Analyzing the Interaction of Law of Treaties with Law of International Responsibility to Justify Non-performance

International law of treaties and international law of responsibility are the two most important domains of international law as vast majority of international law subjects deal with the performance and breach of international obligations which should be analyzed based on the provisions derived from these two domains. In this regard, close consideration of those subjects which are, to some extent provided commonly by both of them, will lead to explain them better. The circumstances precluding wrongfulness in chapter 5 of the draft articles of International Law Commission on states responsibility together with the justifications not to perform treaty obligations which are provided in Vienna Convention of the Law of Treaties are the issues which are examined in this regard.