Part 3 Interpretation and Change, 10 Subsequent Agreements and Practice: Between Interpretation, Informal Modification, and Formal Amendment

Dealing with the topic of subsequent treaty agreements and practice is like chewing something that grows bigger and bigger until, ultimately, it can no longer be swallowed. At first glance, problems raised by subsequent treaty agreements and practice may not be evident. One could even say that the Vienna Convention on the Law of Treaties of 1969 adequately governs various aspects of this matter: in arts 312 and 40,3 even art 414 and possibly art 59.5 However, a closer look reveals that the topic raises more questions and problems than can be solved or answered by...