Written Question·Ministry of Defence·UIN 75029

Submarines: Nuclear Weapons

Tabled: 4 September 2025

Answered: 15 September 2025

Question

Mike Wood

Conservative — Kingswinford and South Staffordshire

To ask the Secretary of State for Defence, with reference to p.6 of the Strategic Defence Review, published on 2 June 2025, if he will publish a breakdown of the associated costs for the sovereign warhead programme over this Parliament; and whether he exp

Answer

Luke Pollard

The £15 billion to be invested in this Parliament covers a range of programmes across the nuclear warhead portfolio to support the sovereign warhead. That investment includes sustaining our current Mk4A warhead; developing Astraea, our sovereign replaceme...

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