In the article Navigating Collaboration: Understanding Civil- Military Interactions in Swedish Total Defence From a Security Network Perspective we investigates collaboration from the perspective of both civilian and military actors alike. We understand collaboration to be a relational concept, a collective activity carried out jointly by actors in pursuit of specific goals. The relations between “civilian” and “military” actors, and their perspectives, are particularly relevant for understanding how representatives of seemingly disparate organizations, organizational cultures and professional identities understand collaboration within the framework of contemporary total defence. Thus, this exploratory study aims to further our understanding of civil-military collaboration in complex defence networks.