This analysis of Hans Kelsen's international law theory takes into account the context of the German international legal discourse in the first half of the twentieth century, including the reactions of Carl Schmitt and other Weimar opponents of Kelsen. The relationship between his Pure Theory of Law and his international law writings is examined, enabling the reader to understand how Kelsen tried to square his own liberal cosmopolitan project with his methodological convictions as laid out in his Pure Theory of Law. Finally, Jochen von Bernstorff discusses the limits and continuing relevance of Kelsenian formalism for international law under the term of 'reflexive formalism', and offers a reflection on Kelsen's theory of international law against the background of current debates over constitutionalisation, institutionalisation and fragmentation of international law. The book also includes biographical sketches of Hans Kelsen and his main students Alfred Verdross and Joseph L. Kunz.

A growing interest in the oeuvre of Hans J. Morgenthau and in re-readings of 'classical realism' increases the significance of his European, pre-emigration writings in order to understand the work of one of the founding figures of IR. This book is the first English translation of Morgenthau's French monograph La notion du politique from 1933 (translated by Maeva Vidal).

The Academy is a prestigious international institution for the study and teaching of Public and Private International Law and related subjects. The work of the Hague Academy receives the support and recognition of the UN. Its purpose is to encourage a thorough and impartial examination of the problems arising from international relations in the field of law. The courses deal with the theoretical and practical aspects of the subject, including legislation and case law. All courses at the Academy are, in principle, published in the language in which they were delivered in the "Collected Courses of the Hague Academy of International Law .

Peace is an elusive concept, especially within the field of international law, varying according to historical era and between contextual applications within different cultures, institutions, societies, and academic traditions. This Research Handbook responds to the gap created by the neglect of peace in international law scholarship. Explaining the normative evolution of peace from the principles of peaceful co-existence to the UN declaration on the right to peace, this Research Handbook calls for the fortification of international institutions to facilitate the pursuit of sustainable peace as a public good.