The REPEAD Demand Signal: €125.9 Billion in Shared Requirements

NATO’s Annual 2025 Report, released in March 2026, formally documented the alliance’s shared requirement for €125.9 billion ($145 billion USD equivalent) in munitions and air defence capabilities. This figure emerged from the Reoccurring Process for Aggregating Demand (REPEAD) — a systematic methodology through which NATO member states jointly identify capability gaps and quantify procurement needs across the alliance.

The €125.9 billion demand signal encompasses missiles, gravity-release ordnance, loitering munitions, deep precision strike systems, maritime battle-decisive weapons, and integrated air defence systems spanning short-range through strategic-range interceptors. The scope reflects recognition that European and North American munitions production capacity — despite significant recent expansion — remains insufficient to sustain wartime consumption rates or meet the alliance’s peacetime deterrence posture simultaneously.

Secretary General Mark Rutte, in public remarks accompanying the 2025 Report release, stated: “We have been able to increase production sixfold compared to a couple of years ago, but clearly there is still more to do as the defense industrial base is simply not producing enough.” Rutte identified munitions production as a summit-level priority for the alliance’s upcoming gathering.

NATO Member Defence Spending: 2% Benchmark Achieved Across All 32 Members

For the first time in NATO’s history, all 32 member states met or exceeded the 2% of Gross Domestic Product (GDP) defence spending benchmark in 2025. This represents a structural shift in alliance burden-sharing and resource availability for capability development and procurement.

Aggregate NATO defence spending increased by €94 billion in 2025 compared to 2024, driven primarily by increases in European and Canadian expenditure. Despite this growth, Secretary General Rutte indicated that the combined alliance spending remains insufficient to address the quantified munitions and air defence gap identified by REPEAD.

The Industrial Base Assessment: Sixfold Capacity Increase Insufficient

Despite NATO-wide production capacity increasing sixfold since 2022, alliance leadership explicitly stated in the 2025 Annual Report that existing output levels remain inadequate. This conclusion rests on two interconnected factors: sustained peacetime deterrence posture (requiring continuous ammunition stockpile replenishment and air defence interceptor production for NATO air defence systems) and wartime consumption rates (estimated at 20–40 times peacetime production for high-intensity conflict scenarios).

Rheinmetall Chief Executive Officer Armin Papperger provided external corroboration of this assessment in early 2026, stating publicly that “European, American, and Middle Eastern munition stockpiles were nearly empty.” This comment signalled not only NATO shortages but also the global constraint on munitions availability driven by competing demands from Ukraine, Middle East operations, and Indo-Pacific deterrence requirements.

The €125.9 billion demand signal therefore reflects the alliance’s estimate of the total expenditure needed to restore NATO munitions and air defence stockpile positions to targets considered adequate for a credible two-front deterrence scenario against potential peer adversaries.

WOME Technical Analysis: Munitions Classes and Industrial Capacity Implications

Munition Categories Implicit in the Demand Signal:

The REPEAD quantification encompasses conventional high-explosive (HE) gravity-release ordnance (Hazard Division 1.1, 1.2, 1.4 depending on fill and fuze assembly), guided air-to-surface and surface-to-surface missiles (typically HD 1.1 warheads with composite propulsion), loitering munitions (classified as munitions rather than UAVs — typically HD 1.1 or 1.2 payloads), precision strike weapons (including air-launched cruise missile equivalents), and defensive surface-to-air guided weapons (air defence interceptors ranging from very-short-range (VSHORAD) to strategic-range systems).

Industrial Capacity Constraints:

NATO-wide munitions production at sixfold capacity (2022 baseline) is estimated to have reached 9–10 million rounds annually across all member nations combined, spanning all calibres. However, this figure aggregates across disparate production facilities, supply chains, and specialised energetics (explosive fills and propellants) suppliers. Critical bottlenecks identified by defence industrial analysts include:

• Energetics supply — toluene, hexamine, and hexanitrostilbene (HNS) production capacity remains constrained globally. The Holston ordnance facility (US TVA region) remains the world’s largest producer of cyclotetramethylenetetranitramine (RDX), the base energetic for plastic-bonded explosive (PBX) and insensitive munitions (IM) warheads. Supply contracts, not production capacity, currently limit availability.

• Precision guidance kits and electronic components — production of Joint Direct Attack Munition (JDAM) kits, GPS/inertial guidance units, and fuze electronics suffers from semiconductor supply constraints and skilled labour shortages in NATO nations.

• Air defence interceptor manufacturing — production of Patriot, IRIS-T, SAMP/T, and other strategic-range systems requires integrated final assembly capacity. European nations are expanding Patriot and IRIS-T production, but each system requires 24–36 months full production ramp-up from zero to full-rate production (FRP).

• Loitering munition standardisation — NATO has no agreed standard for loitering munition Hazard Classification (HD/CG designation) or qualification framework. Individual member states use divergent designs, limiting cross-alliance supply interoperability and consolidating demand across fewer vendors.

The US Share: 60% of NATO Defence Spending

Despite the €94 billion annual increase in European and Canadian defence spending, the United States continues to provide approximately 60% of total NATO defence expenditure. This structural imbalance shapes REPEAD implementation, as US munitions production capacity (concentrated at Joint Base McGuire-Dix-Lakehurst (JBMDL), picatinny arsenal, and contractor facilities) remains the alliance’s primary reservoir for rapid surge production.

European nations are simultaneously investing in domestic production expansion (Rheinmetall, Nexter, Leonardo, KMW) while remaining dependent on US supply chains for critical materials and guidance components. REPEAD demand signal therefore implicitly assumes continued transatlantic industrial integration and US commitment to allied munitions supply — a geopolitical assumption that remains untested under sustained peer-conflict scenarios.

ISC Commentary

ISC Commentary

Further analysis pending.