UK Defence Secretary John Healey reveals UK's response to Russian submarine operation in the North Atlantic

Summary

UK Defence Secretary says UK and allies monitored Russian submarines in the North Atlantic for a month near critical undersea cables and pipelines, warning Russia against sabotage.

In April 2026, the UK disclosed a month-long operation where British and allied military assets tracked a Russian Akula-class attack submarine and two specialist deep-sea research submarines operating covertly in the North Atlantic near UK waters. The submarines were surveilling critical undersea infrastructure including cables and pipelines. Using Royal Navy warships and RAF P-8a aircraft deploying sonar buoys, UK forces ensured continuous monitoring. The Akula submarine withdrew after tracking, while the other vessels remain monitored. UK Defence Secretary John Healey warned President Putin against any sabotage attempts, emphasizing the resilience of British underwater networks and the nation's commitment to protect them. The operation used over 500 UK personnel. Healey also detailed UK actions disrupting Russian shadow oil fleet activities in the English Channel, aimed at curtailing Kremlin's illegal oil revenues. Moreover, Healey reaffirmed US solidarity with NATO and highlighted the UK's increased defense spending amid global conflicts, including the Middle East war, which Russia allegedly seeks to use as a distraction. This marks a significant hybrid warfare incident involving maritime surveillance, counterintelligence, and protection of critical infrastructure.

Evidence

"I'm making this statement to call out this Russian activity," Defence Secretary John Healey.
"To President Putin, I say - we see you, we see your activity over our cables and our pipelines, and you should know that any attempt to damage them will not be tolerated and will have serious consequences."
"Putin's covert operation failed because this government is delivering our first duty - protecting Britain."
"We watched them, we were able to track them, we dropped sonar buoys to demonstrate to them that we were monitoring every hour of their operation."
"A Royal Navy warship and Royal Air Force P-8a aircraft, alongside allies, ensured that the Russian submarines were monitored 24/7."
"The Akula submarine subsequently retreated home, having been closely tracked throughout, and we continue to monitor the two GUGI submarines in and around wider UK waters."
"There is no evidence that there has been any damage. But with allies, we'll ensure that this is now verified."
"The UK has one of the most resilient undersea networks of any nation, with, in-built contingencies if there are damage."
"The UK stands ready to take action to interdict shadow fleet vessels, making it harder for Putin to pursue his illegal oil revenues."
"Hard power is the currency of the age," said Healey on the need for increased defense spending and leadership within NATO.
"I'm pretty clear that Putin would want us to be distracted by the Middle East... but we will not take our eyes off Putin."

Classification

Confidence: High

The event clearly details Russian hostile actions involving submarines tracking and potential sabotage of UK's critical undersea infrastructure and Britain's active defense tracking and countermeasures using military assets and personnel.