NATO's Iran War Problem: Allies Feel the Costs, Not the Say

Alliances are usually tested by disagreement over goals. NATO's test in 2026 has been different and, in some ways, more corrosive: broad agreement on the destination — a non-nuclear Iran, open sea lanes, regional stability — paired with deep division over who gets to decide the means of getting there, and who bears the costs along the way.

Consulted after the fact, not before

European governments were not consulted before the war began, and have spent the months since absorbing consequences they didn't help shape: soaring gas prices from the Strait of Hormuz closure, renewed inflation concerns across the continent, and pressure to support a military campaign whose objectives were set unilaterally in Washington. The Jacques Delors Institute has gone so far as to build a public tracker cataloguing every national measure EU governments have implemented just to manage the war's energy fallout — a level of institutional response usually reserved for crises the bloc itself declared, not ones it was handed.

The bases were available. The airspace wasn't always

NATO Secretary General Mark Rutte has said that ally after ally made their bases available to US forces during the war, and that beyond isolated cases, European allies helped with logistics throughout. That's true, but it understates the friction underneath it: domestic political skepticism has driven some European governments to unilaterally close their airspace, deny US aircraft landing rights, or restrict the use of jointly operated air bases — a pattern of selective cooperation that reflects genuine ambivalence rather than unified alliance solidarity.

Trump's coalition effort collapsed quickly

The clearest evidence of strain came when Trump attempted to assemble an international force to help police the Strait of Hormuz. The effort fell apart almost as soon as it started, and the president responded by publicly directing his frustration at the European allies who'd declined to follow his lead — a dynamic that inverted the usual script, where the US typically leads coalition-building and allies debate how much to contribute, rather than allies collectively declining to participate at all.

Why this matters beyond the current war

I think the deeper story here isn't really about Iran specifically. It's about what happens to an alliance's cohesion when one member can commit the others to real economic and strategic costs without a meaningful consultative process first. Europe remains exposed through inflation, energy prices, alliance obligations, and financial instability, while exercising comparatively little strategic control over the decisions generating those costs. That imbalance — bearing consequences without proportional input — is exactly the kind of structural grievance that erodes alliance cohesion slowly, well after any single war has ended, and it's a dynamic NATO will have to reckon with regardless of how the current conflict with Iran ultimately resolves.