Over the past decade, the UK and the countries of the EU have experienced very similar, and deeply troubling, security challenges as a result of the military threat from Russia, disengagement and hostility from the US, and the possibility of economic coercion from China. The UK’s 2025 National Security Strategy specifies a clear way forward, indicating a need for what it calls a “rebalancing” of Euro-Atlantic order, involving closer integration, interoperability and defence industrial compatibil