From the historic launch of the organization by such luminaries as Elihu Root and Charles Evans Hughes, to the recent era when international law is more and more in the public realm, Kirgis’s book traces the evolution of the organization and its relationship to events in the United States and around the world. As he says in the preface: '...In the end, the reader will have to make his/her own judgment about how well the Society has run the course it set out for itself in 1906. I hope this book will provide a basis for that judgment. And of course no judgment at this stage can be final. The American Society of International Law will carry on into its second century with new and continuing programs that take into account what it has done in its first one hundred years. It will continue to do its best to demonstrate not only what international law is or should be, but also that, in the words of former ASIL President Louis Henkin, international law matters.'

America's empire expanded dramatically following the Spanish-American War of 1898. The United States quickly annexed the Philippines and Puerto Rico, seized control over Cuba and the Panama Canal Zone, and extended political and financial power throughout Latin America. This age of empire, Benjamin Allen Coates argues, was also an age of international law. Justifying America's empire with the language of law and civilization, international lawyers-serving simultaneously as academics, leaders of the legal profession, corporate attorneys, and high-ranking government officials-became central to the conceptualization, conduct, and rationalization of US foreign policy. Just as international law shaped empire, so too did empire shape international law. Legalist Empire shows how the American Society of International Law was animated by the same notions of "civilization" that justified the expansion of empire overseas. Using the private papers and published writings of such figures as Elihu Root, John Bassett Moore, and James Brown Scott, Coates shows how the newly-created international law profession merged European influences with trends in American jurisprudence, while appealing to elite notions of order, reform, and American identity. By projecting an image of the United States as a unique force for law and civilization, legalists reconciled American exceptionalism, empire, and an international rule of law. Under their influence the nation became the world's leading advocate for the creation of an international court. Although the legalist vision of world peace through voluntary adjudication foundered in the interwar period, international lawyers-through their ideas and their presence in halls of power-continue to infuse vital debates about America's global role

In the interwar years, international lawyer James Brown Scott wrote a series of works on the history of his discipline. He made the case that the foundation of modern international law rested not, as most assumed, with the seventeenth-century Dutch thinker Hugo Grotius, but with sixteenth-century Spanish theologian Francisco de Vitoria. Far from being an antiquarian assertion, the Spanish origin narrative placed the inception of international law in the context of the discovery of America, rather than in the European wars of religion. The recognition of equal rights to the American natives by Vitoria was the pedigree on which Scott built a progressive international law, responsive to the rise of the United States as the leading global power and developments in international organization such as the creation of the League of Nations. This book describes the Spanish origin project in context, relying on Scott's biography, changes in the self-understanding of the international legal profession, as well as on larger social and political trends in US and global history. Keeping in mind Vitoria's persisting role as a key figure in the canon of international legal history, the book sheds light on the contingency of shared assumptions about the discipline and their unspoken implications. The legacy of the international law Scott developed for the American century is still with the profession today, in the shape of the normalization and de-politicization of rights language and of key concepts like equality and rule of law.

This book presents a comprehensive account of the Supreme Court's use of international law from the Court's inception to the present day. Addressing treaties, the direct application of customary international law and the use of international law as an interpretive tool, the book examines all the cases or lines of cases in which international law has played a material role.

This volume examines the role of League of Nations committees, particularly the Advisory Committee of Jurists (ACJ) in shaping the statute of the Permanent Court of International Justice (PCIJ). The authors explore the contributions of individual jurists and unofficial members in shaping the League’s international legal machinery. It is a companion book to The League of Nations and the Development of International Law: A New Intellectual History of the Advisory Committee of Jurists (Routledge, 2021). One of the guiding principles of the book is that the development of international law was a project of politics where the idea and notion of an international society must contend with the political visions of each state represented on the different legal committees in the League of Nations during the drafting of the Covenant. The book constitutes a major contribution to the literature in that it shows the inner workings of some of the legal committees of the League and how the political role of unofficial members was influential for the development of international law in the early twentieth century and how they influenced the political and legal process of the ACJ. The book will be an essential reference for those working in the areas of International Law, Legal History, International Relations, Political History, and European History.