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Trump's grievance with UK over Iran conflict emboldens Argentina's Milei to revive Falklands claim

Confirmed1 source · Sep 5, 2026

The U.S. president signaled reconsideration of America's neutral stance on the Falkland Islands after Britain declined to support military action against Iran, prompting Argentina's leader to announce plans to reopen his country's sovereignty claim.

Trump's grievance with UK over Iran conflict emboldens Argentina's Milei to revive Falklands claim
Image via The Guardian

What happened

On Thursday, Argentinian President Javier Milei announced his intention to reopen Argentina's claim to the Falkland Islands (known in Argentina as the Malvinas) in a televised address. Milei's move followed Trump's statement that he was "reviewing" the U.S. longstanding neutral position on the islands' sovereignty. Trump attributed his shift in stance to frustration that Britain—under Prime Minister Keir Starmer—declined to support his decision to go to war against Iran, stating in an interview with GB News: "Your country was not there to help me." The islands have been the subject of a centuries-old sovereignty dispute; Argentina invaded them in 1982, triggering a brief military conflict with Britain, after which Britain retained control. Argentina, which returned to democracy in 1983, has never formally renounced its claim, despite the fewer than 2,000 inhabitants insisting they remain British.

Context

Trump has framed his second term around retribution against allies he believes failed to support him, targeting numerous countries including South Korea, Germany, Spain, and Italy for declining to join military action against Iran or meet defense spending targets. Milei, a self-styled "anarcho-capitalist" who attended Trump's 2025 inauguration and has previously received $20 billion in U.S. loan guarantees, appears positioned to exploit Trump's hostility toward Britain. The reconsideration of U.S. neutrality on the Falklands threatens a fragile peace that has held since 1982 and could affect broader U.S.-UK relations, traditionally described as the "special relationship." Trump's apparent willingness to leverage the Falklands dispute may also serve as a bargaining tool to pressure Britain—whose chancellor John Healey recently suggested it may not reach increased defense spending targets—into higher NATO contributions and military expenditures.