United Nations and Regional Organizations: Complementarity v. Subsidiarity

Abstract

The United Nations organization was planned to be established as a single universal system of collective security. Major efforts were supposed to be taken by the UN Security Council. Regional organizations were introduced into the system as a subordinate subsidiary means – elements of the system. Over the course of the time it has, however, appeared that the UN Security Council was not able to act in the way prescribed by the UN Charter in suppressing newly emerged threats and challenges in the sphere of security. In the contrary, the role of regional organizations has increased substantially. They do the majority of tasks in the sphere of maintenance of international peace and security, often without authorization or even informing the UN Security Council, although the legality of some of these actions may be dubious. As a result, the Council itself transfers the accent in relations between the UN and regional organizations from subsidiarity to complementarity or even partnership. It is thus necessary to re-check the meaning of the concepts of complementarity and subsidiarity as well as the UN Charter provisions in the changed circumstances and to specify principles of the new system.