Accordi internazionali degli Stati membri dell'Unione Europea e Stati terzi

[Machine translation] The growing importance of the European Union's external action, also determined by the constant expansion of the Union's competences in this area, has led to a considerable downsizing of the international relationship life of the Member States. In many areas of international law, the Union has gradually replaced its own States in managing relations with third countries. The work analyzes issues related to the interactions between the EU legal system and international agreements concluded by member states of the Union with third countries. The perspective is first and foremost that of international law, in particular of the rules of the Vienna Convention on the Succession of Treaties over Time and of the principle of good faith. The paper then examines the mechanisms within EU law that can allow harmonization between the EU legal system and the autonomy of member states at the international level.