The 1969 and 1986 Vienna Conventions on the Law of Treaties are essential components of the international legal order. This is the first Commentary on their provisions, containing thorough and well-structured analyses of each of their Articles. It draws on preparatory works and practice and is written by a large collection of experts from the field

The Commentary on the Vienna Convention on the Law of Treaties provides an in-depth article-by-article analysis of all of the Vienna Convention’s provisions. Each provision’s analysis consists of (I) Purpose and Function of the Article, (II) Historical Background with Negotiating History, (III) Elements of the Article and finally (IV) Treaties of International Organizations. In short, the present Commentary contains a comprehensive legal analysis of all aspects of the international law of treaties. Furthermore, where the law of treaties reaches into other fields of international law, e.g. the law of state responsibility, the relevant interfaces are discussed and contextualized. With its focus on international practice, the Commentary is an invaluable reference for both academia and practitioners of international law.

Examines the key features of the Vienna Convention (reservations and modifications, application, interpretation, suspension and settlement of dispute), as well as discussing its scope and significance.

The 1969 Vienna Convention on the Law of Treaties, regulating treaties between States, lies at the heart of international law. This commentary interprets the Conventiona (TM)s 85 articles clearly and precisely. It covers such major topics as reservations to treaties, their interpretation and the grounds for terminating a treaty, for instance breach. Emphasis is placed on the practice of States and tribunals and on academic writings. It contains further sections on customary international law and the Conventiona (TM)s history while providing up-to-date information on ratifications and reservations. This commentary is a must for practitioners and academics wishing to establish the meaning and scope of the provisions of the Vienna Convention on the Law of Treaties.

Interpretation has always been a cornerstone of international adjudication. This book offers a comprehensive analysis, both on a theoretical and a practical level, of where the principles of interpretation enshrined in Articles 31-33 of the VCLT currently stand.

This book offers a comprehensive analysis of the law of treaties based on the interplay between the 1969 Vienna Convention on the Law of Treaties and customary international law. Written by a team of renowned international lawyers, it offers new insight into the basic concepts and methodology of the law of treaties and its problems.

Treaties form a basis for the daily conduct of international relations, and thus it is vital to see how they are made, amended, interpreted, and enforced. This volume presents insights into how the law of treaties has worked over the past 40 years, since the 1969 Vienna Convention was adopted as the comprehensive treaty to regulate the law of international agreements. The book capitalizes on 40 years of international experience, with a group of expert contributors describing and analyzing the subject. Multiple issues of the Convention are covered, including the aspects of conclusion, interpretation, reservation, amendment and modification, validity, and other issues.

A comprehensive treatment of the law of treaties written from the point of view of a practitioner of 35 years experience: the first book of its kind. Aust provides a wealth of examples of the real problems experienced in making and using treaties day by day, not just when a treaty is the subject of a court case. As such it is invaluable to the practitioner. Aust aims to supply the reader with a full and rounded understanding of all aspects of treaties. He avoids technical language as far as possible, making his work accessible to non-lawyers. Although not primarily an academic work, there is plenty to interest and inform law students and teachers (it has established itself as a course book), as well as those specialising in political science, international relations or diplomacy.