Transatlantic Fault Lines: Washington's Warning Against European Defense Autonomy

The transatlantic defense relations are undergoing a phase of substantial realignment, which became evident on February 20, 2026, through a sharp diplomatic intervention by the U.S. Ambassador to the European Union. Andrew Razder explicitly warned Europe in a Bloomberg interview against the introduction of protectionist "Buy European" regulations in the defense industry, labeling such measures as a "serious mistake." This warning came just four days after British Prime Minister Keir Starmer called for European defense autonomy at the Munich Security Conference—a clash of two visions that reveals the fundamental tensions in the transatlantic security framework.

The immediate controversy was sparked by a proposal from French President Emmanuel Macron, who has been advocating for "strategic autonomy" for Europe for years. Macron's initiative aims to establish procurement rules that would favor European defense manufacturers in contracts within the EU. Razder's counterargument focuses on two central points: the already existing deep integration of American and European defense industrial bases and the critical necessity of interoperability of weapon systems among NATO allies. The U.S. diplomat referred to existing trade agreements made in Scotland, arguing that protectionist measures would contradict both the letter and the spirit of these agreements.

The depth of industrial interconnection that Razder refers to is indeed considerable. American defense companies like Lockheed Martin, Raytheon, and Northrop Grumman maintain substantial production and development capacities in several European countries. The F-35 program, for example, integrates suppliers from nine European NATO states, while European companies like Airbus Defence and Space, Leonardo, and MBDA, in turn, supply components to American platforms. This symbiotic relationship has created a highly complex ecosystem over decades, the dissolution or fragmentation of which would bring significant efficiency and cost disadvantages.

Nevertheless, Razder's intervention also reveals a growing American nervousness towards European autonomy aspirations. This nervousness is not unfounded: the European defense industry has made significant strides towards consolidation and independence in recent years. The Permanent Structured Cooperation (PESCO), the European Defence Fund with a budget of 8 billion euros for 2021-2027, and joint armament projects like the Future Combat Air System (FCAS) between France, Germany, and Spain, or the Main Ground Combat System tank signal a trend towards reducing dependence on American technology.

Starmer's positioning at the Munich Security Conference adds an additional dimension to this dynamic. His statement that Europe must "stand on its own feet" and cannot rely on the military protection of the U.S. within NATO marks a remarkable shift for Britain, traditionally the closest European ally of Washington. This rhetoric reflects the changed security priorities of the Trump administration, which increasingly pressures European defense ministers to expand their combat capabilities and take the lead in protecting the continent from the Russian threat. Elbridge Colby, U.S. Under Secretary of Defense, had reiterated this demand just on February 12 at a NATO meeting in Brussels.

Starmer's announcement that Britain must "move faster" on defense spending is concretized in plans to increase the defense budget to 3% of GDP by 2029—significantly earlier than originally planned. British defense spending was at 2.4% of GDP in 2025 and was previously scheduled to rise to 3.5% only by 2035. An acceleration to 3% by 2029 would require an additional 13-14 billion pounds in the fiscal year 2029-30, according to the Institute for Fiscal Studies. These figures illustrate the magnitude of the financial commitments that European governments would need to undertake to actually realize the demanded autonomy.

The fundamental tension expressed in this controversy lies in the incompatibility of two strategic imperatives. On one hand, the increasing unpredictability of American security guarantees—exacerbated by the Trump administration—necessitates that Europe must be enabled to ensure its own defense. The Russian threat, as articulated by Air Chief Marshal Sir Richard Knighton and his German counterpart General Carsten Breuer on February 15 in the Guardian, will persist even after a potential end to hostilities in Ukraine. "Moscow's military buildup, combined with its willingness to wage war on our continent, as painfully evident in Ukraine, poses an increased risk that requires our collective attention," the two military leaders wrote.

On the other hand, a radical decoupling of the European from the American defense industrial base would weaken, not strengthen, Europe's military capability in the short term. The technological superiority of American weapon systems in areas such as combat aircraft, precision munitions, missile defense, and intelligence remains considerable. Developing European equivalents would take decades and require investments in the hundreds of billions—resources that most European states do not have available given strained public budgets.

The solution to this dilemma requires a nuanced approach that reconciles Razder's legitimate concerns regarding interoperability and industrial efficiency with the legitimate European need for strategic agency. "Buy European" clauses do not necessarily have to mean absolute exclusions; instead, they could be designed as preference arrangements that favor European providers when performance and price are comparable, while critical capability gaps could still be filled by American systems. At the same time, Washington would need to accept that European autonomy aspirations are not primarily directed against American interests but represent a rational response to a changed geopolitical reality.

The coming months will show whether the transatlantic partners are able to find such a compromise. The defense spending of Britain, Germany, and other European NATO states will serve as a barometer of political will. Equally crucial will be whether the European Commission can find a way in formulating procurement policies that strengthens European industries without jeopardizing NATO interoperability. The diplomatic sharpness of Razder's warning suggests that Washington will see little room for protectionist unilateral actions—but the European determination, as expressed in Starmer's Munich speech, signals that the era of unconditional European dependence on American military power is definitively coming to an end.