The programme combines traditional military assets, such as Royal Navy warships and maritime patrol aircraft, with new technologies including autonomous underwater vehicles, autonomous surface vessels, advanced sensors and artificial intelligence.
The initiative was developed in response to increasing concerns about Russian activity around critical undersea infrastructure, including communications cables, energy pipelines and key maritime routes.
The UK Government has stated that Atlantic Bastion will help detect, track, and if necessary, respond to adversaries operating beneath the ocean surface across large areas of the North Atlantic.
Key Objectives
- Protect critical undersea infrastructure, including internet cables and energy pipelines.
- Enhance anti-submarine warfare capabilities for the UK and NATO.
- Deploy networks of autonomous sensors across strategic areas such as the 'Greenland-Iceland-UK', or GIUK Gap.
- Use AI and uncrewed systems to provide persistent maritime surveillance over vast ocean areas.
How It Works
Atlantic Bastion is intended to create a 'system of systems', which includes uncrewed underwater vehicles, also known as UUV's, autonomous surface vessels and acoustic detection systems powered by AI.
As part of the ongoing mission, it will also involve anti-submarine warfare frigates of the Royal Navy, the P-8A Poseidon maritime patrol aircraft of the Royal Air Force working alongside the capabilities and sensor networks of NATO.
The overall aim is to use this array of assets and capabilities to form a layered surveillance and defence network, capable of monitoring submarine movements across the North Atlantic.
Together, these assets will form a layered surveillance and defence network capable of monitoring submarine movements across the North Atlantic.
Why It Matters
The North Atlantic remains strategically important not just to the UK but to the NATO alliance as it contains critical shipping lanes, military routes, communication cables and energy infrastructure which links North America and Europe. The UK Government reported a 30% increase in Russian vessels and submarines mapping critical underwater infrastructure over recent years, with 'The Strategic Defence Review 2025', highlighting the need to monitor and defend against any adversarial activity around critical infrastructure.
The introduction of Atlantic Bastion aims to strengthen NATO's ability to maintain awareness of underwater activity and deter hostile actions against these vital assets.
The next generation of the maritime defence programme for the UK, Atlantic Bastion will be using AI, autonomous systems, warships and aircraft to create a persistent underwater surveillance network across the North Atlantic.
