Spaces of Law in American Foreign Relations is the first book to address the legal aspects of late nineteenth-century U.S. foreign relations. It fills a clear historiographical void and, in so doing, not only significantly enhances our understanding of U.S. foreign relations for the years 1877–1898 but also provides insight into the legal bases for governing the empire acquired after 1898. Based on prodigious and highly impressive research, it will be of interest to historians of U.S. foreign relations, of American legal history, and of the Gilded Age.