Part I. Constitutional and Institutional Questions: 1. Direct effect and interpretation of international agreements in the recent case law of the European Court of Justice Francis Jacobs; 2. Defining competence in EU external relations: lessons from the Constitutional Treaty Marise Cremona; 3. Article 47 TEU and the relationship between first and second pillar competences Alan Dashwood; 4. EC Law and UN Security Council resolutions - in search of the right fit Piet Eeckhout; 5. Fundamental rights and the interface between second and third pillar Eleanor Spaventa; 6. The EU as a party to international agreements: shared competences? Mixed responsibilities? Ramses Wessel; 7. Will the common commercial policy be impeded by non-ratification of the Constitutional Treaty? Peter-Christian Müller-Graff; 8. The extent to which the EC legislature takes account of WTO obligations: jousting lessons from the European Parliament Jacques Bourgeois and Orla Lynskey; Part II. Bilateral and Regional Approaches: 9. The relations between the EU and Switzerland Christine Kaddous; 10. The relations between the EU and Andorra, San Marino and Monaco Marc Maresceau; 11. The EU's Neighbourhood Policy towards Eastern Europe Christophe Hillion; 12. The four common spaces: new impetus to the EU-Russia strategic partnership? Peter Van Elsuwege; 13. The EU's Strategic Partnership with the Mediterranean and the Middle East: a new geopolitical dimension of the EU's proximity strategies Erwan Lannon; 14. The EU's transatlantic relationship Günter Burghardt; Part III. Selected Substantive Areas: 15. With eyes wide shut: the EC strategy to enforce intellectual property rights abroad Inge Govaere; 16. EU environmental law and its green footprints in the world Kirstyn Inglis.