Exercise Northern Viking Marks 75 Years of Defense Cooperation

U.S. service members arrived in Keflavik, Iceland, yesterday, joining forces with the Icelandic Coast Guard and other NATO allies for the U.S. 6th Fleet’s Exercise Northern Viking 2026.

Participating nations include Belgium, Denmark, France, Iceland, Norway, Poland and the U.S., alongside specialized assets and personnel assigned to the Allied Maritime Command and NATO Joint Force Command Norfolk.

“Our defense cooperation with the United States has thrived for 75 years because it has never stood still; it has developed to meet [the] evolving challenges of our time,” said Þorgerður Katrín Gunnarsdóttir, Iceland’s minister for foreign affairs, during the exercise’s opening ceremony. “The best way to celebrate this anniversary is not merely by commemorating our partnership, but by actually practicing it — together and alongside our allies. Northern Viking is precisely that, a demonstration that the commitments we have made to one another are dynamic, practical and built on trust, underpinned by shared interests.”

This year’s iteration of the biennial exercise marks the 75th anniversary of the 1951 bilateral defense agreement between Iceland and the U.S. Running from Aug. 22 to Sept. 3, Northern Viking will challenge joint and coalition forces with a series of highly realistic training scenarios.

Key training opportunities will focus on antisubmarine warfare, mine countermeasures, expeditionary construction, search and rescue, humanitarian medical response and disaster response.

“Seventy-five years of bilateral defense cooperation is a testament to the unbreakable bond between the United States and Iceland,” said U.S. Navy Vice Adm. J. T. Anderson, U.S. 6th Fleet commander. “Northern Viking 2026 is a demonstration of our commitment to the collective defense of the North Atlantic. Together with our allies, we continue to create an environment that allows interoperability among NATO maritime forces so that European allies can take over primary responsibility for deterrence and defense in the European theater.”

Exercise Northern Viking 2026 is designed to strengthen interoperability and force readiness between the U.S., Iceland and other allied nations. The exercise enables critical multidomain command and control of joint and coalition forces defending Iceland and safeguarding the sea lines of communication within the waterways between Greenland, Iceland and the United Kingdom.

As a vital global shipping corridor, keeping this area secure is an imperative for transatlantic trade, commerce and security between North America and Europe.

“Together, we’re honing our warfighting skills and ensuring our ability to secure this critical region and to project decisive combat power wherever and whenever necessary,” said Air Force Gen Alexus G. Grynkewich, NATO supreme allied commander Europe and commander of U.S. European Command. “Throughout this exercise, and others, we will leverage the power of data in [artificial intelligence] enabled decision support tools, will integrate data streams in real time and ensure our command and control structures can make decisions at the speed of future conflict.”

The 1951 defense agreement was the foundation of a unique security framework designating the U.S. as responsible for Iceland’s defense in the absence of its own standing military. This treaty established a highly specialized and enduring defense presence in the region.

Over the last 75 years, this partnership has adapted from Cold War deterrence to modern multidomain defense operations, ensuring that the transatlantic bridge remains open and secure.