The two years since publication of the first edition of The Law of EU External Relations: Cases, Materials, and Commentary on the EU as an International Actor have been characterized by the large amount of case law on the new provisions on external relations, which have found their way into the Lisbon Treaty. Moreover, there have been important changes in EU secondary law on external relations as a consequence of these changes to the Lisbon Treaty. In this second edition, new case law and legislative developments are critically discussed and analysed in this comprehensive collection of EU Treaty law. Combining chapters on the general basis of the Union's external action and its relation to international law, with chapters which further explore the law and practice of the EU in the specialized fields of external action, this book presents the law of EU external relations in a concise and accessible manner for students, practitioners, and academics in the field. Topics include the common commercial policy, development cooperation, cooperation with third countries, humanitarian aid, the enlargement and neighbourhood policies, the external environmental policy, and the common foreign and security policy. Carefully selected primary documents are accompanied with analytic commentary on the issues they raise and their significance for the overall structure of EU external relations law. The primary materials selected include many important legal documents that are hard to find elsewhere but give a vital insight into the operation of EU external relations law in practice.