NATO Launches 'Arctic Sentry' to Bolster High North Security

New multi-domain activity will coordinate exercises, surveillance, and operations across the Arctic region

Published on Feb. 25, 2026

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NATO has launched a new 'Arctic Sentry' activity to strengthen the Alliance's posture and presence in the strategically important Arctic and High North region. Led by Joint Force Command Norfolk, Arctic Sentry will leverage a range of manned and unmanned assets to enhance persistent surveillance, critical infrastructure protection, and deterrence against potential threats from Russia and China in the region.

Why it matters

The Arctic is becoming an increasingly contested strategic domain as melting sea ice opens new shipping routes and Russia and China expand their military and economic activities in the region. Arctic Sentry aims to improve NATO's ability to monitor the region, respond to incidents, and deter destabilizing actions that could threaten Allied security and interests.

The details

Arctic Sentry will build on NATO's growing focus on Arctic security, coordinating national exercises like Denmark's 'Arctic Endurance' and Norway's 'Cold Response' into a unified operational approach. The activity will utilize a range of maritime autonomous systems (MAS) including unmanned aerial vehicles (UAVs), unmanned surface vessels (USVs), and autonomous underwater vehicles (AUVs) to provide persistent domain awareness, critical infrastructure protection, and targeting support for traditional military forces.

  • NATO Secretary General Mark Rutte and U.S. President Donald J. Trump agreed last month that NATO should take on more responsibility for Arctic defense.
  • Arctic Sentry was officially launched on February 11, 2026.

The players

U.S. Air Force Gen. Alexus G. Grynkewich

Supreme Allied Commander Europe, who oversees the planning and execution of all NATO exercises, activities and operations.

Joint Force Command Norfolk (JFC Norfolk)

NATO's newest Joint Force Command, whose area of responsibility now includes the entire Arctic and High North region.

Denmark

Conducting 'Arctic Endurance', a series of multi-domain exercises to enhance Allied ability to operate in the region.

Norway

Hosting the upcoming 'Cold Response' exercise, where troops from across the Alliance have already begun to arrive.

NATO Allied Command Transformation

Collaborating with JFC Norfolk on Arctic Sentry.

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What they’re saying

“Arctic Sentry underscores the Alliance's commitment to safeguard its members and maintain stability in one of the world's most strategically significant and environmentally challenging areas.”

— U.S. Air Force Gen. Alexus G. Grynkewich, Supreme Allied Commander Europe (NATO)

What’s next

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The takeaway

Arctic Sentry represents NATO's shift from episodic presence to a web of manned and unmanned assets designed to monitor and shape the battlespace in the Arctic and High North, with maritime autonomous systems playing a central role in enhancing domain awareness, protecting critical infrastructure, and deterring potential adversary actions in this strategically vital region.