Overview
- The Ministry of Defence confirmed over the weekend that every one of the five currently active Astute-class hunter-killer submarines is alongside in port for maintenance or technical work rather than at sea.
- The MoD says British waters remain protected and has activated its Submarine Maintenance Recovery Plan, added short-term engineering space at the Clyde, awarded a stopgap maintenance contract to Babcock, and is progressing design work on Programme Euston for floating dry docks.
- Chief of the Defence Staff Sir Richard Knighton warned the security environment is the most dangerous he has known and military analysts say the temporary loss of hunter-killers raises the risk of Russian probing, harassment and threats to undersea cables and power lines.
- Defence sources and analysts trace the shortage to a long-running maintenance backlog, a bottleneck in deep-dock capacity concentrated at Devonport, shortages of trained maintenance staff and spare parts, and the strain caused when HMS Anson's AUKUS maintenance in Australia removed one hull from the domestic rotation.
- Political debate has intensified because the long-delayed Defence Investment Plan and contested Treasury spending choices affect how fast capacity can be rebuilt, with Programme Euston and SSN-AUKUS seen as multi-year fixes that will not resolve the immediate readiness gap.