Question to the Ministry of Defence:

To ask the Secretary of State for Defence, with reference to his Department's press release entitled UK unveils new undersea warfare technology to counter threat from Russia, published on 8 December 2025, when Atlantic Bastion will reach full operating capability.

Atlantic Bastion is a portfolio of capabilities to enhance the UK’s ability to detect and act against undersea threats. Individual capabilities will have full operating capability dates as opposed to an overall date for Bastion. The Royal Navy intends to move as quickly as it can, within the bounds of UK commercial law, to bring new capabilities into service and enhance our ability to protect the UK and our allies.