The issue of self-defence in light of the international law prohibition to use military force

Abstract

The subject of this paper touches upon the prohibition to use force, and military force in particular, by States in self-defence. This is a classical example of an important and still very topical issue in international law practice. The right of each State to self-defence is perceived as one of the fundamental rights provided for in customary as well as positive international law. And yet, the exercise of this right has always raised many controversies and questions resulting, on the one hand, from the fact that the concept of self-defence has evolved over years, and, on the other hand, because of the recent tendencies to legalise different military actions carried out outside the framework of the United Nations Charter. These tendencies, presented in the paper in the context of military actions taken by states in situations of a potential terrorist attack, are described as either a pre-emptive, or a preventive use of military force. The author then concludes that although in the event of a pre-emptive military action taken by a State in reliance of its right to self-defence it may be justified to rely on the legal construction of self-defence, in the context of a preventive military operation, such reliance would be much more risky, if not inadmissible. A preventive use of military force fails to meet the criteria of legality of self-defence set forth in the UN Charter, as well as those resulting from international customary law.