When Denmark voted on June 1, 2022, to abolish its EU defense opt-out, it wasn’t just a technical adjustment to Brussels paperwork.
It was a decision, made at the ballot box in the shadow of Russia’s invasion of Ukraine, that Denmark could no longer afford to sit outside Europe’s defense architecture.
Four years later, that choice has produced one of the more consequential defense partnerships in Danish foreign policy: a deepening alignment with France.
A Partnership Sealed at the Highest Level
The Franco-Danish relationship has developed over the long term, and letter of intent between the two countries’ defense ministers in 2014 set the direction long before Ukraine made it urgent.
But it took King Frederik X’s state visit to Paris in April 2025 to turn quiet cooperation into a formal strategic partnership, one covering not just defense, but health, energy transition, and culture.
That a reigning Danish monarch’s visit produced a defense pact is itself a signal of how seriously Copenhagen now treats the alliance.
On procurement, Copenhagen backed that partnership with a concrete decision: choosing the Franco-Italian SAMP/T-NG air defense system, paired with an agreement to acquire French Mistral surface-to-air missiles.
Reciprocal Solidarity, Tested in Greenland
As American pressure over Greenland intensified, Denmark didn’t wait for reassurance, it invited it.
Copenhagen convened the “Arctic Endurance” exercise in January 2026, bringing France, Germany, Norway, and Sweden into a joint deployment that put French Alpine troops on the ground in Nuuk alongside their European counterparts.
It’s a small detachment in military terms. But symbolically, it’s Denmark demonstrating that when Washington applies pressure over Greenlandic sovereignty, Copenhagen has European allies willing to show up.
France was one participant among several, not a lone guarantor, but its presence in the Arctic underlines that the Franco-Danish relationship isn’t confined to Paris and Copenhagen; it extends to the territory Denmark cares about most right now.
The solidarity runs both ways. Denmark brings real assets to the table too: a maritime and space-technology industrial base that complements French capabilities, and a long record of backing French forces in the Sahel.
Greenland’s capital Nuuk, in the spotlight following Trump’s threats. Photo: Mads Claus Rasmussen/Ritzau Scanpix via AFP
The Frigate Contract: The Next Real Test
Words and joint exercises are one thing. What happens next is the harder test, and it’s playing out in Danish shipyards and procurement offices right now.
French shipbuilder Naval Group is bidding for one of the largest defense contracts in Danish history: a frigate program worth roughly one billion euros, pitting the French FDI design against strong competition from South Korea.
This isn’t a symbolic contest. It will decide who builds part of Denmark’s future naval capability, what industrial cooperation and technology transfer Danish shipbuilders get out of the deal, and whether the partnership sealed in Paris in 2025 translates into decades of shared capability or stays a diplomatic gesture.
The Bigger Picture
Since 2022, Denmark has moved from EU defense outsider to one of France’s more active European partners through joint procurement, Arctic solidarity, and now a major industrial competition that will test whether the relationship has staying power.
It now rests on concrete commitments rather than mere declarations of intent — a foundation that, beyond short-term contingencies, outlines the contours of a lasting strategic partnership between the two countries.
A communications specialist, Daniel Thomass has worked as a consultant for many years, both as a freelancer and within various communications agencies, notably working to promote the European defense industry.