This article considers the relationship between the United Nations and its member states in view of the Security Council's assertion of legislative powers. It claims that the exponential growth in UN powers at the expense of the powers of its member states cannot be arrested by legal means, because of the nature of the UN system and the absence of legally enforceable criteria and compulsory dispute-settlement mechanisms. For this reason, it proposes a different approach to law-making in the area of international peace and security – one that is built around the principle of subsidiarity, as reflected in Article 2(7) of the UN Charter. The role of the principle of subsidiarity in this respect is to determine which authority is best suited to exercise legislative power and how such power should be exercised in order to attain the objective of peace and security more efficiently. It is thus contended that the principle of subsidiarity promotes co-operative relations between the United Nations and its member states by protecting the latters' jurisdictional authority from unnecessary interference.
