The numbers involved in Europe’s rearmament are large enough that they require some translation before they land properly.
EU member states’ combined defence budgets stood at €218 billion in 2021. By 2025, that figure had risen to an estimated €381 billion. By 2029, if current trajectories hold, it will reach somewhere around €520 billion annually. The ReArm Europe Plan that the European Commission unveiled in March 2025 was designed to accelerate all of this — to make it faster, larger, and more coordinated than national governments would manage on their own. The headline figure of €800 billion is what the Commission says the plan could “unlock” in total additional defence spending through 2030. It is the kind of number that sounds like a single fund but isn’t: it is an arithmetic estimate of everything that would flow from a set of interlocking policy changes, assuming they all work as designed.
Whether they will is not yet established. Whether they should is a question that is starting to get asked more loudly in places where it was previously considered impolitic to raise it.
How the machine is built
The €800 billion figure rests on three main pillars, and understanding the difference between them matters.
The largest component — potentially €650 billion over four years — comes not from new EU spending but from suspending the deficit rules that normally constrain what member states can borrow. The EU’s Stability and Growth Pact requires governments to keep deficits below 3% of GDP and debt below 60% of GDP. Under the ReArm Europe Plan, member states can request activation of a “national escape clause” that temporarily exempts defence spending from those limits, up to an additional 1.5% of GDP per year, for four years. As of February 2026, seventeen member states had requested activation. That is seventeen governments simultaneously expanding their fiscal space for defence procurement, each on its own national balance sheet, each adding to national debt that will eventually need servicing.
The second pillar is SAFE — the Security Action for Europe instrument, a €150 billion loan facility adopted by the Council in May 2025. SAFE borrows on capital markets and lends to member states at competitive rates with a ten-year grace period before repayment begins. By April 2026, the Council had approved national defence investment plans for 18 member states, green-lighting disbursements. Poland leads with €43.7 billion. Romania has committed €16.7 billion — significant for a country whose entire GDP is around €300 billion. Italy has taken €14.9 billion, mostly directed toward naval modernisation and air defence. Of the 19 national plans submitted, 15 include projects involving Ukraine’s defence industry. Germany, notably, did not apply for SAFE funding: Berlin has its own access to capital markets and its own €100 billion special defence fund, reformed after the constitutional brake on debt was loosened in 2025.
The third pillar is a set of regulatory changes — the Defence Readiness Omnibus, adopted by the Commission in June 2025 — that simplify procurement rules, allow civilian EU budget programmes like Horizon Europe to fund dual-use and defence-related research for the first time, and expand the European Investment Bank’s lending mandate to cover defence projects. The EIB plans to allocate roughly €3.5 billion to security and defence in 2025, roughly double its previous allocation.
Taken together, this is the most extensive EU-level defence financing architecture ever constructed. The first Commissioner for Defence and Space was appointed when the second von der Leyen Commission took office. The European Parliament’s subcommittee on security and defence was elevated to a full standing committee. The institutional shift is real and probably durable.
The spending is already happening
It is worth being specific about where the money is going, because the sums are no longer theoretical.
Germany’s defence budget is projected to reach €117.2 billion in 2026, rising to €162 billion by 2029, or 3.2% of GDP. France raised its 2026 defence allocation to €68.5 billion, about 2.25% of GDP, even as it faces a wider fiscal deficit. Poland is spending 4.48% of GDP on defence — more than any other EU member state in relative terms, and more than the United States as a share of national output. Lithuania is at 4.0%, Latvia at 3.73%, Estonia at 3.38%, with Tallinn pledging to reach at least 5.0% from 2026. The Netherlands has more than doubled its defence budget since 2021, reaching €25.8 billion in 2025. Denmark established a DKK50 billion acceleration fund. Finland, which shares a 1,340-kilometre border with Russia, plans to reach 3% of GDP by 2029.
These are not aspirations. The money is being committed, and in several cases already being spent. The EU-27 collectively surpassed the 2% of GDP NATO threshold for the first time in 2025. The NATO summit in The Hague in 2025 set a new target of 3.5% of GDP for core defence needs by 2035, with a broader 5% goal including defence-adjacent spending. Europe is, in practical terms, engaged in the largest peacetime military buildup in a generation.
The question being deferred
Here is what the official documents do not quite say: where, in the end, the money comes from.
The escape clause mechanism does not create new resources. It creates new borrowing capacity. The SAFE loans are not grants; they are debts, with ten-year grace periods on repayment, to be serviced by the member states that took them — states like Romania, which already carries significant fiscal pressure, or states like France, which has been navigating its own deficit difficulties for years. The Defence Readiness Omnibus redirects civilian programme budgets toward dual-use purposes: money originally allocated to research, regional development, or digital infrastructure is now eligible for defence-related applications. That is not a free lunch. It is a reallocation.
The political framing that has dominated much of the debate — that Europe is finally paying for its own defence after decades of free-riding on American security guarantees — is accurate as far as it goes. European governments did, in the post-Cold War era, run down their defence capabilities while expanding welfare states, and are now paying to rebuild what was allowed to atrophy. But that framing elides the question of which Europeans bear the cost of the rebuilding, and through what mechanism.
The IMF flagged this in April. Polish Finance Minister Andrzej Domański told CNBC that his government was “really closely” monitoring the prospect of social unrest at the ballot box, adding that Poland’s 5% of GDP defence target is “a lot.” In Germany, a public protest in Halle in March 2026 against city budget cuts carried a banner that translated roughly as “We’re not out of the woods yet” — a gathering of people from culture, sport, youth work and social services who had watched local authority funding tighten while national defence spending expanded. The European Union Institute for Security Studies noted that the Iran conflict is set to complicate the bloc’s rearmament further, squeezing defence production capacity and supply chains while simultaneously demanding more of them.
The Centre for European Reform published a policy brief in March that tried to map public attitudes toward this trade-off. Its conclusion: the “guns versus butter” framing, while crude, reflects a real tension that “difficult trade-offs will require” addressing, and that “how the public may react to these is not well explored.” Government budgets and GDP across European NATO countries are 1.9 times larger now in real terms than they were in 1990. But welfare spending has been on a structural upward trend because of ageing populations and rising health costs, and those pressures do not pause for geopolitical emergencies.
Guns and butter: what the historical record says
The standard political argument assumes a direct and permanent trade-off: that rearmament means welfare cuts, and welfare cuts mean electoral punishment. The historical record is more ambiguous.
Research published in February 2026 by the Centre for Economic Policy Research, drawing on a Global Budget Database covering 20 countries from 1870 to 2022 and 114 episodes of military spending expansion, found “little evidence that social spending is cut during military buildups.” In peacetime buildups, governments tend to finance higher defence through a combination of debt and higher taxes; in wartime, primarily through debt. Social spending, on this long view, tends to be protected — but the state becomes larger overall, and the fiscal legacy of a major buildup can take decades to fully absorb.
The more pointed question, as analysts at Shahin Vallée and Joseph de Weck argued in the Guardian last year, is not guns or butter but guns or taxes. France’s Emmanuel Macron ruled out higher taxes when he warned citizens in a March 2025 television address that they would need to “make budget sacrifices” in a “more brutal world.” Denmark’s Prime Minister Mette Frederiksen scrapped a public holiday to finance defence increases — a genuine if modest form of redistribution. The UK, notably, has cut its international development aid budget sharply to fund higher military spending. These are not purely technical choices. They are decisions about who bears the cost.
A Eurasian Review analysis from December 2025 put it directly: “Governments rarely finance rearmament by making permanent cuts to healthcare, education, or welfare. The usual idea of guns versus butter is mostly a myth.” But it added a caveat that matters: “Problems come not from defence spending itself, but from how its effects are handled.” When temporary fiscal measures become permanent, when special programmes become normal, when citizens observe a divergence between what they were told and what is happening — trust erodes, not because of the decision itself but because of the manner of its making.
What the Gymnich meeting in Limassol is not addressing
The defence agenda at this week’s Gymnich meeting in Cyprus — a discussion of the European Security Strategy and the overall architecture of EU defence cooperation — operates at a level of abstraction somewhat above the distributional question. Ministers discuss capability gaps, procurement coordination, and the extension of SAFE to third-country partners including Canada and Ukraine. They do not, in the Gymnich format, discuss which German city will cut its culture budget or which Romanian pensioner’s living standard will adjust to accommodate Bucharest’s €16.7 billion loan commitment.
That is the correct division of labour at that level. But the gap between the strategic conversation and the political one is where, historically, European defence ambitions have run into trouble. Not because citizens oppose security — support for higher defence spending has increased substantially across most EU member states since Russia’s full-scale invasion of Ukraine — but because the costs are distributed unevenly and the decisions are made opaquely.
The €800 billion plan is neither a fraud nor a guarantee. It is a political commitment that depends on member states following through on borrowing decisions that will bind future governments, on procurement processes that have historically been slow and fragmented, on an industrial base that is currently running at capacity and needs years of investment before it can absorb the new demand, and on a public willing to see the bill come due without knowing yet exactly what form it will take.
That is not a reason to stop. The threat environment that produced the plan is real. But it is a reason to talk honestly about what Europe has decided to buy, who will pay for it, and over what time horizon. That conversation is happening in some places, notably Poland and Denmark, more than others. In Brussels itself, at the level of the institutions that designed the plan, it is still largely deferred.
Source：
European Commission — White Paper for European Defence: Readiness 2030 https://commission.europa.eu/document/download/e6d5db69-e0ab-4bec-9dc0-3867b4373019_en?filename=White+paper+for+European+defence+%E2%80%93+Readiness+2030.pdf
Council of the EU — SAFE adoption press release (May 27, 2025) https://www.consilium.europa.eu/en/press/press-releases/2025/05/27/safe-council-adopts-150-billion-boost-for-joint-procurement-on-european-security-and-defence/
Council of the EU — SAFE instrument page (member state approvals, Feb–Apr 2026) https://www.consilium.europa.eu/en/policies/safe/
Columbia University Journal of Transnational Law — Unpacking ReArm Europe: Breaking Fiscal Taboos (fiscal mechanics deep-dive) https://www.jtl.columbia.edu/bulletin-blog/unpacking-rearm-europe-breaking-fiscal-taboos-after-the-trump-re-election
Kinstellar — Defence Readiness Omnibus analysis (June 2025) https://www.kinstellar.com/news-and-insights/detail/3557/defence-readiness-omnibus-eur-800-billion-to-be-spent-on-defence-in-the-next-four-years
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