NATO Ammunition Production Scale 2026: Factories, Capacity & Ukraine Supply

1. Pre-War Baseline: The Peacetime Legacy

Understanding NATO ammunition production in 2026 requires understanding how dramatically the landscape has changed from the pre-war baseline. Through decades of post-Cold-War demilitarisation, NATO nations systematically reduced ammunition stockpiles and production facilities. The logic was sound in a peacetime environment: large-scale conventional war in Europe seemed implausible, precision weapons were replacing area-effect munitions, and cost savings were politically attractive.

The consequences by 2022 were stark: the combined 155 mm production capacity of all European NATO members was approximately 300,000–400,000 rounds per year — less than 1,100 per day. Ukraine was assessed to need 6,000+ per day for sustainable operations. The industrial base had to be rebuilt almost from scratch under emergency conditions.

This section tracks where each major producer stands as of early 2026, after three-plus years of emergency investment and expansion.

2. United States

The US remains the world's largest producer of 155 mm artillery ammunition through its Government-Owned, Contractor-Operated (GOCO) munitions industrial base:

• Scranton Army Ammunition Plant (SCAAP), Pennsylvania: Primary 155 mm projectile manufacturer; expanded from ~14,000/month pre-war to an initial target of 90,000/month by end 2025, with further expansion underway toward 120,000/month
• Milan Army Ammunition Plant, Tennessee: Explosive loading for 155 mm and smaller calibres; significant capacity expansion completed 2024
• Iowa Army Ammunition Plant: Propellant production expanded; 155 mm propellant modules manufacturing rate more than doubled
• General Dynamics Ordnance, various facilities: Multiple GOCO contracts for additional projectile capacity at Saint Marks, FL and Parsons, KS

US 155 mm annual production capacity by early 2026: approximately 1.2–1.4 million rounds/year (vs ~180,000 pre-war). Further expansion to 2+ million/year targeted by end 2026. Investment total: approximately $3.5 billion in GOCO facility upgrades and new equipment.

3. Germany and Rheinmetall

Germany's Rheinmetall AG is the leading European ammunition producer and has made the most aggressive capacity investments:

• Unterlüss facility, Lower Saxony: Core 155 mm shell body production; capacity expanded to approximately 700,000 rounds/year by 2025, with a further stage targeting 1.1 million/year
• Auerbach propellant plant: Expanded to produce propellant charges for both domestic and allied production programmes
• Rheinmetall Ukraine LLC: Joint venture established 2024 to produce shells within Ukraine; first production milestone of 10,000 units/month reached in 2025
• Eurenco (Rheinmetall joint venture): Propellant production across Germany and France expanded jointly

Germany's overall 155 mm capacity (Rheinmetall and associated suppliers) expected to reach 1 million+ rounds/year by end 2026. Germany has also committed to being a major long-term supplier independent of Ukraine war politics, framing production investment as a NATO common good.

4. France

France is expanding through its state-owned KNDS (Nexter + KMW) umbrella and Eurenco propellant:

• Nexter/KNDS Bourges facility: Caesar SPG manufacturer also produces 155 mm projectiles; expanded casting and machining capacity adds ~250,000 shells/year by 2025
• Eurenco Bergerac: Single-base and double-base propellant production; critical supplier for both French and pan-European 155 mm programmes; production rate doubled
• Lacroix fuze production: Electronic and time fuze production expanded to support increased shell volumes; export-grade fuzes also supplied to Czech initiative procurement

France's annual production capacity: approximately 300,000+ 155 mm shells by 2026, up from approximately 80,000 pre-war. France has funded this primarily through a dedicated defence production emergency decree rather than standard procurement timelines.

5. Poland

Poland has emerged as one of the most strategically committed NATO ammunition expanders, driven by its geographic position and direct threat perception:

• Mesko SA (PGZ group), Skarżysko-Kamienna: Major 155 mm shell and mortar bomb manufacturer; production tripled since 2022 through shift-expansion and new equipment investment
• Nitro-Chem, Bydgoszcz: Explosive filling and propellant; expanded to process significantly higher volumes of imported explosive fill and domestic nitrocellulose
• New greenfield facility: Polish government announced construction of a completely new 155 mm production complex to be operational by 2027, targeting 1 million rounds/year capacity as an aspiration

Poland's trajectory is perhaps the most ambitious in Europe. By 2026, current annual capacity is approximately 400,000–500,000 shells; Poland's stated goal is to become Europe's largest by volume production nation by 2028, combining ammunition production with its own cavalry of artillery systems (Poland has purchased thousands of K9 Thunder and K2 Black Panther systems requiring significant indigenous resupply capability).

6. United Kingdom

The UK's ammunition industrial base was significantly reduced post-Cold-War but has been undergoing emergency expansion:

• BAE Systems Glascoed, Wales: Primary 155 mm and artillery ammunition facility; production rate approximately doubled, with further investment planned
• Chemring Energetics, Northumberland: Explosive manufacturing; significant production expansion approved under emergency funding
• Defence Equipment & Support (DE&S) contracts: Multiple long-term contracts awarded to UK suppliers to support sustained production rates

UK 155 mm capacity in 2026: approximately 200,000–250,000 shells/year — modest by European standards but supporting UK stockpile replenishment and continued Ukraine contributions. The UK has also been a significant Brimstone and NLAW supplier to Ukraine from its own production.

7. Nordic and Baltic Nations

Several smaller NATO members have made surprisingly significant contributions:

• Norway — Nammo: The Scandinavian ammunition producer Nammo (Norway-Finland joint venture) has expanded 155 mm and smaller-calibre production significantly; a new facility under construction will add substantial capacity by 2027
• Sweden — BAE Systems Bofors: Post-NATO accession, Sweden has expanded its historic Bofors production line; now a contributor to European ammunition supply chains
• Finland: Increases in mortar bomb and 155 mm production at Chemring-owned facilities; Finland's post-NATO accession has unlocked interoperability constraints
• Estonia/Latvia/Lithuania: Limited domestic production but driving European procurement; the Baltic states have contributed politically outsized shares of their military budgets to Ukraine aid

8. South Korea as a Swing Producer

South Korea has emerged as the most important extra-NATO ammunition supplier to Ukraine, through both direct and indirect channels:

• South Korea's Hanwha Defense and other producers maintain large 155 mm production capacity — estimated at 1–2 million rounds/year — developed for South Korea's own large artillery force (K9 Thunder is South Korea's primary export SPG)
• South Korea initially declined to send shells directly to Ukraine due to policy on not supplying weapons to active conflict zones; however, transfers to the US (replenishing US stocks transferred to Ukraine) have occurred
• Czech initiative procurement has included South Korean shells delivered to Ukraine through third-country channels
• Growing signals in 2026 that South Korea may modify its policy, potentially enabling direct supply — which would be highly significant given its production volume

9. Russia + North Korea: The Other Side

Context requires assessing the opposing production base:

• Russia: The Russian industrial-military complex, operating under full wartime mobilisation since early 2023, is estimated to produce 2–3+ million 152 mm and 122 mm rounds/year across its restored Soviet-era facilities; the three-shift model at Nizhny Novgorod, Perm, Ulyanovsk, and other ammunition cities has significantly expanded output
• North Korea: Deliveries of 1–3 million rounds to Russia in 2023–2024, primarily 152 mm and 122 mm, have provided a critical supplement; quality has been reported as variable but volume sufficient to sustain Russian fire rates
• Iran: Drone (Shahed) supply has been better documented than artillery ammunition; Iranian 155 mm production for Russia has been reported but not confirmed at scale

Combined Russia + North Korea production: estimated 3–5 million rounds/year, still maintaining a numerical advantage over combined NATO production, but the gap is closing significantly compared to the 2022–2023 situation.

10. The Total Picture 2026

The overall trajectory is positive for the Western side: from a position of near-total inadequacy in 2022, NATO has built a production base that by end of 2026 will approach production parity with Russia plus North Korea. The critical remaining challenge is translating that production capacity into delivered stocks to Ukraine — logistics, contract timelines, and political will remain as important as raw industrial output.

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