Strategic autonomy: A ‘quantum leap forward on’ European total defence?

Abstract In the last decade, the idea of total defence – a whole-of-society approach integrating civilian and military capabilities – has gained renewed prominence in Europe, including within the European Union (EU). Concurrently, the concept of strategic autonomy – the EU’s ability to act independently – has emerged as a central feature in its security policy, driving ambitions for ‘a quantum leap forward on security and defence’. 1 Despite significant conceptual overlaps, the relationship between total defence and strategic autonomy remains underexplored. Drawing on discursive institutionalism and the ideational power framework, this article examines EU security discourses from 2010 to 2024, analysing how strategic autonomy has shaped the development of European total defence. The study considers three dimensions of ideational power – through, over , and in – showing that while the idea of total defence predates strategic autonomy, the latter has certainly elevated the idea of European total defence and enhanced collective capability building, especially through entwining civilian and military domains, and yet has constrained the establishment of a unified military defence. The findings underscore the long-term discursive evolution underpinning the EU’s security strategy and its ongoing efforts to consolidate a European total defence framework, now more tangible than ever.