Last Updated on April 2, 2026 by allieddispatch | Published: March 20, 2026
By Allied Dispatch UK
MARITIME SECURITY | Mediterranean & UK Home Waters
The Royal Navy has played a pivotal role in a high-stakes international operation to disrupt Russia’s “shadow fleet.” HMS Cutlass, a fast patrol vessel of the Gibraltar Squadron, was dispatched to track and gather intelligence on the sanctioned Russian oil tanker MV Deyna as part of a coordinated French-led boarding mission in the Mediterranean.
The MV Deyna is currently under both UK and European sanctions for its role in facilitating the trade of illegal oil, a primary funding source for the Kremlin’s ongoing war efforts.
The ‘Eyes’ of the Strait: HMS Cutlass in Action
Operating from the UK’s strategic vantage point in Gibraltar, HMS Cutlass provided persistent surveillance and high-definition imagery of the vessel. This intelligence was critical for French forces as they prepared to board and inspect the tanker.
- Strategic Positioning: By utilising Gibraltar’s unique geography, the Royal Navy acted as a “gatekeeper,” ensuring the sanctioned vessel could not transit unmonitored.
- Repeated Success: This marks the second time in 2026 that the Gibraltar Squadron has been activated for such a mission, following the successful boarding of the tanker Grinch in January.
Lieutenant Commander Jonathan Davies, Commanding Officer of the Royal Navy Gibraltar Squadron, emphasised the value of the unit’s presence:
“It is hugely important to the UK’s and our partners’ security that we maintain a presence in the region and make full use of our strategic location—reassuring both Gibraltarians and our allies that we remain firmly committed to ensuring maritime security.”
The Domestic Front: HMS Mersey Shadows the Channel
The Mediterranean intercept comes the same week as a separate, 48-hour high-readiness operation in the English Channel. HMS Mersey and a Wildcat HMA2 helicopter from 815 Naval Air Squadron were activated to monitor the Russian Steregushchiy-class frigate RFN Soobrazitelny and the sanctioned tanker MV Anatoly Kolodkin.
Allied Dispatch UK Analysis: Squeezing the Shadow Fleet
Defence Secretary John Healey MP noted that “starving Putin’s war machine of funds” remains a top government priority. For our readers, these operations serve as a demonstration of NATO’s maritime strategy.
By coordinating the capabilities of the Gibraltar Squadron with the boarding and enforcement by French forces, NATO is successfully closing the gaps that Russia’s shadow fleet relies on.