type: timeline_event
NATO Secretary General Mark Rutte announces the launch of Arctic Sentry, a new multi-domain activity designed to bolster security in the Arctic and High North by bringing together all NATO and Allied activities in the region under unified command for the first time. The mission represents NATO's strategic response to both rising great-power competition in the Arctic and the political crisis created by Trump's Greenland ambitions.
Arctic Sentry will be led by Joint Force Command Norfolk and operates as an "increased vigilance activity" similar to the alliance's Baltic Sentry and Eastern Sentry operations, involving space, cyber, land, sea, and air defenses. Rutte states: "What is really new about it is that for the first time now, we will bring everything we do in the Arctic together under one command."
Initial activities include Denmark's Operation Arctic Endurance and Norway's Exercise Cold Response, involving tens of thousands of personnel and equipment designed to operate in Arctic conditions. Germany commits to sending four Eurofighter jets, while the United Kingdom pledges to deploy 1,500 Royal Marine Commandos to Norway in March and plans to double British troops in Norway to 2,000 over three years.
The mission follows Trump's meeting with Rutte in Davos where the two agreed NATO should take collective responsibility for Arctic defense. While framed as addressing Russian military activity and Chinese influence in the Arctic, Arctic Sentry also serves as NATO's diplomatic mechanism to defuse tensions over Greenland while demonstrating allied commitment to Arctic security without conceding to U.S. territorial demands against Denmark.