This text examines the relationship of regionalism to universalism, the interconnection between Intergovernmental Organisations (IGOs) and International Nongovernmental Organisations (INGOs), and the continuities between national and multinational foreign policy making in the post-Cold War world. While the committment in this study is to comparative analysis, the historical, legal, structural-functional, and decision making approaches are also employed. The book underscores the pluralism of the world community, its decentralised nature, and its resistance to system and order. This revision was occasioned by the tremendous changes that have occurred in the field of international organisations in the last eight years. Scholars, teachers, and especially students, will benefit from the comparative approach utilised here.