All five of the UK’s operational Astute-class nuclear-powered attack submarines are unavailable due to maintenance bottlenecks exacerbated by inadequate infrastructure. The lack of dry-dock space, spare parts, and specialist engineers at the only facility equipped to service these vessels has led to extended delays. This situation has drawn criticism from former naval officers, who warn that Britain appears “toothless” against Russia.

• All five operational Astute-class nuclear-powered attack submarines in the UK are currently out of action.
• The unavailability is due to maintenance bottlenecks and inadequate infrastructure, including limited dry-dock space and shortages of spare parts and engineers.
• Two submarines are inactive at Faslane, two are undergoing extended maintenance at Devonport, and another is undergoing routine procedures after deployment.
• Former naval officers have expressed concern that the situation leaves Britain looking “toothless” amid tensions with Russia.
• Reports indicate that the UK military has failed to spend significant allocated funds for submarine maintenance due to constant delays.