🌐 The United Nations Organization and its Specialized Agencies: The Architecture of Global Governance I. Introduction: The Legal Foundation of the Post-War Order The United Nations Organization (UNO) , formally established in 1945 following the devastations of World War II, stands as the most significant institutional structure in Public International Law (PIL). The UNO is a subject of PIL in its own right, possessing international legal personality. Its mandate extends beyond simple diplomacy to maintaining global peace, fostering economic and social cooperation, and developing international law. A. The Constitutional Basis The UNO is founded upon the Charter of the United Nations , a multilateral treaty signed in San Francisco. 5 The Charter is the foundational constitutional instrument of the international community, outlining: The Purposes and Principles of the Organization (Articles 1 and 2). The legal powers and functions of its six principal organs. The ...