Written Question·Ministry of Defence·UIN 94530

USA: Military Alliances

Tabled: 25 November 2025
Answered: 1 December 2025
Named Day

Question

Bell Ribeiro-Addy

LabourClapham and Brixton Hill

To ask the Secretary of State for Defence, how many U.K.-US working groups currently exist pursuant to the 1958 Mutual Defense Agreement on Atomic Energy Matters; what subjects do they cover; and what is the annual cost of servicing these working groups.

Answer

Luke Pollard
There are 21 current UK-U.S. Joint Working Groups (JOWOGs), an information exchange arrangement with the U.S. under the Mutual Defense Agreement. The costs of participating in those JOWOGs is not held centrally in the format required and that information ...

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