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AbstractThe After Fragmentation special issue unites political science conversations about regime complexity with legal/normative conversations about global constitutionalism through a focus on the generation and resolution of interface conflicts, defined as moments when overlapping elements or rule incompatibilities generate actual conflicts. Yet scholars choosing among these two perspectives actually have different objectives. After reviewing the two literatures, I argue that this special issue is closer to the global constitutionalism perspective, which generally seeks legitimated order. By contrast, the regime complexity literature asks how does the fact that global governance is spread across multiple institutions in itself shape cooperation politics. Investigating what it means to get 'beyond fragmentation', I suggest that the potential or actuality of rule conflicts is not necessarily a problem because conflicts are a normal and even salutary aspect of politics. If conflict is not the concern, then what should we be worrying about? Both perspectives, I argue, are amoral because they normalise and help justify an international order where responsibility is spread across institutions, promoting order while failing to address fundamental problems affecting people and the world. In this respect, resolving rule conflicts does not get us beyond fragmentation.

Taking the opportunity of this LJIL special lecture, Professor Alter provides an interdisciplinary retrospective that explains, defends and critiques six common visions of international law: The naive political scientist's expectations about international law as a fixed reflection of political choices; the legal formalist and structural theorist who believes that formal rules, institutions, and processes should generate similar outcomes in different parts of the world; the Western centric scholar's notion that one can draw general lessons based on European and American experiences; the liberal internationalist who believes that multilateral processes generate consent based agreements and outcomes; the law and society scholar whose focus on the local can minimize international structural elements; and the international legal sociologist who believes that meanings and practices constitute international law. After reflecting on what each vision captures and misses about international law, Professor Alter identifies the policy stakes of residing within a vision. While we need to draw from multiple visions to understand the hybridity of international law, we also need to understand the implicit presumptions of each vision, as these presumptions generate contradictory prescriptive recommendations.

Any speculation about the promise and future of multilateralism in Latin America turns fundamentally on what we mean by multilateralism. If multilateralism is defined in numeric terms, as any formal cooperative endeavor undertaken by three or more states, then it is easy to predict that multilateralism is going to be an ongoing feature international politics everywhere. If the question concerns the future of particular Latin American multilateral institutions, such as the Inter-American Human Rights system, Mercosur, or the Andean Community, there might be greater worry and room for disagreement. We would then want to know "what part of the inter-American Human Rights system/Mercosur/Andean Community are you talking about?"

This review essay examines three intellectual histories focused on fundamental transformations of international law in the early twentieth century. Juan Pablo Scarfi's Hidden History of International Law in the Americas is most interested in debates about a Pan-American international law, meaning the idea that international law might work differently in different regions, which was debated but eventually gave way to the change that Arnulf Becker Lorca, a Lecturer in Public International Law at Georgetown Law, discusses. Becker Lorca's Mestizo International Law is most interested in how the conception that international law applied only to civilized nations transformed into the modern conception that presumes sovereign equality. The Internationalists, by Oona Hathaway and Scott Shapiro, respectively the Gerard C. and Bernice Latrobe Smith Professor of International Law and the Charles F. Southmayd Professor of Law and Professor of Philosophy at Yale Law School, and seeks to understand how the normal (and legal) recourse to force in international relations was replaced by an international law that bans the use of force, except in self-defense. Ideas regarding these issues started to evolve in the late 1800s, but the transformative debates occurred at roughly the same time because the Hague Peace Conferences and the League of Nations allowed contestations over old versus updated understandings of international law to flourish.