PUBLIC LAW II:
Public International
Law
Prof. Dr. Gleider Hernández
Professor of Public International Law
Institute for International
Law Faculty of Law, KU
Leuven
2020-2021
,Structure of Today’s Lecture
o The Creation of Treaties
o Entry in Force of Treaties
o The Nature of Treaty Obligations
o Treaty Interpretation
o Reservations
o Invalid Treaties
o Termination of Treaties
2
, What is a
treaty?
o Art. 2(1) of the Vienna Convention on the Law of
Treaties: “an international agreement concluded
between States in written form and governed by
international law, whether embodied in a single
instrument or in two or more related
instruments and whatever its particular
designation.”
o Treaty as written agreement between two or
more legal persons under international law
3
Public International
Law
Prof. Dr. Gleider Hernández
Professor of Public International Law
Institute for International
Law Faculty of Law, KU
Leuven
2020-2021
,Structure of Today’s Lecture
o The Creation of Treaties
o Entry in Force of Treaties
o The Nature of Treaty Obligations
o Treaty Interpretation
o Reservations
o Invalid Treaties
o Termination of Treaties
2
, What is a
treaty?
o Art. 2(1) of the Vienna Convention on the Law of
Treaties: “an international agreement concluded
between States in written form and governed by
international law, whether embodied in a single
instrument or in two or more related
instruments and whatever its particular
designation.”
o Treaty as written agreement between two or
more legal persons under international law
3
