The UK, Netherlands, and Finland established a new multilateral fund for joint defense procurement to improve efficiency during Europe's rearmament. The mechanism will operate like an international financing institution, using guarantees and capital to attract private investment, aiming to strengthen collective deterrence and expand defense industrial capacity.

The initiative seeks to reduce costs by pooling orders for tanks, munitions, and missiles instead of competing for limited supplies. Germany remains unconvinced despite planning a €650bn defense spending splurge between 2025-2030. Bruegel think-tank estimates that aggregating demand could halve costs per unit.

This defense mechanism addresses major security environment shifts while helping the UK meet NATO's 3.5% of GDP defense spending target by 2035. Unlike previous rearmament bank attempts, this initiative allows weapons to be temporarily stockpiled, keeping associated debt off participating countries' balance sheets.