EN
The actions indicated above and taken by the United Nations and the European Union (in spite of their different international law status) argue that objectives attributed to international organisations are not only postulates, but a basis for actions taken specifically, both in the legal and actual dimension. Therefore, the main research objective adopted for this study was to bring them closer, with particular emphasis on the UN and the EU joint actions for international security. Due to the complexity and multifaceted nature of the discussed subject matter of these considerations, they will be confined to the T-306/01 Ahmed Ali Yusuf and Al Barakaat International Foundation case recognized by the EU Court of First Instance. In there, as in a lens, interrelationships between the international organisations in questions are concentrated; and not only in terms of international cooperation, but, more importantly, in terms of the principle of the primacy of the United Nations law over other legal regimes.