The Trump administration is putting its money where its mouth is: spend more on defence, or lose American troops. US Defence Secretary Pete Hegseth delivered that ultimatum to Nato allies at a Brussels defence ministers meeting, signalling that military aid is no longer a one-way street.
Hegseth announced a sweeping review of US military presence across Europe, making clear that troop numbers and aircraft deployments will hinge directly on whether countries meet their defence spending targets. He told allies that future US Nato contributions will be contingent on reciprocal spending, turning what was once a collective security blanket into a transaction.
The review could result in significant cuts. Under consideration is a redeployment of roughly one-third of the 150 F-16 and F-15 jets assigned to Nato, along with refuelling and reconnaissance aircraft, bombers, and drones. Military analysts warn that such withdrawals could hobble Nato's ability to track Russian submarines in European waters and undermine the alliance's broader deterrence against Moscow.
Some countries will pass this test. Others won't. That's how Hegseth framed it to fellow defence ministers, in remarks that were shared with reporters by the Pentagon itself, a calculated leak designed to intensify pressure on European governments to open their wallets. The Trump administration wants European members to lead their own defence against Russia and to lift spending to 3.5 per cent of GDP by 2035. All members except Spain have agreed in principle.
The confrontation extends beyond budget figures. Hegseth also scolded Europe for refusing to participate in US bombing campaigns against Iran. When the Trump administration wanted to strike Iranian targets this spring, most European nations blocked US jets from flying over their territory or using their bases for refuelling and strikes. The UK was an exception, allowing missions from RAF Fairford in Gloucestershire, but the rest pushed back.
That resistance became a flashpoint for Hegseth. He told defence ministers, including Britain's newly appointed Dan Jarvis, that it was unacceptable for allies to stand at runway edges with clipboards, dictating which US operations they would permit. He branded the behaviour shameful. European nations, he argued, face Iranian threats more directly than America does, yet refused to act when the US offered to do the heavy lifting.
Mark Rutte, Nato's secretary general, offered cautious support for Hegseth's combative tone. The former Dutch prime minister said the blunt talk was necessary, that allies need to speak truth to each other. Rutte, who enjoys a warm relationship with Donald Trump, appeared willing to tolerate the pressure campaign if it yields higher defence budgets.
The British position highlights the tension. John Healey stepped down as UK defence secretary last week after Prime Minister Keir Starmer refused to commit to raising military spending beyond 2.7 per cent of GDP by 2030. Healey had pushed for 3 per cent as a stepping stone to the 3.5 per cent target. His successor, Jarvis, offered only vague language about challenges ahead and made no new spending commitments during the Brussels summit, though the UK did announce 750 million pounds in loans to Ukraine for drones and air defence systems.
The underlying message is unmistakable: the post-Cold War era of American military dominance bankrolling European security is over. The Trump administration believes Europe has coasted too long on US strength and resources. That view is now being enforced through the threat of withdrawal, base closures, and force reductions. Whether Europe responds with higher budgets or with resentment remains to be seen.
Author James Rodriguez: "Hegseth's ultimatum signals a genuine break from decades of American security guarantees, but Europe's slow response to budget demands suggests the alliance may be heading toward real fractures, not just rhetorical tension."
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