on societies and state sovereignty to ecological sustainability, nuclear proliferation, nationsalism, economic development, terrorism and human rights. This book aims to provide an understanding of the various theoretical approaches to the international relations and to show their utility and importance as a way to help utility and importance as a way to help us explain and understand international behaviour, foreign policy, and world politics in general. The material presented in this book would be of interest as well as great use to students and research scholars of the subject.