U.S. and NATO allies intercepted Russian submarines in Arctic waters near the Svalbard archipelago earlier this spring, thwarting an exercise designed to simulate the disabling of critical undersea cables, according to two Western officials.
The operation, carried out by Russia's GUGI undersea warfare directorate, involved deep-sea submersibles practicing the deployment of sophisticated technology intended to sever or disable communication cables without leaving traceable evidence. The joint effort involved Britain, Norway, and the United States, which tracked and confronted the Russian vessels, prompting them to eventually leave the area without completing their simulated mission.
While Britain and Norway had previously disclosed uncovering covert Russian activities in Arctic waters in April, the specifics of this new weapon, the exact location, and the U.S. involvement had not been previously reported. This incident occurs amid growing concerns among Western intelligence agencies that Russia may be escalating sabotage operations in Europe and preparing for potential conflict with NATO. U.S. intelligence analysts are reportedly increasingly worried that Russia might test NATO's mutual defense pact, Article 5, with the destruction of subsea cables being a potential component of such an effort.
Undersea cables, some no thicker than a garden hose, are vital for global internet connectivity and financial transactions. Their strategic importance has made them targets in past conflicts. The specific cables linking Svalbard to mainland Norway, lying as deep as 2,700 meters, carry significant satellite data for NASA's Near Space Network. Russia's Defense Ministry and the Kremlin have not commented on the incident, with Russia consistently denying sabotage operations in NATO countries or plotting confrontation.
Some Western officials view the alleged Russian targeting of European states as increasing, particularly as the front lines in Ukraine have become largely static. Incidents have been confirmed in countries like Poland, Lithuania, and Romania, with a recent attempted drone attack on Leipzig/Halle Airport in Germany prompting diplomatic responses.
Central Intelligence Agency Director John Ratcliffe reportedly visited Moscow in August to warn Russian intelligence counterparts against escalating sabotage operations in Europe. It remains unclear if the subsea operations were specifically discussed.
Following the Arctic confrontation, British and Norwegian officials reportedly presented their findings to Moscow, signaling awareness of the new Russian technology and hoping to deter its use. No cables were damaged during the exercise. Norway's Defense Minister Tore Sandvik stated that the joint operation sent a clear message to Russia about the detection and consequences of targeting critical infrastructure, emphasizing that escalating tensions in the High North are not in anyone's interest.
NATO referred inquiries to Norwegian and UK authorities. Britain's Defense Ministry pointed to earlier statements acknowledging Russian GUGI's covert activities. Washington and London have both previously imposed sanctions on GUGI.
The incident underscores the strategic importance of the Bear Gap, a stretch of water between Svalbard and mainland Norway, which Russian submarines must traverse to reach the Atlantic. Britain recently deployed forces to Jan Mayen island, alongside Norwegian and U.S. allies, for an exercise demonstrating NATO's joint operational capability in the High North.
NATO has increased its focus on subsea infrastructure security since the 2022 sabotage of the Nord Stream pipelines. Recent years have seen a rise in vessels slowly traversing sensitive subsea infrastructure, a practice known as drifting, which security experts interpret as potential reconnaissance for sabotage. Data from maritime risk analytics firm Windward indicated a significant increase in such activity in the North Sea and South China Sea. While surveying infrastructure in international waters is not illegal, the extensive mapping is viewed with suspicion.
In response to these activities, initiatives like NATO's Baltic Sentry monitoring system and the UK-led Nordic Warden have been launched to increase patrols of critical infrastructure. Despite these efforts, at least 11 subsea cables in the Baltic Sea were reported damaged or cut between October 2023 and the end of last year. Analysts suggest Russia and China are the most active underwater threats, with the expanding global network of subsea cables, driven partly by AI, leaving Europe potentially vulnerable due to a diminished capacity to protect its infrastructure.