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UK government unveils AI-driven undersea surveillance network used to find enemy subs — 'Atlantic Bastion' designed to counter Russian submarine activity
The UK government has unveiled the first details of Atlantic Bastion, a new undersea warfare programme designed to detect and counter Russian submarine activity across the North Atlantic. Announced during a visit to HM Naval Base Portsmouth, the initiative brings together Royal Navy vessels, RAF patrol aircraft, and a growing fleet of autonomous surface and subsurface craft, all tied into an AI-enabled acoustic surveillance network that will begin at-sea deployment next year.
The Ministry of Defence says Atlantic Bastion is a response to rising Russian submarine operations around the UK, including recent movements by the intelligence-gathering vessel Yantar. Defence Intelligence has assessed that Moscow is modernizing its undersea fleet for operations against Western infrastructure such as communication cables and pipelines. The government wants a fast route from concept to field trial, and has committed millions of pounds this year to early development while promising more funding as platforms mature.
Atlantic Bastion forms a core pillar of the Strategic Defence Review by shifting anti-submarine warfare toward a hybrid force structure that mixes crewed ships and aircraft with long-endurance unmanned vehicles. The programme’s concept of operations centres on AI-powered acoustic detection and distributed sensing, feeding data into what officials describe as a digital targeting web that would allow forces to locate and track threats across large expanses of ocean and shorten the time between detection and action.
26 UK and European firms have submitted sensor concepts, and 20 companies have already submitted proposals to develop prototypes. The government says public investment has been matched 4:1 by private funding, and the most promising designs will move from lab work to sea trials over the coming weeks. The aim is to have initial capabilities operating in the water next year while broader procurement decisions take shape.
The First Sea Lord, General Sir Gwyn Jenkins, is using today’s International Sea Power Conference to set out how Atlantic Bastion underpins a modernized Royal Navy. His remarks describe a service that has always evolved its methods in response to adversaries and now intends to combine advanced autonomy with the experience of trained crews. The programme’s geographic focus stretches from the Mid-Atlantic Ridge to the Norwegian Sea, where it will build a persistent underwater network designed to withstand interference and continue operating during crises.
Partners such as Anduril, BAE Systems, and Helsing are positioning their autonomous platforms and control systems for the programme, arguing that data-driven operations at scale are now achievable. Their contributions range from large autonomous submersibles to AI-assisted sensing frameworks tested in British waters.
Just last month, the UK Ministry of Defence demonstrated a laser capable of shooting down high-speed drones travelling at 400mph, at a cost of $13 per shot.
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Luke James is a freelance writer and journalist. Although his background is in legal, he has a personal interest in all things tech, especially hardware and microelectronics, and anything regulatory.
They don't need AI, they need RI (real intelligence) as in humans constantly monitoring their cables and their oceanic territories. AI can be subverted too easily, and fooled, as well.
