Context: From Three Decades of Underinvestment to Urgency

For thirty years after the Cold War's end, most European NATO members systematically reduced defense spending, collecting a "peace dividend" that left their armed forces with depleted stocks, aging equipment, and shrunken force structures. When Russia seized Crimea in 2014, a few countries — notably the Baltic states and Poland — began reversing this trend. But most of Europe remained complacent.

24 February 2022 changed everything. Russia's full-scale invasion of Ukraine demonstrated unambiguously that large-scale territorial war in Europe was not a historical relic but a present reality. The shock was amplified by the speed with which Ukraine's cities were targeted and the scale of Russian military mobilization.

Then came a second shock: Donald Trump's return to the White House in January 2025 and his openly conditional approach to NATO commitments. When Trump questioned whether the US would "defend" NATO members that didn't meet spending targets and pushed a Ukraine peace framework that many Europeans viewed as dangerously naive, the political will for European defense investment finally coalesced.

The result has been the most significant European defense spending surge since the early Cold War.

ReArm Europe and the SAFE Initiative

In March 2025, European Commission President Ursula von der Leyen announced the "ReArm Europe" initiative — a proposal to mobilize €150 billion in European defense investment over five years through a combination of joint procurement, loan guarantees, and new EU financing instruments.

The initiative was subsequently refined into the "SAFE" (Security Action for Europe) instrument, a €150 billion loan program allowing EU member states to borrow against EU creditworthiness to fund defense spending without the normal EU fiscal rules constraints.

Key Components

• Joint Procurement: EU-level procurement of ammunition, air defense missiles, and other high-demand items to benefit from economies of scale and reduce competition between European buyers
• Defense Industry Investment: Grants and loans for European defense manufacturers to expand production capacity
• Stockpile Building: Funding for member states to build up depleted ammunition and equipment stocks
• Ukraine Support: A dedicated Ukrainian defense production integration track supporting the scaling of Ukraine's domestic defense industry
• SAFE Loans: €150 billion in EU-backed loans for defense investment, circumventing normal debt-to-GDP constraints

Political Context

The initiative passed the European Parliament with broad support — reflecting the changed political environment in which defense investment is now seen across most of the political spectrum as essential rather than controversial. Former holdouts Hungary and Slovakia extracted concessions on agricultural policy in exchange for supporting the measure.

Country-by-Country Defense Spending Data (2024 vs. 2026)

Source: NATO estimates and national budget data, 2026.

Germany's Zeitenwende 2.0: The Merz Defense Revolution

Germany's defense transformation under Chancellor Friedrich Merz (elected February 2025) has been the most dramatic shift in European defense politics. After decades of deep reluctance about military power, Germany has unleashed a defense investment surge that is reshaping the European strategic landscape.

Key German initiatives:

• €500 Billion Infrastructure/Defense Fund: Germany passed a constitutional amendment in March 2025 to create a €500 billion off-budget fund for infrastructure and defense investment, circumventing the debt-brake constitutional limit. Approximately €100 billion is allocated to defense.
• Taurus Cruise Missiles: Germany approved the delivery of Taurus long-range cruise missiles to Ukraine — a major step that Scholz had repeatedly refused
• Ukraine Commitment: Germany has committed to €40 billion in annual Ukraine support under a multi-year framework
• Army Expansion: Bundeswehr expansion from 183,000 to a target of 230,000 troops
• European Defense Leadership: Germany has moved from being a brake on European defense cooperation to a driver of it

See: Merz and Germany's Ukraine Policy Shift

France: Nuclear Deterrence and Conventional Surge

France occupies a unique position in European defense: the only EU member with an independent nuclear deterrent, and historically the most willing to project military power. Under President Macron, France has taken an increasingly assertive role in Ukraine support and European defense leadership.

Key French contributions and commitments:

• Committed to reaching 3% of GDP defense spending by 2027 (up from 2.1% in 2024)
• SCALP cruise missiles, Caesar self-propelled howitzers, AMX-10RC wheeled tanks delivered to Ukraine
• Stated willingness to deploy troops to Ukraine in a monitoring capacity if a ceasefire agreement is reached
• Leading the "Coalition of the Willing" format for European security guarantees to Ukraine
• Macron raised the prospect of extended nuclear deterrence covering Ukraine — the most controversial European security proposal of the year

Poland: Europe's Defense Powerhouse

Poland has transformed itself into Europe's most militarily serious nation by raw spending metrics, driven by its geographic position on NATO's eastern flank and direct historical memory of Russian and Soviet occupation.

• Defense spending of ~4.7% of GDP — the highest in NATO
• Army expansion to 300,000 soldiers (target)
• Largest single European contributor to Ukraine military aid in absolute terms
• Procurement of US Abrams tanks, F-35 aircraft, Patriot systems, HIMARS, and K2 tanks from South Korea
• Emerging as the preferred logistics hub for Ukraine aid delivery
• Constructing new military infrastructure on the Belarus and Kaliningrad borders

Poland's military buildup reflects a clear-eyed strategic calculation: Ukrainian defeat would place Russian forces on Poland's pre-war eastern border, making deterrence far more difficult and expensive. Supporting Ukraine is therefore Polish national security policy, not just allied solidarity.

Nordic-Baltic States: Highest Per-Capita Commitment

The Nordic and Baltic countries have provided the highest per-capita contributions to Ukraine of any group of nations, reflecting their proximity to Russia, historical experience with Russian/Soviet aggression, and political will that sometimes surpasses larger allies.

Baltic States (Estonia, Latvia, Lithuania)

All three Baltic states now spend 3–4% of GDP on defense, the highest in Europe as a share of GDP. Their contributions to Ukraine — in artillery, ammunition, anti-tank weapons, and training — have been disproportionate to their size. They have also been among the most vocal advocates for Ukraine's eventual NATO membership, recognizing that their own security is interconnected with Ukraine's fate.

Scandinavia (Denmark, Norway, Sweden, Finland)

Denmark has pledged among the highest per-capita Ukraine aid of any nation. Norway has committed €7.5 billion over five years. Sweden became NATO's 32nd member in March 2024 and has integrated into NATO planning. Finland, sharing 1,340km of border with Russia, has emerged as a key contributor to NATO's eastern flank.

Defense Industry Expansion

The spending surge is catalyzing major changes in European defense industrial capacity:

Ammunition Production

European ammunition production has roughly tripled since 2022. The target of one million 155mm artillery shells per year for Europe is approaching fulfillment, with major investments in facilities in Germany, France, Poland, Czech Republic, and Norway. This compares to the acute shortage in 2023 when production was estimated at only 300,000 rounds per year for the entire EU.

Air Defense Missiles

MBDA (manufacturer of ASTER, Meteor, Brimstone, and CAMM) has doubled capacity at key facilities. The IRIS-T SLM production line has expanded under German investment. Deliveries to Ukraine and NATO stockpile building are proceeding simultaneously.

Drone Industry

Multiple European countries are developing domestic FPV and long-range drone production capabilities, partly inspired by Ukraine's experience. A European drone production initiative under ReArm Europe funding is supporting multiple startups and established manufacturers.

Joint Procurement

The EU's first joint ammunition procurement — 1 million shells purchased collectively at significantly lower unit cost than individual national procurement — has demonstrated the economic logic of European defense integration and opened the door to further joint programs.

Impact on Ukraine's War Effort

The European spending surge has had significant practical impact on Ukraine:

• Ammunition volumes: European artillery shell deliveries to Ukraine have increased substantially, partially compensating for the slower pace of US transfers
• Air defense: Multiple IRIS-T SLM, SAMP/T (Aster 30), and additional Patriot batteries have been delivered or are being processed
• Taurus missiles: Germany's approval and delivery of Taurus adds a critical long-range strike capability Ukraine previously lacked
• Financial support: European contributions now represent over 40% of total Ukraine financial support by some metrics
• Strategic signaling: European determination signals to Russia that Western support is not solely contingent on US political will

Challenges and Limitations

Despite the historic scale of the spending surge, significant challenges remain:

• Time lag: Most new defense investment takes 3–7 years to translate into deployed capability. The funding committed in 2025–2026 will mostly mature after the acute period of the Ukraine war
• Political sustainability: Defense spending increases require sustained political will. Economic downturns, inflation concerns, or domestic political shifts could reverse commitments
• Interoperability: European armies buy different equipment from different manufacturers, limiting tactical interoperability without US-standard systems
• Technical gaps: Europe lacks certain critical capabilities that remain US-only: space-based ISR, strategic airlift, submarine-based nuclear deterrence, and some precision munitions
• Hungary and Slovakia: Two NATO/EU members continue to resist the consensus on Ukraine support and Russia policy, creating coordination frictions

Frequently Asked Questions