Germany: Military Alliances

The United Kingdom is taking significant steps to deepen both military and broader defence cooperation with Germany. This effort is anchored in the landmark Trinity House Agreement, signed in October 2024, which established a strategic framework for bilateral defence collaboration.

Under this agreement, the UK and Germany have launched a series of Lighthouse Projects that span deep precision strike capabilities and collaboration across all domains. We are also leading the development of a new long-range strike system. As outlined in the Strategic Defence Review, the UK and Germany share the ambition to deliver conventional deep precision strike capabilities, collaboration on which can deliver an important contribution to European strike capability through the ELSA programme, a multinational effort to enhance Europe's defence systems by the 2030s.

Under Trinity House we have intensified cooperation in undersea warfare, including collaboration on P-8A Maritime Patrol Aircraft and a shared procurement of Sting Ray torpedoes. We have twice now had German crews fly on UK P-8A Maritime Patrol Aircraft, supporting NATO's Baltic Sentry and helping to prepare for the German aircraft delivery later this year.

The UK and Germany are collaboratively seeking closer bilateral relations to strengthen collective security in the Euro-Atlantic, developing cost-effective means of delivering priority capabilities as set out in the Strategic Defence Review.