International Relations Theory, International Law, and the Regime Governing Atrocities in Internal Conflicts

Abstract

Over the last ten years, international relations (IR) theory, a branch of political science, has animated some of the most exciting scholarship in international law.1 If a true joint discipline has not yet emerged,2 scholars in both fields have clearly established the value of interdisciplinary cross-fertilization. Yet IR—like international law—comprises several distinct theoretical approaches or “methods.” While this complexity makes interactions between the disciplines especially rich, it also makes them difficult to explore concisely. This essay thus constitutes something of a minisymposium in itself: it summarizes the four principal schools of IR theory—conventionally identified as “realist,” “institutionalist,” “liberal” and “constructivist”—and then applies them to the norms and institutions governing serious violations of human dignity during internal conflicts (the “atrocities regime”).