The Royal Navy conducted a three-day operation to monitor Russian naval activity in the North Sea and English Channel, tracking two Russian warships alongside two sanctioned cargo tankers. The operation involved three British warships—HMS Duncan, HMS St Albans, and HMS Severn—and the deployment of a Merlin helicopter from HMS St Albans, enhancing the Navy’s surveillance as the Russian vessels approached the Strait of Dover. Separately, the British warship HMS Mersey followed the Russian resupply ship Akademik Pashin as it transited the same waters.

The Royal Navy described the mission as “intense,” emphasizing its role in safeguarding shipping lanes and demonstrating deterrence against Russia’s so-called “shadow fleet,” which comprises vessels believed to be circumventing international sanctions. While details on the origin, destination, and cargo of the Russian tankers were not disclosed, the operation reflected an ongoing effort by the UK to monitor and restrict Russia’s maritime logistics within its territorial waters.

First Sea Lord and Chief of Naval Staff General Sir Gwyn Jenkins praised the operation’s success but cautioned that Russia is unlikely to halt its deployments in the region. He noted that since the seizure of the sanctioned tankers Smyrtos in the Channel in June, Russian shadow fleet vessels have been compelled to alter their routes, increasing operational costs and delays. This shift has forced Moscow to allocate naval resources away from their primary missions to protect these logistical vessels.

“Since that successful operation, we have seen Russian shadow fleet vessels increasingly forced to change their routes, imposing significant cost and delays to their journeys,” Jenkins said. “This approach is forcing Moscow to divert Russian warships away from their core purpose. That is because Russia knows we stand ready to act again, should it be required.” Nevertheless, he warned against complacency, emphasizing that shadow tankers remain an ongoing threat to maritime security and environmental safety.

Royal Navy officials also reported a 25 percent increase in operations tracking Russian activity during the first eight months of 2026 compared with the previous year. Additionally, some Russian-flagged vessels have been suspected of attempting sabotage against undersea communication cables, further heightening concerns about maritime security in the region.