NATO forces intercept Russian submarines testing undersea cable sabotage technique in Arctic
British, Norwegian and U.S. naval units stopped Russian vessels that were rehearsing a method to damage subsea communication cables near Svalbard, prompting diplomatic warnings from NATO officials.
British, Norwegian and U.S. naval forces intercepted Russian submarines operating in Arctic waters near the Svalbard archipelago this spring. According to two Western officials who spoke on condition of anonymity, the vessels were part of a test by Russia’s GUGI undersea warfare directorate to simulate the deployment of a technology capable of disabling subsea cables without leaving obvious evidence. The joint operation tracked the Russian craft, prevented them from completing the exercise and forced them to leave the area.
Norway’s defence minister, Tore Sandvik, said the operation sent a clear message that covert activities targeting critical infrastructure would be detected and met with consequences. British officials confirmed that the exercise involved two 1,400-kilometre fiber-optic cables linking Svalbard to mainland Norway, which carry substantial satellite data from the SvalSat ground station.
U.S. intelligence analysts have expressed concern that Russia could be testing the limits of NATO’s collective defence commitments, including the possibility of using cable sabotage as a strategic tool. While Russia’s defence ministry declined to comment, the Kremlin has repeatedly denied conducting sabotage operations in NATO states.
The incident follows a series of reported Russian activities in European waters, including alleged drone attacks and increased mapping of subsea infrastructure. NATO has responded with enhanced monitoring programmes such as Baltic Sentry and the Nordic Warden, and recent joint exercises have been conducted to demonstrate the alliance’s ability to operate in the High North.