To ask the Secretary of State for Defence, what estimate he has made of the amount that will be spent on Trident renewal in financial years 2023-40.

To ask the Secretary of State for Defence, how much funding his Department will provide for the renewal of Trident.

The Dreadnought Class submarine build programme remains on track to deliver within the estimated budget, announced in the 2015 Strategic Defence and Security Review, of £31 billion with an additional £10 billion contingency. It is too early to provide cost estimates for the Replacement Warhead programme as much will depend on the eventual design requirements, and work is underway to agree cost estimates and funding arrangements.