Abstract

ABELLO-GALVIS, Ricardo. INTRODUCTION TO THE STUDY OF THE IUS COGENS RULES WITHIN THE INTERNATIONAL LAW COMMISSION, ILC. Vniversitas [online]. 2011, n.123, pp.75-104. ISSN 0041-9060.

This article analyses the origin of ius cogens rules through its evolutionary process in the International Law Commission. In particular, the article includes the work of special rapporteurs dealing with the law of treaties project, in which the concept of imperative rules and ius cogens was studied. Some differences between these rules and humanitarian law have also been included. According to Article 53 of the Vienna Convention on the Law of Treaties, a peremptory norm "is a norm accepted and recognized by the international community of States as a whole as a norm from which no derogation is permitted and which can be modified only by a subsequent norm of general international law having the same character".

Keywords : Ius cogens; peremptory norms; International Law Commission - ILC; International Court of Justice; treaties; Vienna Convention on the Law of Treaties; illegal object; void; general international law; international community of States.

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