This text is a revised edition and contains new material documenting the extensive and rapid innovations in the UN Security Council's procedures of the past two decades. It provides insight into the inside workings of the world's pre-eminent body for the maintenance of international peace and security. Grounded in the history and politics of the Council, it describes the ways the Council has responded through its working methods to a changing world. It explains the Council's role in its wider UN Charter context and examines its relations with other UN organs and its own subsidiary bodies.

The aim of this study is not to explore all of the problems that arise today in security threats and conflict management, but to seek to understand the role of a particular institution--the Security Council--and the changes now affecting its modes of intervention and its interaction with international actors--great powers, regional organizations, non-state actors.

The United Nations, whose specialized agencies were the subject of an Appendix to the 1958 edition of Oppenheim's International Law: Peace, has expanded beyond all recognition since its founding in 1945.This volume represents a study that is entirely new, but prepared in the way that has become so familiar over succeeding editions of Oppenheim. An authoritative and comprehensive study of the United Nations' legal practice, this volume covers the formal structures of the UN as it has expanded over the years, and all that this complex organization does. All substantive issues are addressed in separate sections, including among others, the responsibilities of the UN, financing, immunities, human rights, preventing armed conflicts and peacekeeping, and judicial matters. In examining the evolving structures and ever expanding work of the United Nations, this volume follows the long-held tradition of Oppenheim by presenting facts uncoloured by personal opinion, in a succinct text that also offers in the footnotes a wealth of information and ideas to be explored. It is book that, while making all necessary reference to the Charter, the Statute of the International Court of Justice, and other legal instruments, tells of the realities of the legal issues as they arise in the day to day practice of the United Nations. Missions to the UN, Ministries of Foreign Affairs, practitioners of international law, academics, and students will all find this book to be vital in their understanding of the workings of the legal practice of the UN. Research for this publication was made possible by The Balzan Prize, which was awarded to Rosalyn Higgins in 2007 by the International Balzan Foundation.

Aside from self-defence, a UN Security Council authorisation under Chapter VII is the only exception to the prohibition on the use of force. Authorisation of the use of force requires the Security Council to first determine whether that situation constitutes a ‘threat to the peace’ under Article 39. The Charter has long been interpreted as placing few bounds around how the Security Council arrives at such determinations. As such commentators have argued that the phrase ‘threat to the peace’ is undefinable in nature and lacking in consistency. Through a critical discourse analysis of the justificatory discourse of the P5 surrounding individual decisions relating to ‘threat to the peace’ (found in the meeting transcripts), this book demonstrates that each P5 member has a consistent definition and understanding of what constitutes a ‘threat to the peace’.

Offering a new interdisciplinary approach to global justice and integrating the insights of international relations and contemporary ethics, this book asks whether the core norms of international law are just by appraising them according to a standard of global justice grounded in the advancement of peace and protection of human rights.