Europe's New Defense Architecture: Between Atlantic Partnership and Strategic Autonomy

Four years after the start of the Russian war of aggression against Ukraine, a fundamental shift in defense policy is taking place in Europe. The recent developments at the Munich Security Conference in February 2026 mark a turning point in transatlantic relations and signal a new era of European responsibility in defense matters.

Perhaps the most notable shift comes from Washington itself. Elbridge Colby, the U.S. Deputy Secretary of Defense for Policy, announced at a side event of the Munich Security Conference on February 13 a fundamental change in the American stance towards European defense spending. "When countries spend 3.5% or 5% on defense, we understand that you need to indigenize a large part of that production," Colby explained. This statement marks a clear departure from decades of U.S. skepticism towards European policies that favor domestic arms manufacturers.

The new American doctrine is based on the concept of "partnerships, not dependencies." Washington signals that Europe should bear the main burden for its conventional defense, while the U.S. maintains its nuclear deterrence and contributes conventional capabilities to NATO defense in a "more limited and focused manner." This realignment reflects not only a strategic shift in U.S. priorities away from Europe but also the reality that the demand for defense equipment is "enormous" and will remain sustainable.

The European response to this challenge is remarkably robust. According to data from the European Union, EU member states are expected to spend 381 billion euros on defense in 2025—a 63% increase compared to five years earlier. These massive investments are underpinned by the new spending target architecture agreed upon at the NATO summit in The Hague: by 2035, all alliance partners are to spend 5% of their gross domestic product on defense, of which 3.5% is for "core defense."

The Finnish perspective, articulated by President Alexander Stubb in Munich, embodies the new Nordic attitude: "If NATO defense spending rises to 5% when America asks us to take more responsibility for our own defense, I, as a Finn, am actually quite satisfied with that." Stubb explicitly positions Finland as a "security provider rather than a security consumer"—a stance that reflects the Russian threat on Europe's eastern flank.

However, European unity on this issue is not complete. Spain remains the only NATO member to reject the 5% target. Prime Minister Pedro Sánchez argued in Munich that this level of spending would "at the end of the day" make Europe more dependent on the U.S. defense industry. Danish Prime Minister Mette Frederiksen countered with the demand to reach the 3.5% target by 2030 instead of 2035—"and perhaps it will not be enough."

The European defense industry is experiencing a renaissance. The European Union has responded with a 150 billion euro loan program for joint defense procurement, which requires at least 65% of component costs to come from Europe, Canada, or Ukraine. This industrial policy component is now accepted by Washington. "If there are going to be large fiscal movements, we understand that some of that will go through the European Union," Colby said. "We will work with that."

Support for Ukraine demonstrates Europe's new ability for strategic independence. According to the Kiel Institute for the World Economy, loans and grants from EU institutions accounted for nearly 90% of financial and humanitarian flows in 2025. A handful of European countries—particularly Germany, the United Kingdom, and the Nordic states—provided about 95% of military aid. A recently agreed EU loan agreement of 90 billion euros effectively finances the Ukrainian state, along with other funds, until 2027.

This massive European commitment to Ukraine reflects a fundamental strategic realization: Most Europeans have recognized the Ukrainian defense war as Europe's own war. Should Putin succeed in conquering Ukraine, he might be tempted to continue and dismantle the entire European security structure. However, if Ukraine survives as an independent and sovereign nation, it would significantly restrict Putin's strategic options.

The debate over a "European way of war" is gaining substance. While conventional wisdom holds that Europe cannot defend itself without the U.S.—due to dependence on American nuclear deterrence, air and missile defense, and reconnaissance capabilities—some experts are now questioning whether Europe actually needs all of this for a viable self-defense strategy. Ukraine has demonstrated that modern conflicts are "wars of production" that require a robust defense industry.

The Nordic and Baltic states are particularly vigorously driving this transformation. Denmark is pushing for NATO capability goals to better reflect the Arctic and the High North. Many of the capabilities needed for this region have not yet been produced, and production lines in the U.S. and Europe "do not really respond to the needs we have," said Danish Prime Minister Frederiksen.

The strategic reality is that Europe is on the brink of transformation a decade later. Defense spending is rising, armies are recruiting, and more military equipment is being produced "Made in Europe." Washington is now explicitly supporting the growth of the European defense industrial base. "This will put us on a long-term trajectory," Colby said. "We are confident that this will be the recipe for stability, but also for deterrence and defense."

The question is no longer whether Europe needs to do more for its defense, but how quickly and effectively this transformation can be accomplished. The coming years will show whether European unity and determination are sufficient to achieve the ambitious goals and create a credible European defense architecture—one that remains partnership-oriented with the U.S. while also being able to act increasingly independently.