Book IX International Transactions, 35 Treaties and Other International Instruments—I General Definition, Memorandum of Understanding, Treaty, Convention, Agreement, Protocol, Declaration, Exchange of Notes, Treaty Formalities, Treaties in More Than one Language

35.1 The most frequently cited definition of a treaty is that contained in the Vienna Convention on the Law of Treaties.2 It defines the term ‘treaty’ as ‘an international agreement concluded between States in written form and governed by international law, whether embodied in a single instrument or in two or more related instruments and whatever its particular designation’.3 This definition is however expressly for the purposes of the Convention only. It consciously excludes, for example, international agreements concluded between States and international...