Keep On Dreaming?: The Security Guarantee Europe Can No Longer Take for Granted
Rutte’s nuclear candour, Macron’s forward deterrence, and a continent sleepwalking through an inflection point
When NATO Secretary-General Mark Rutte stood before the European Parliament on 26 January and told lawmakers to “keep on dreaming” if they believed Europe could defend itself without the United States, he broke an unwritten rule of transatlantic diplomacy. You do not tell your allies, in public, that they are delusional. But Rutte was not being rude. He was being honest. And honesty, in European defence circles, has become a dangerously scarce commodity.
For seven decades, the US nuclear umbrella has been Europe’s ultimate guarantee against existential threat — held largely cost-free by allied governments from Tallinn to Lisbon. The premium appeared trivial: a modest slice of GDP on conventional forces, some diplomatic courtesies, the occasional deployment to a distant theatre. European leaders treated this arrangement not as a contingent commitment that could be withdrawn but as a structural feature of the international order, as permanent as the North Atlantic itself. This was always a misreading. Security guarantees are not geological formations. They are political choices, renewed or abandoned by each successive administration. And the current administration in Washington has made its preferences startlingly clear.
Rutte’s arithmetic laid it bare. Without the United States, Europe would need to spend not 5 per cent of GDP on defence but closer to 10 — and would still need to build an independent nuclear capability costing hundreds of billions of euros. The Hague Pledge of 5 per cent, already treated as ambitious by most European treasuries, is itself premised on the Americans remaining in the game. Strip that premise away, and the fiscal foundations of European defence do not merely crack. They disintegrate. No European treasury has published a credible roadmap for even approaching 10 per cent of GDP, let alone sustaining it across electoral cycles.
The events of late February and March 2026 have turned Rutte’s hypothetical into observable reality. Operation Epic Fury — the joint US–Israeli campaign against Iran launched on 28 February — has consumed Washington’s strategic attention, munitions, and credibility in ways that vindicate every anxiety the NATO chief articulated. Over $16 billion spent in the first twelve days, according to the Center for Strategic and International Studies. The Foreign Policy Research Institute calculates that some 5,200 munitions were expended in the first 96 hours — the most intensive opening air campaign in modern history — with Patriot interceptors consumed at a rate that exhausted 18 months of production capacity in under four........
