The New Transatlantic Defence Architecture: Integrating ReArm Europe, NATO DIANA & Industrial Finance

Europe’s approach to defence innovation and funding has fundamentally shifted since 2022. Russia’s invasion of Ukraine in 2022 jolted the EU and NATO into recognizing that existing, mostly civilian-focused instruments were insufficient for the new security reality [1] . Prior to that, the EU’s involvement in defence research was nascent – the European Defence Fund (EDF) became operational under Regulation (EU) 2021/697, anchored in the EU Treaties’ internal-market and research provisions rather than in the CFSP budget framework, in order to remain treaty-compliant while financing collaborative defence R&D [2] . In response to urgent capability gaps highlighted by the war, the EU pushed the envelope further: in 2023 it adopted emergency measures like the Act in Support of Ammunition Production (ASAP) and the EDIRPA procurement act, drawing on EU budget funds to boost arms production [3] . Meanwhile, Member States ramped up their own defence spending and NATO refocused on collective deterrence, but it became clear that traditional market mechanisms and peacetime innovation cycles would not deliver the needed technologies fast enough. A strategic inflection point arrived with the EU’s 2022 Strategic Compass and Versailles Declaration, which called for significantly strengthening Europe’s defence capabilities by 2030 [1] .