questionText: 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, how many orders for the Herne submarine have been placed since 5 July 2024.
answerText: No contract or orders have been placed for the Herne large diameter uncrewed underwater vessel. Procurement of such platforms would be conducted in accordance with UK commercial law, through a fair competition. The first formal element of the tendering pr...
heading: Unmanned Marine Systems: Procurement