Question to the Ministry of Defence:

To ask the Secretary of State for Defence, with reference to the current Prime Minister's announcement of the nuclear triple lock and his statement on the delivery of all future upgrades needed for submarines of 2 June 2024, what estimate he has made of the potential cost of the triple lock in relation to all future upgrades of the nuclear deterrent.

The Government is totally committed to the UK’s independent nuclear deterrent, and will take all steps necessary to ensure it remains credible and effective. We are building four new Dreadnought Class submarines to replace the current Vanguard Class and developing a replacement nuclear warhead, while also maintaining our existing stockpile. We are recapitalising critical elements of our supporting infrastructure to modernise our naval bases and manufacturing capabilities to meet future fleet and weapons requirements.