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date: 08 March 2021

Abstract and Keywords

This chapter discusses the origins of peace operations; their evolution alongside the growing international conflict management structures of the United Nations (UN) and other international organizations; and their core functions, composition, and efficacy. Although peace operations have roots in earlier forms of military intervention, their emergence as a dominant tool for conflict management is a distinct innovation of the same internationalist project that forged the UN. Their evolution lays bare the fundamental tensions between state interests and the liberal internationalist project of a ‘world organization for the enforcement of peace’, and their execution has defined the way wars are fought today. The chapter focuses on UN peace operations throughout because they are the modal type of mission in the world. It also discusses the use of force within peace operations, an issue of growing importance that highlights fundamental tensions in the authorization and execution of internationally-led efforts to maintain global peace and security.

Keywords: United Nations (UN), Collective security, International organizations, membership, Military assistance, International organizations, resolutions, Procedural law in international organizations, International peace and security

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