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Max Planck Encyclopedia of Public International Law [MPEPIL]

Collective Security

Erika de Wet, Sir Michael Wood

From: Oxford Public International Law (http://opil.ouplaw.com). (c) Oxford University Press, 2021. All Rights Reserved.date: 25 January 2021

Collective security — Humanitarian intervention — Aggression — Armed conflict, international — Ethnic cleansing — Genocide

Published under the auspices of the Max Planck Institute for Comparative Public Law and International Law under the direction of Professor Anne Peters (2021–) and Professor Rüdiger Wolfrum (2004–2020). 

1 Collective security has been referred to as ‘a system, regional or global, in which each state in the system accepts that the security of one is the concern of all, and agrees to join in a collective response to threats to, and breaches of, the peace’ (Lowe and others 13). In recent years it has come to have a wider meaning. In the 2005 UNGA Report ‘In Larger Freedom’ (at paras 77–78), the United Nations Secretary-General embraced a comprehensive concept of collective security as suggested by the High-level Panel on Threats, Challenges and Change which was...
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