Defence Data Architecture
European Defence Data Space, cross-member-state data governance, NATO/EU interoperability standards and AI-ready defence data infrastructure
Europe’s defence transformation is increasingly becoming a data architecture problem. Modern military capability depends not only on platforms, sensors and weapons systems, but on the ability to govern, share, secure and exploit data across national borders, industrial supply chains and allied command structures. The emerging European Defence Data Space should therefore be understood as more than a cloud or digitalisation initiative: it is a strategic infrastructure layer for AI-enabled defence, software-defined systems, digital twins, predictive maintenance, multinational readiness and European industrial sovereignty. The central challenge is not simply where defence data is stored, but who controls it, who may access it, under which classification rules, through which standards, and for what operational or AI-training purposes.
The report analyses this problem in four steps. It first explains why defence data architecture is becoming a new industrial control layer in European defence policy. It then examines the institutional framework linking the European Defence Data Space, the EU Data Union agenda and wider common European data-space architecture. The third section assesses the technical and governance requirements of a federated defence data infrastructure, including sovereignty, classification, interoperability, NATO compatibility, cybersecurity and AI-readiness. The final section translates these findings into industrial, financial and legal implications for defence primes, cloud providers, cybersecurity firms, AI and defence-tech companies, investors, regulatory counsel and public authorities.