Lead: In an unprecedented rupture with its closest military partner, Spain has closed its airspace entirely to US aircraft involved in Operation Epic Fury, France and Italy have followed with their own restrictions, and the United Kingdom has declared “this is not our war” — together, they have exposed the deepest fracture inside the Western alliance in a generation.
How the Atlantic Rift Began
The transatlantic alliance crack did not appear overnight. For weeks before Spain made its historic airspace closure, Europe’s most outspoken governments had been signalling, carefully at first, that they would not march in lockstep with Washington into its war on Iran. The European Union’s collective reaction to Operation Epic Fury — the joint US-Israel military campaign launched on February 28, 2026 — has evolved from diplomatic caution into outright resistance, with implications that reach far beyond the immediate conflict.
Spain moved first and most forcefully. Prime Minister Pedro Sánchez had already declared in early March that the US would not be permitted to use the jointly operated military bases at Rota and Morón de la Frontera — two critical installations in Andalusia through which large volumes of US military traffic routinely flow to the Mediterranean and Middle East — for any activities linked to the Iran war. Sánchez called the conflict “illegal, reckless, and unjust” from the outset, positioning Spain as the loudest European critic of the US-Israel campaign and inviting a direct confrontation with Washington.
The confrontation duly arrived. President Trump threatened Spain with sweeping trade restrictions in response to Madrid’s refusal — a threat that prompted Spain to escalate rather than retreat. On March 29-30, 2026, Defence Minister Margarita Robles confirmed that Spain had extended its ban beyond the bases: all US military aircraft engaged in operations against Iran were now prohibited from entering Spanish airspace entirely. “We do not permit the use of military bases or airspace for actions linked to the war in Iran,” Robles told reporters. “Spain’s position is well understood and unequivocal.” She described the conflict as “deeply illegal and profoundly unjust”. The ban directly forced US aircraft stationed in the United Kingdom and France — still routing sorties toward the Middle East — to reroute around Spanish airspace, adding hours to transit times and straining US Air Force logistics.
France, Italy, and a Continent Choosing Sides
Spain’s move was not an isolated act of European defiance — it was the most visible expression of a much broader pattern. Three of Europe’s five largest NATO members have now placed concrete restrictions on US military operations linked to the Iran war.
France took what diplomatic sources described as an unprecedented step, refusing to allow its airspace to be used for transporting US weapons to Israel for operations against Iran. The French government stated the decision was consistent with policy held since the conflict’s start — but the acknowledgement that such a policy exists at all rattled Washington. Israel reacted strongly, threatening to suspend defence procurement contracts with French industry. The financial stakes for France’s defence sector are substantial: Israel was one of Thales and Dassault’s growing export markets.
Italy denied the US military permission to land at the Sigonella air base in Sicily — a facility built specifically to serve US Mediterranean operations — en route to the Middle East. Defence Minister Guido Crosetto attempted to soften the impact, describing the denial as “standard procedures requiring specific authorisation for operations beyond existing agreements,” but the practical effect was the same: a NATO founding member was blocking American access to a NATO facility for a US-led operation.
Germany occupies the most consequential position. Ramstein Air Base in Rhineland-Palatinate is the largest US military installation outside American territory and serves as the central logistics hub for US operations across Europe and into the Middle East. Berlin initially imposed no restrictions. However, debate intensified sharply after German President Frank-Walter Steinmeier made a striking statement suggesting the war on Iran “may be illegal under international law”. The political pressure on Chancellor Friedrich Merz to limit Ramstein’s role has grown week by week. Germany’s position — hosting the operation while expressing legal doubts about it — is diplomatically untenable and unlikely to survive the next major escalation.
The United Kingdom adopted a stance calibrated for maximum distance without formal breach: Prime Minister Keir Starmer told the House of Commons that the conflict was “not the UK’s war,” a formulation designed to insulate Britain from both American pressure for participation and European condemnation of complicity.
Hungary, Ukraine, and the Crisis Within Brussels
The Iran war has not merely divided Europe from the United States — it has intensified Europe’s pre-existing internal fractures, most visibly over the €90 billion Ukraine loan and the role of Hungary’s Prime Minister Viktor Orbán.
On March 31, 2026, EU High Representative Kaja Kallas travelled to Kyiv for an informal off-site meeting of the EU Foreign Affairs Council and announced that the EU was allocating Ukraine an additional €80 million generated from the proceeds of frozen Russian assets — a small but symbolically significant measure. More critically, she issued a direct warning to Budapest: if Orbán continues to veto the €90 billion loan for Ukraine, the EU will “reconsider using frozen Russian assets” as the primary financing mechanism — restoring the original “Plan A” that had been sidelined precisely to avoid the legal and diplomatic complications it entails.
The European Commission delivered a parallel signal on March 27, 2026: it froze Hungary’s access to its own rearmament loan under the new SAFE programme — the EU’s joint defence financing vehicle — citing Budapest’s blocking of Ukrainian aid as a violation of the principle of loyal cooperation among member states. An unnamed EU diplomat told Polish broadcaster RMF24 that the unofficial message was unambiguous: “It is difficult for the European Commission to agree to billions of euros for Viktor Orbán when he is violating the principle of loyal cooperation and blocking funds for a country at war with Russia”. Hungarian parliamentary elections are scheduled for April 2026, with polls showing the opposition cementing a lead — meaning Orbán may face domestic political pressure that ultimately forces a policy shift regardless of European pressure.
Editor’s Conclusions
The closing of Spanish airspace to American warplanes is not, at its core, a story about Spain. It is a story about the end of reflexive Atlanticism — the doctrine that European security interests and American strategic choices are automatically aligned and that European governments should follow Washington’s military lead without deliberation.
That doctrine was never absolute, but it survived Vietnam, Iraq, and Libya with the alliance structure intact. Operation Epic Fury appears to have broken something more fundamental. The difference between this moment and previous transatlantic fractures is structural: in 2003, France and Germany opposed the Iraq War but remained militarily passive. In 2026, Spain, France, and Italy are actively denying the US military access to physical infrastructure on European soil. That is a qualitatively different act. It implies independent legal analysis. It implies that European governments have assessed the war’s legality and found it wanting. And it implies that they are willing to absorb Trump’s threats of trade retaliation — threats that are not empty, given what the Liberation Day tariffs demonstrated — rather than comply.
The implications for NATO as a military alliance are severe and deserve honest assessment. NATO’s formal Article 5 mutual defence clause remains intact because no NATO member has attacked another. But the alliance’s operational cohesion — the trust, the logistics, the interoperability, the political will to act together — is eroding in real time. An alliance in which the United States operates from Germany’s Ramstein while Germany’s President calls the US operation potentially illegal is an alliance experiencing a crisis of legitimacy. It can survive this specific conflict. It cannot survive repeated iterations of it.
For Europe’s strategic future, the crisis offers a paradoxical opportunity. The EU’s accelerated defence spending — driven first by Ukraine and now by the Iran war’s oil shock, supply chain disruption, and alliance breakdown — is producing real capability increments. Poland is building the largest standing army in Europe. France and Germany have ratified the new European Defence Commitment. The SAFE rearmament programme, however contested, is mobilising capital into continental defence industry. The EU’s threat to reactivate frozen Russian assets if Hungary continues to block Ukraine aid is a sign of Brussels acting with strategic clarity rather than institutional inertia.
The core question is whether Europe’s strategic awakening is happening fast enough to provide an independent security foundation before the next major test arrives. Given that April 6 may bring a US strike on Iranian power infrastructure, and that the Houthis are escalating, and that the Strait of Hormuz remains closed, it is possible that the most consequential decisions in this crisis have not yet been made. European leaders had better be ready — because this time, Washington may not be waiting for them.
Executive Summary
- Spain, France, and Italy have all restricted or blocked US military access to their airspace and bases for Operation Epic Fury, marking the most concrete NATO alliance fracture since the 2003 Iraq War, as Germany debates and the UK declares “this is not our war”
- EU High Representative Kaja Kallas explicitly threatened on April 1 to use frozen Russian assets to fund Ukraine if Hungary’s Orbán continues to veto the €90 billion loan; the European Commission simultaneously froze Hungary’s own SAFE rearmament loan as leverage ahead of Hungary’s April 2026 elections
- The crisis is accelerating Europe’s strategic autonomy agenda: the EU is mobilising joint defence spending, the frozen Russian assets mechanism, and cross-border energy solidarity — but the window for decisive action is narrowing as the Iran war’s oil shock, the Hormuz closure, and Trump’s April 6 power grid strike deadline converge simultaneously
Sources
- The Guardian: Spain Closes Airspace to US Military Over Iran War — Published March 30, 2026 by The Guardian with direct quotation from Spain’s Defence Minister Margarita Robles; the most comprehensive English-language account of the airspace decision and its NATO implications
- Politics Today: Europe Pushes Back on US Military Operations as Iran War Divides Allies — Published April 1, 2026; the definitive cross-country comparison of France, Italy, Spain, Germany, and UK positions on military cooperation with the US in Operation Epic Fury, drawing on verified diplomatic sources
- Euronews / Reuters: Kallas Insists Russian Assets Are an Option If Orbán Doesn’t Lift Veto on Ukraine Loan — Published April 1, 2026; verified Euronews reporting from Kallas’s Kyiv visit, cross-referenced with Interfax Ukraine and RMF24 on the European Commission’s Hungary loan freeze as geopolitical leverage
