Last Updated on April 9, 2026 by allieddispatch | Published: April 9, 2026
The Royal Navy has confirmed the completion of a concentrated ten-day operation to monitor a series of Russian warships and a surfaced submarine as they transited through UK-interest waters.
The mission, which concluded today, April 9, 2026, saw a coordinated effort by Type 23 frigates, patrol vessels, and specialist aircraft to maintain a “constant watch” on Russian activity in the English Channel and the North Sea.
The Vessels Under Watch
The Royal Navy tracked four distinct Russian Navy units during the ten-day window:
- The Krasnodar: A Kilo-class diesel-electric submarine, which was monitored while operating on the surface.
- The Admiral Grigorovich: A modern, Kalibr-missile-capable frigate.
- The Severomorsk: A Udaloy-class guided-missile destroyer.
- The Aleksandr Shabalin: A Ropucha-class large landing ship.
The UK Response
The operation involved a rotation of UK assets to ensure continuous coverage:
- HMS Mersey & RFA Tideforce: The Portsmouth-based patrol ship Mersey was activated three times in the last week alone to report on Russian movements. She was joined by RFA Tideforce.
- HMS Somerset: The Type 23 frigate intercepted the destroyer Severomorsk near the coast of Brittany, shadowing the vessel through the Channel alongside HMS St Albans, which joined her briefly.
- Aerial Surveillance: Wildcat helicopters from 815 Naval Air Squadron provided high-speed visual identification and persistent tracking from above.
Protecting Critical Infrastructure
While the transit through the Channel is a common route for Russian vessels moving between the Northern and Mediterranean Fleets, this latest mission comes amid heightened concerns regarding undersea security. HMS Somerset is now beginning a four-month deployment in the North Atlantic, specifically tasked with monitoring submarine movements and protecting critical undersea infrastructure (CUI).
Lieutenant George Hage, Executive Officer of HMS Mersey, stated:
“Our ability to provide a presence to monitor the Russian activity in UK waters is no small feat, especially with such an increase in activity over the last few months. I am extremely proud of Mersey’s ship’s company for their continued dedication.”
The Allied Dispatch View
At Allied Dispatch, we have been tracking the increased frequency of these transits. The deployment of “high readiness” units like HMS Mersey and the transition of HMS Somerset to North Atlantic duties show that the “Silent War” for maritime situational awareness is operating at a high tempo in 2026. And serves as a constant reminder of the threat posed by Russia.