This text offers an examination of the jurisprudential aspects of Kant's international thought, with reference to the argument of his treatise, ""Perpetual Peace"" (1795). In the book, Kant's international thought is situated in the wider context of his moral and political philosophy.;Particular attention is given to explaining how Kant saw law as providing the basis for peace among men and states in the international sphere, and how in his exposition of the elements of the law of peace, he broke with the secular natural law tradition of Grotius, Hobbes, Wolff and Vattel.