This article investigates the defence policies of the Nordic and Baltic countries from the perspective of shared security culture. To that end, the article analyses conceptualisations of total defence and resilience in a comparative perspective and inquires into existing and prospective regional cooperation in this area, in order to determine to what degree there exists a common security culture based on shared norms and identities and manifested in practices of security cooperation. The study, which draws on 19 interviews with civil servants from the eight states of the region, shows that while there is fertile ground for a shared security culture to emerge, thus far, due to variations in conceptualisations, threat perceptions, and interaction preferences, only three Nordic states show clear signs of a shared security culture. The study contributes to existing research by situating the concept of resilience in (total) defence discourses; by expanding the theoretical work on security culture to an international context; and by offering a unique empirical account of the process of (re)building total defence policies in a region crucial to European security.