Question to the Ministry of Defence:

To ask the Secretary of State for Defence, with reference to recommendation 34 of the Strategic Defence Review 2025, published on 8 July 2025, what recent progress he has made in determining what the post-Dreadnought nuclear deterrent would be.

This Government is fully committed to the United Kingdom’s independent nuclear deterrent, underpinned by our triple lock commitment to continue to build the four new Dreadnought Class submarines, maintain our continuous at sea deterrent and deliver all the required upgrades, including the replacement warhead.

The Government has accepted all of the Strategic Defence Review’s recommendations, including the need to start to define the requirement for the post-Dreadnought nuclear deterrent within this Parliament, and is currently working to progress this.