The Common Commercial Policy (CCP) of the European Union (EU) and formerly of the European (Economic) Community has been one of the most dynamic political fields ever since the beginning of the process of European integration. The EU, like its predecessors, the European Economic Community (EEC) and the European Community (EC), has achieved a leading role among the economic superpowers and is regarded in most aspects of economic law as a uniform economic area where the EU speaks also on behalf of its Member States. This volume aims to analyse the implications of the Treaty of Lisbon for the Common Commercial Policy of the EU. The entry into force of the Treaty of Lisbon1 on December 1, 2009 amended the existing treaties of the EU and significantly changed the EU competences in the fields of trade, investment and other external commercial relations. The EU now possesses exclusive powers for the conduct of trade relations with third countries covering practically all aspects of trade in goods, services, commercial aspects of intellectual property rights, as well as new competences for setting up an individual European International Investment Policy intended to form part of the Common Commercial Policy.2 In regard to institutional modifications, the Lisbon Treaty has significantly strengthened the role of the European Parliament and has substantially reformed the role of the ‘High Representative of the Union for Foreign Affairs and Security Policy’ (HR).3 He or she is now supported by the European External Action Service (EEAS). This volume examines these developments and their possible impact on the external economic constitution of the EU.