Kseniia Smyrnova, Vice-Rector of Taras Shevchenko National University of Kyiv (International Affairs), Ukraine, Professor, Doctor of Jur. Sciences (Dr.hab), Professor, Member of Jean Monnet Center of Excellence.Bohdan Veselovskyi, PhD Student, Institute of International Relations, Taras Shevchenko National University of Kyiv, Ukraine and Chief Legal Consultant, Secretariat of the Parliament of Ukraine. For correspondence: <mailto:ksenya.smyrnova@gmail.com> and <mailto:bogdan15081995@gmail.com>.