The completion of this work took place during my doctoral training (2000-2005), under the guidance of the prestigious professor of public international law Victor Duculescu. The work was published after the defense of the doctoral thesis, at the Veritas publishing house in Targu Mures. Since the extremely difficult course of the circulation of the works and the subsequent regulations required the publication of the doctoral theses in another publishing house in Romania, I took the decision to republish it at the University publishing house, from Bucharest. However, since it is a doctoral thesis, I no longer update some of the institutions, the concepts specific to the field by referring to the legal and factual events that occurred after 2004.
The cessation of the effects of international treaties was my main concern during the years of doctoral preparation, and the approach to this field finally led me to conclude that throughout my university career my main attention will be directed towards this field. The explanation is very simple: the termination of international treaties is a living field that constantly offers us situations of interest for the states involved, and the researcher will always have the feeling that he is at the beginning of the road. Moreover, this is a reality if we take into account that the rules of international law must adequately express the changes that intervene in the life of the international community.
The termination of international treaties is addressed in the work in a broad way, because I considered that it responds more adequately to the situations that arise in international relations. By the broad way, I meant to include in the work both the causes of termination provided by the Vienna Convention on the Law of Treaties, as well as the causes of termination outlined in customary international law and developed in specialized literature; also, the concept of termination covers, according to the approach of the work, both the causes of actual termination of international treaties, but also the causes of their nullity, for the simple reason that regardless of the place of such treaties in theory, the result of finding the termination or nullity is similar in international life: the treaty no longer produces legal consequences. Such an approach highlights with greater accuracy the differences between international law and domestic law, distinctions undeniable by international jurists.
The shortcomings of the work are mainly due to three causes: since the time of the preparation of the work, there have been important transformations in the legal, political and social life of Romania, such as: the adoption of law no. 590/2003 regarding treaties and the formation of a new Romanian practice under this law, different from the old law no. 4/1991; Romania's accession to the European Union; the settlement by the International Court of Justice of the dispute between Romania and Ukraine. As a consequence, the work addresses too little, or from the perspective of the years 2003-2004, the issues related to the termination of the treaties in relation to the mentioned realities. However, in the last 4 years, I have tried to collect the bibliographic material necessary for a new, more complete edition, which corresponds to the demands of the present. It follows that in the coming years, I will work on such an edition, which will include a complete picture of Romania's practice and the situations that are circumscribed by the termination of international treaties to which the Romanian state is a party.
The work is intended for specialists in public international law, theorists or practitioners, and less so for the general public. However, some interested historians may find of interest my legal opinions regarding the dispute between Romania and Ukraine, formulated prior to its resolution, as well as a synthesis of the effects generated by the 1989 revolution in Romania on its practice in the field of treaties with an interest in the cessation or maintaining the force of some international treaties, as well as the situation of some international treaties as a result of the disintegration of some federal states in the vicinity of Romania, after the years 1989‑1990.
In this way, I would like to thank those who have supported me throughout my university career, teachers, students and friends.
Targu Mures, March 1, 2023