Pentagon review explores penalties for Britain, Spain over Iran war support

A leaked Pentagon email turned a dispute over access rights for the Iran war into something far bigger: a test of whether Washington is willing to use NATO itself, and a territorial dispute in the South Atlantic, as leverage against two close allies.

The internal note, prepared by Elbridge Colby, the Pentagon’s top policy adviser, outlined options that included suspending Spain from NATO and reviewing the U.S. position on Britain’s claim to the Falkland Islands. A U.S. official said the proposals reflected frustration over allies’ reluctance to grant the United States access, basing and overflight rights for operations tied to the Iran war. The same official said the point was to push back against what Washington saw as a European “sense of entitlement.”

The review matters because the penalties under discussion would have gone well beyond symbolism. Any move to question NATO access would cut straight into the alliance’s practical machinery, where basing, transit and intelligence sharing are the daily currency of military cooperation. A review of Washington’s position on the Falklands would also reopen a long-running sovereignty dispute that has already been settled, for now, by force of political will and local consent rather than by international consensus.

Spain and Britain moved quickly to reject the reported plans. Pedro Sánchez said Spain was a “loyal partner” of NATO and said he relied only on official documents and government positions. The British government said the sovereignty of the Falkland Islands was unchanged and remained with Britain. NATO officials said the treaty does not foresee suspension or expulsion, underscoring how far the reported options stretched against the alliance’s legal structure.

The Falklands issue carries unusually heavy history. Islanders voted almost unanimously in a 2013 referendum to remain under British rule, while Argentina continues to claim the islands. That makes any hint of U.S. pressure through the territory especially combustible, because it touches both a live sovereignty dispute and Britain’s post-imperial identity.

Taken together, the email suggested more than a passing diplomatic spat. It pointed to a harder-edged model of alliance management, one in which Washington could use formal and informal penalties to enforce alignment over war planning. For NATO, that is the deeper stress test: whether the alliance remains a system of shared commitments, or becomes a tool that can be turned coercive when partners refuse support.