This paper examines the Nordic Defence Cooperation (NORDEFCO) as a case study in pragmatic, regional defence collaboration. Despite being founded by states with divergent political alignments and defence doctrines, NORDEFCO has evolved into a flexible and low-threshold framework that promotes operational efficiency, logistical coordination, and strategic interoperability among its members. By tracing NORDEFCO’s institutional structure and historical development, the study assesses the model’s successes and limitations. While NORDEFCO’s achievements, such as multinational exercises, intelligence sharing, and education programmes, demonstrate the value of voluntary, sovereignty-conscious cooperation, its replicability is constrained by the unique geopolitical and cultural cohesion of the Nordic region. The paper further aims to provide an outlook into NORDEFCO’s possible avenues of expansion and prospective transformation following the NATO membership accession of all its members. The study concludes that NORDEFCO-NATO coalescence is crucial to overcome the agreement’s limitations to achieve real Nordic defence integration, arguing that NORDEFCO is likely to retain its relevance under NATO command thanks to its region-specific capability enhancement projects.