This book analyses a cooperative approach to global security developed by and through the UN with particular intensity after the millennium. The approach is most clearly evident in the organization's Global Counter-Terrorism Strategy, on which the book focuses. International terrorism looms largest among a group of security challenges that the UN conceptualizes as 'threats without boundaries'. An arsenal of different responses is arrayed against it, ranging from military intervention and targeted assassination to individual sanctions and algorithmic governance. Here, our concern is with a distinct endeavour that sets out to develop an approach that is cooperative, comprehensive, and continuous. I describe this as an articulated security project.Multilateral cooperation takes on a distinctly Foucauldian flavour in the UN's project of articulating security. 1 It constitutes a 'mechanics of power' that aims to compose 'disciplinary machines in which the individual forces that 1 There is an abundance of scholarship that uses Foucault's concepts to analyze other aspects of security. For studies of good