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France: Military Alliances

Asked by Mark PritchardConservativeMinistry of DefenceTabled Answered 27 February 2026UIN 113496

The question

To ask the Secretary of State for Defence, if he will provide details of collaboration with the French Government on the UK nuclear deterrent.

Answered by Luke Pollard

The UK and France work closely together on a range of nuclear research and technology matters, including as part of the 2010 Teutates Treaty. Our deepening co-operation under the 2025 Northwood Declaration includes nuclear policy, capabilities and operations.

Release of information relating to the UK’s nuclear deterrent and our collaboration with Allies on nuclear matters is considered on a case-by-case basis, taking into account considerations regarding national security, defence and international relations.

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