Many interesting articles have already been published on the preparatory work for the United Nations Conference on the Law of Treaties, on the Conference itself, and, of course, on the Convention signed at Vienna on May 23, 1969. The American Journal of International Law has printed a number of them, among the most important being the excellent study by Ambassador Richard D. Kearney and Mr. Robert E. Dalton. The authors rightly referred to the Vienna Convention as the “Treaty on Treaties,” its object being to codify all, or nearly all, legal problems that may arise in connection with treaties, and the very definition of a “treaty,” as introduced by the convention, being much broader in scope than the traditional meaning of this term.