Some twenty-five years ago, John Ruggie defined “multilateralism” in terms that remain apposite today. As an international lawyer, this definition prompts me to reflect on the connections between the international legal order and multilateralism. To be sure, international law has unilateral, bilateral, and multilateral features, for example in lawmaking or law enforcement. Similarly, it can be wielded to unilateral, bilateral, or multilateral ends. Indeed, it is precisely because it transcends ends and issue areas, that international law, by providing “generalized” principles of conduct and interaction, is an important component of multilateralism.