A video tutorial from author Gleider Hernández introducing the topics in chapter 7 of International Law

Key points for reflection:

  • Article 2(1) of the Vienna Convention on the Law of Treaties (VCLT): treaties as written agreements between States (also between States and IOs, or between IOs), and governed by international law
  • Vienna Convention as customary law; relationship between custom and treaties in this context
  • Modalities relating to treaties
    • Creation of treaties
    • Entry into force of treaty obligations
    • Principles governing the interpretation of treaties
    • Reservations to treaties and their effects
    • On the possible invalidity of treaties
    • Modification, suspension and termination of treaties