NATO will be a two-way street
In Brussels, US Defence Secretary Pete Hegseth delivered a conditional ultimatum to NATO allies: meet ambitious defence spending targets and grant American forces operational freedom, or accept a reduced US military presence on European soil. The warning reflects a deeper philosophical rupture within the Western alliance — a challenge to the long-held assumption that American commitment to European security is unconditional and permanent. At stake is not merely troop numbers, but the foundational compact of collective defence that has shaped the post-war order for eight decades.
- Hegseth labelled NATO allies 'free riders' and 'shameful' after most refused to allow US warplanes to strike Iranian targets from European bases, exposing a raw fracture in alliance trust.
- The Pentagon is actively reviewing plans to redeploy roughly a third of its fighter jets, refuelling aircraft, bombers, and drones from Europe — cuts that analysts warn could leave NATO's eastern flank dangerously exposed to Russia.
- The Trump administration is conditioning US military support on every NATO member reaching 3.5% GDP defence spending by 2035, turning a long-standing aspiration into a hard transactional demand.
- The pressure is already drawing blood domestically: the UK's previous defence secretary resigned after Prime Minister Starmer refused to commit to the spending level he believed necessary.
- European allies are scrambling for gestures of credibility — the UK announced £750 million in drone and missile aid for Ukraine — but no country has yet offered the structural spending commitments Washington is demanding.
- NATO Secretary General Mark Rutte endorsed Hegseth's bluntness as necessary honesty, but the alliance now navigates an era in which American commitment is no longer a given — it is a negotiation.
Pete Hegseth arrived in Brussels with an ultimatum dressed as a review. Speaking behind closed doors to European defence ministers, the US Defence Secretary announced a formal assessment of American troop and aircraft deployments across NATO — and made clear that countries failing to meet defence spending targets, or refusing to grant US forces operational latitude, should expect fewer American boots and jets on their soil.
His language was deliberately sharp. He called certain allies 'free riders' and condemned as 'shameful' the majority of European nations that had refused to allow American warplanes to strike Iranian targets from their bases during spring operations. The UK, through RAF Fairford, had said yes. Nearly everyone else had said no or buried the request in legal deliberation. Hegseth saw this as a fundamental failure of alliance solidarity. 'Iranian targets threaten European interests even more directly than they threaten us,' he said.
The structural demand is equally stark. The Trump administration wants all NATO members spending 3.5 percent of GDP on defence by 2035. The review will determine, in Hegseth's words, which countries 'pass with flying colours' and which do not — with the implicit consequence being a reduced American commitment. Analysts warn that the proposed redeployment of roughly a third of US fighters and support aircraft could weaken NATO's capacity to monitor Russian submarines and deter aggression along Europe's eastern flank.
The pressure is already reshaping domestic politics. The UK's previous defence secretary resigned after Prime Minister Starmer declined to commit to the spending level he considered necessary, settling instead for 2.7 percent by 2030. His replacement, Dan Jarvis, arrived in Brussels calling it 'a moment of challenge' but offered no new spending pledges. The UK later announced £750 million in drone and missile aid for Ukraine — financed through loans backed by seized Russian assets — a gesture of commitment that carefully avoids raising the overall defence budget.
Hegseth told Jarvis directly that it was unacceptable for allies to stand 'at the end of a runway with a clipboard to decide what flies' — a vivid encapsulation of Washington's frustration with European nations that seek the protection of American power while constraining its use. NATO Secretary General Mark Rutte endorsed the bluntness as necessary. But the alliance now faces a question it has not seriously confronted since its founding: what happens when the guarantee is no longer unconditional?
Pete Hegseth walked into a room full of European defence ministers in Brussels with a simple message: pay up, or the United States will start packing up. The American defence secretary delivered his ultimatum behind closed doors at a NATO gathering, but the Pentagon made sure the world heard it anyway. He announced a formal review of how many American troops and aircraft Europe gets to keep, and he was blunt about the conditions attached. Countries that don't meet their defence spending targets—or that won't let US jets use their airbases—should expect to see fewer American forces on their soil.
Hegseth's language was sharp. He called some allies "free riders" and others "shameful" for refusing to allow American warplanes to strike Iranian targets from European bases during operations in the spring. The UK's new defence secretary, Dan Jarvis, sat in that room and heard it directly. Most of Europe had said no to those bombing runs. The UK, through RAF Fairford in Gloucestershire, had said yes. Everyone else had either refused or tied the request up in legal questions. Hegseth saw this as a betrayal. "Iranian targets threaten European interests even more directly than they threaten us," he said, "but too many of our allies said no."
The Trump administration is pushing Europe toward a fundamental shift in how NATO operates. The goal is clear: Europe should defend itself. The administration wants every NATO member to spend 3.5 percent of their GDP on defence by 2035. All members except Spain agreed to this target in principle at last year's summit in The Hague. But Hegseth's announcement signals that American patience is wearing thin. He said the US review would determine which countries "pass with flying colours" and which ones fail. The implication was unmistakable: failure could mean fewer American soldiers, fewer jets, fewer reasons to count on the US commitment.
The cuts being considered are substantial. The Pentagon is looking at redeploying roughly a third of the 150 F-16 and F-15 fighters assigned to NATO, along with refuelling planes, reconnaissance aircraft, bombers, and drones. Military analysts worry this could weaken NATO's ability to track Russian submarines in European waters and reduce the alliance's overall deterrent effect against Moscow. The timing matters. Russia remains a threat. Europe's eastern flank is nervous. And now the alliance's most powerful member is signalling it might pull back.
Hegseth framed this as leverage, not abandonment. "NATO will be a two-way street," he said. American military support would become conditional on European spending. The Pentagon briefed out his remarks to ensure the pressure stuck. Mark Rutte, NATO's secretary general and a former Dutch prime minister with a good relationship with Trump, called this approach necessary. "We need to speak the truth to each other," Rutte said, endorsing Hegseth's bluntness even as it rattled the room.
The pressure is already having effects. John Healey, the UK's previous defence secretary, had just resigned after Prime Minister Keir Starmer refused to commit to the 3 percent spending target Healey wanted. Starmer would only promise 2.7 percent by 2030. Healey saw that as insufficient. His departure was a sign of how seriously some European leaders take these demands. Jarvis, his replacement, arrived at the Brussels meeting calling it "a moment of challenge" but offered nothing new on spending. Later, the UK announced it would spend £750 million on drones and air defence missiles for Ukraine, funded through loans backed by seized Russian central bank assets—a way of showing commitment without raising the overall defence budget.
Hegseth's message to Jarvis was personal and pointed. He told him it was unacceptable for NATO allies to stand "at the end of a runway with a clipboard to decide what flies." That image captured the frustration: European countries, in his view, were dictating terms to American military operations on their own soil. They wanted the security umbrella but not the responsibility. They wanted to be defended but not to participate in the defence of others. The spring bombing campaign against Iran had exposed this tension. The US wanted to act. Europe wanted to debate.
What happens next depends on whether Europe takes the threat seriously. The review is real. The cuts are being planned. And the Trump administration has shown it is willing to use military commitments as leverage in negotiations. NATO has held together through the Cold War and beyond by assuming American commitment was permanent. That assumption is now being tested. Hegseth's Brussels address was not a negotiation. It was a warning.
Notable Quotes
NATO will be a two-way street, with American military support conditional on countries meeting their defence spending targets— Pete Hegseth, US Defence Secretary
We need to speak the truth to each other, and I'm happy he does this because the pressure is necessary— Mark Rutte, NATO Secretary General
The Hearth Conversation Another angle on the story
Why does it matter whether European countries let American jets bomb Iran? That seems like a separate issue from NATO's core mission.
Because it reveals the underlying tension. The US sees itself defending Europe's interests, including against threats in the Middle East. When Europe refuses to participate or even allow the infrastructure, the US sees that as freeloading—taking the security benefit without sharing the burden.
But couldn't a European country have legitimate legal or political reasons to say no?
Absolutely. And that's what some countries did—they raised legal questions, consulted their parliaments, thought about the consequences. Hegseth called that "shameful." He's saying those deliberations are excuses, not reasons.
So this review of military presence—is that a real threat or political theatre?
It's both. The Pentagon is actually planning redeployments. A third of the fighter jets could move. But the announcement itself is also meant to scare Europe into spending more. The threat is real; the timing of the announcement is strategic.
What happens if a country like Germany or France doesn't meet the spending target?
That's the open question. Hegseth said some countries will "fail" the review. He implied forces could be withdrawn. But actually pulling out American troops from a major ally would be a massive geopolitical move. The threat might be more powerful than the follow-through.
And if Europe does spend more—does that solve the problem?
It might ease the immediate pressure. But the deeper issue is that the US is signalling it won't automatically defend Europe anymore. That changes the entire security architecture. Europe has to believe it's on its own now.