1 In order to provide a complete chronological list of agreements entered into by the United States during the years covered in this volume, the table of contents includes citations to several agreements which are not printed in this compilation because they entered into force for the United States after 1949 and are therefore contained in the series entitled United States Treaties and Other International Agreements (UST). For a more detailed explanation of the scope of these volumes, see the preface to volume 1 and the foreword in volume 5.