Can Europe’s Defense Spending Revive Its Economy? The Growth Opportunity and the Trade-Offs

Quick Answer

EU defense spending reached €418 billion in 2025 and is projected by the European Defence Agency to rise to €454 billion in 2026.
NATO’s new 2035 commitment is 5% of GDP, but only 3.5% is for core defense; up to 1.5% can cover broader security-related investments such as infrastructure and resilience.
Higher defense spending can support GDP, jobs, manufacturing, and R&D, but there is no single reliable “defense multiplier.”
The economic payoff is larger when procurement, research, production, and supply chains remain in Europe rather than leaking into imports.
Defense investment can strengthen industrial capacity, but it still competes with energy grids, housing, transportation, education, and other civilian priorities.

Can Europe’s Defense Spending Revive Its Economy? The Growth Opportunity and the Trade-Offs

Europe’s defense buildup is no longer a small adjustment to government budgets. It has become one of the continent’s largest industrial and fiscal shifts in decades.

EU defense spending reached €418 billion in 2025, equal to 2.2% of EU GDP, according to the European Defence Agency. The agency projects spending could reach €454 billion, or about 2.4% of GDP, in 2026. At the same time, NATO allies have committed to a much larger defense and security investment target by 2035.

That creates an economic question alongside the security question: could Europe use rearmament to revive manufacturing, research, productivity, and skilled employment, or will the buildup simply consume resources that could have gone into civilian investment?

How Dramatically Has Europe Increased Defense Spending?

The post-Cold War era of relatively low European military spending has clearly ended. EU defense expenditure rose from about 1.5% of GDP in 2020 to 2.2% in 2025, and NATO allies are now working toward a much broader 5% defense-and-security commitment by 2035.

In 2020, defense expenditure among European Defence Agency members was about €198 billion, or 1.5% of their combined GDP. By 2025, EU Member States were spending €418 billion. That is not a temporary accounting change; it represents a major reallocation of public resources toward equipment, production capacity, research, readiness, and personnel.

The biggest policy shift came at NATO’s 2025 Hague Summit. Allies committed to investing 5% of GDP annually by 2035. However, describing the entire 5% as conventional military spending would be misleading.

At least 3.5% is intended for core defense requirements. Up to another 1.5% can cover broader defense- and security-related investments, including critical infrastructure protection, civil preparedness, resilient networks, innovation, and the defense industrial base.

That distinction matters economically because some of the additional spending may also strengthen transportation, communications, cyber resilience, logistics, and infrastructure with civilian value.

Can Military Spending Actually Increase Economic Growth?

Defense spending can raise economic activity, particularly when it creates domestic investment, equipment orders, research, and employment. But the size of the effect depends heavily on what governments buy, where they buy it, and how the spending is financed.

The basic argument sometimes called “military Keynesianism” is simple. When a government orders aircraft, radar systems, vehicles, drones, software, or ammunition, businesses receive contracts. Those companies hire workers, buy components, expand factories, and pay suppliers. Some of that money then circulates through the wider economy.

But there is no universal multiplier showing that every euro of defense spending creates the same amount of GDP. European Commission simulations published in 2025 estimated that a gradual increase in defense spending of up to 1.5% of GDP could leave EU real GDP roughly 0.5% above the baseline by 2028, while also increasing government debt.

More recent IMF research published in 2026 found that historical short-term defense spending multipliers across EU countries could exceed one in some circumstances. The same research emphasized that the results vary substantially depending on import intensity, fiscal conditions, public investment efficiency, and the type of defense expenditure.

Equipment procurement appears particularly important because it can generate industrial investment and supply-chain activity. Spending mostly on imported equipment, routine consumption, or other expenditures may produce a different domestic economic effect.

Could Defense Investment Rebuild Europe’s Industrial Base?

The strongest economic case for higher defense spending is not simply that governments are spending more money. It is that long-term orders could expand manufacturing capacity, engineering skills, R&D, and technologies that also have civilian applications.

Europe already has deep capabilities in aerospace, automotive manufacturing, machinery, electronics, chemicals, software, and precision engineering. The defense buildup creates an opportunity to redirect underused industrial capacity toward products for which demand is rising.

A 2026 European Commission analysis specifically examined how idle manufacturing capacity could be repurposed for defense production. The attraction is obvious: existing factories, supply chains, engineers, and industrial know-how can sometimes be adapted faster than entirely new production systems can be created.

The potentially more valuable effect is technological spillover. Aerospace, cybersecurity, artificial intelligence, satellite systems, advanced materials, sensors, robotics, communications, and semiconductors all have both defense and civilian applications.

Still, conversion is not automatic. A factory capable of producing civilian vehicles cannot instantly become a missile plant, and a defense production line cannot necessarily switch back to consumer products without significant investment. The economic benefit depends on whether Europe builds flexible industrial and technological capabilities rather than narrowly specialized capacity that becomes stranded later.

What Happens if Europe Buys Most of Its Weapons From Abroad?

Defense spending provides a smaller domestic stimulus when procurement flows to foreign suppliers. Europe’s challenge is therefore not only spending more, but developing enough industrial capacity to satisfy more of that demand inside Europe.

The often-repeated claim that roughly 80% of Europe’s recent defense procurement went outside the EU comes from a specific historical period rather than a permanent rule. The Draghi competitiveness report found that between June 2022 and June 2023, 78% of procurement spending went to suppliers outside the EU, with 63% going to U.S. suppliers.

That number should be used carefully. The European Commission itself has noted competing estimates based on different definitions and datasets. More recent Commission analysis still concludes that less than half of European defense procurement has been sourced in Europe under another dataset covering procurement since 2022.

The economic logic remains the same regardless of the exact percentage. If a European government spends billions on imported military equipment, it improves military capability but much of the direct manufacturing stimulus, supplier revenue, and technological learning takes place abroad.

That is one reason EU policy increasingly emphasizes joint procurement and strengthening the European Defence Technological and Industrial Base. The Commission’s Readiness Roadmap 2030 includes a political objective for at least 55% of defense investment procurement to come from that European industrial base.

Does More Defense Spending Mean Less Money for Civilian Investment?

The economic trade-off is real, but it is not always a simple choice between tanks and schools. How governments finance the buildup and what qualifies as security investment determine how much pressure falls on civilian budgets.

The classic “guns versus butter” problem still applies. Labor, capital, engineering talent, steel, electronics, and government borrowing capacity are limited. Resources directed toward one priority cannot always be used simultaneously somewhere else.

Europe also needs major investments in electricity grids, housing, transportation, digital infrastructure, clean energy, education, and productivity-enhancing technologies. Some of those investments can generate civilian economic returns for decades.

Defense creates a different kind of return. Military readiness may not generate toll revenue or lower electricity bills, but governments treat security as a public good that protects the broader economy. The policy question is therefore not whether defense or civilian infrastructure has value. Both can have value for different reasons.

The bigger risk appears when higher military budgets are financed without sufficient tax revenue, spending reforms, productivity gains, or fiscal space. European Commission modeling has found that a major defense expansion could raise GDP while simultaneously increasing public debt, illustrating why economic stimulus does not automatically mean the spending pays for itself.

Key Takeaways at a Glance

Europe’s defense buildup is large enough to influence manufacturing, investment, employment, public finances, and economic growth.
The economic impact depends heavily on whether spending goes toward European equipment production, R&D, and industrial investment.
Defense fiscal multipliers are not fixed and can vary widely depending on imports, financing, economic conditions, and spending composition.
Dual-use technology and flexible manufacturing capacity offer a stronger long-term economic case than simple consumption of military equipment.
Higher defense budgets still carry opportunity costs and cannot replace broader reforms needed to improve European productivity and competitiveness.

Spending Choice	Possible Economic Benefit	Main Limitation
Domestic equipment	Factories and supply chains	Capacity takes time to expand
Defense R&D	Innovation and dual-use technology	Commercial spillovers are uncertain
Imported equipment	Faster military capability	Less domestic stimulus
Security infrastructure	Military and civilian resilience	Requires careful project selection
Large budget expansion	Short-term demand support	Debt and opportunity costs

Europe’s Economic Payoff Depends on What It Builds, Not Just What It Spends

Higher military spending could support parts of Europe’s economy, especially after years of weak industrial investment. Large and predictable procurement programs can justify new factories, train engineers, support smaller suppliers, and increase investment in technology.

But defense spending by itself is not an economic revival strategy. Buying imported equipment may improve security without doing much for European productivity. Expanding payrolls can support demand without creating the same long-term industrial capacity as research, equipment production, or resilient infrastructure.

The economic case becomes stronger when security spending also deepens European manufacturing, technology, energy resilience, logistics, and research capabilities. It becomes weaker when governments simply spend more while allowing investment to leak overseas or crowd out high-return civilian projects.

Europe’s challenge is therefore broader than choosing between “guns” and “butter.” It is determining whether a historic security buildup can be designed in a way that strengthens both military readiness and the productive foundations of the wider economy.