Chapter 2 establishes the theoretical-conceptual foundations for the empirical analysis of UN interventions as discourses and communicative practices in international organizations. When analyzed from a critical–deconstructive perspective, UN interventions can first be understood as security practices that emerge from international peace and security discourses and serve to stabilize (political) identities and representations in a security-relevant and policy-oriented manner. Second, through the alignment of identities and representations along three dimensions—relational, temporal and spatial—UN interventions stabilize subject relationships (the social order) and thereby (re)produce a specific social space. Identity and representations thus constitute central concepts around which social dynamics converge. In consequence, they need to substantially shape the empirical analysis. This chapter draws an outline for a critical–deconstructive conceptual framework for the analysis of the interrelation between discursive constitution and constitutive practices of UN interventions.