This article presents the current issues in the law of international organizations and contemporary international law in general. It is pointed out that the division of international law into branches and institutions, in order to ensure the effective legal regulation of new spheres of relations, led to the emergence of autonomous legal regimes, even within one region, namely on the European continent. To date, these include European Union law and Council of Europe law. It is emphasized the features of the established legal relations between the Council of Europe and the European Union at the present stage. It is determined that, along with close cooperation between regional organizations, there is a phenomenon of fragmentation, which is accompanied by the creation of two legal regimes within the same regional subsystem, proliferation of the international legal norms, institutions, spheres and conflicts of jurisdiction between the European Court of Human Rights and the Court of Justice of the European Union. It is revealed that some aspects of fragmentation can be observed from the moment of establishing relations between the Council of Europe and the European Union, up to the modern dynamics of the functioning of the system of law of international organizations, the law of international treaties, law of human rights. Areas and types of fragmentation in relations between international intergovernmental organizations of the European continent are distinguished. One way to overcome the consequences of fragmentation in the field of human rights is highlighted, namely through the accession of the European Union to the Convention on Human Rights and Fundamental Freedoms 1950. Considerable attention has also been paid to defragmentation, which is partly reflected in the participation of the European Union in the Council of Europe’s conventions by the applying «disconnection clause». It is determined that the legal relations established between an international intergovernmental organization of the traditional type and the integration association sui generis, the CoE and the EU, but with the presence of phenomenon of fragmentation in a close strategic partnership, do not diminish their joint contribution into the development of the law of international organizations and contemporary international law in general. Key words: defragmentation; European Union; European Court of Human Rights; Convention on Human Rights and Fundamental Freedoms 1950; conflict of jurisdictions; «disconnection clause»; Council of Europe; Court of Justice of the European Union; fragmentation; sui generis.
Brexit and Acquired Rights