UK MOD Wargames Munitions Supply Chain with KNDS, Rheinmetall, MBDA

Technical Summary

The Ministry of Defence has run a strategic wargame with five tier-one industry partners — Boeing, KNDS, MBDA, Rheinmetall and Tekever — to stress-test the procurement and distribution of munitions and other critical defence materiel under sustained operational demand.^[1][2] The exercise was announced by GOV.UK on 29 April 2026 and reported by Defence Online on 1 May 2026, building on a foundational replenishment-focused exercise conducted in December 2024.^[1][2] It brings together senior MOD leadership with the industrial base that owns most of the United Kingdom's prospective munitions throughput: KNDS for 155 mm artillery and 105 mm tank ammunition; MBDA for the UK complex weapons portfolio under Portfolio Management Agreement 2 (PMA2) — Storm Shadow, Brimstone, Meteor, ASRAAM, Sea Ceptor (CAMM) and Sea Viper (Aster);^[3] Rheinmetall for 30 mm and 40 mm cannon ammunition and the Rheinmetall BAE Systems Land (RBSL) gun barrel programme being delivered with Sheffield Forgemasters steel under an £800 million-plus contract;^[4] Boeing for Apache stockpiles and JDAM tail kits; and Tekever for the AR3 small uncrewed aerial system (UAS), the basis of the RAF's StormShroud electronic-warfare variant now in service with 216 Squadron.^[5]

The wargame's stated objective is to identify constraints in procurement and distribution — in operational research terms, to find the bottleneck before the bottleneck finds you.^[1] Findings are intended to feed into national defence policy, which in practice means the Defence Industrial Strategy refresh and the Strategic Defence Review (SDR) implementation pipeline, including the at-least-six new munitions and energetics factories announced on 19 November 2025 under a £6 billion in-Parliament munitions investment, of which £1.5 billion is allocated to an "always-on" priority-munitions pipeline.^[6][7]

Analysis of Effects

For Weapons, Ordnance, Munitions and Explosives (WOME) practitioners, the strategic significance is that the exercise treats munitions supply as a system-of-systems problem, not a procurement issue. The 2023–26 cohort of UK ammunition contracts under the £2.4 billion 15-year Next Generation Munitions Solution (NGMS) framework with BAE Systems — beginning with the £190 million 155 mm increment of July 2023 and now totalling around £410 million across successive orders^[8][9][10] — the Defence General Munitions DGM/1911 two-year extension awarded direct to SwissP Defence AG of Thun (the Original Equipment Manufacturer for the in-service natures) at £42,303,333.30 excluding VAT (£50,764,000 including VAT) over the period 1 April 2026 to 31 March 2028, under the Procurement Act 2023 defence and security special regime,^[11][18] and the active 9 mm Ball NATO competition under DGM/2070 (closing 13 March 2026)^[12] have shown the procurement layer can be accelerated. The wargame implicitly accepts that the harder problem now sits downstream: explosives supply (in particular RDX and HMX from Holston Army Ammunition Plant in Kingsport, Tennessee, the sole US source for both energetic materials and historically the supplier of around 90 per cent of allied requirement),^[13] propellant from EURENCO (Bergerac) and the European nitrocellulose chain that Rheinmetall has been moving to secure through acquisition,^[14][15] forging capacity for shell bodies, fuze inventory, and the sustainment of trained ammunition technicians and qualified storage capacity. BAE Systems has stated its Glascoed explosive-filling facility will deliver a sixteen-fold increase in 155 mm production capacity, with initial industrial capacity expected by end-2026.^[16]

The inclusion of Tekever is notable. Group 1–3 uncrewed aerial systems and any future loitering-munition variants consume warhead, energetic material and battery supply chains that overlap only partially with conventional artillery, and they impose new demands on Hazard Division (HD) 1.4 and 1.6 storage that British military estate Explosive Limits Licences (ELLs) were not originally written to accommodate.

Personnel and Safety Considerations

The reasonably foreseeable second-order effect of any such exercise is pressure on the Defence Equipment & Support (DE&S) Defence Storage and Distribution Agency (DSDA) and contractor-operated explosive storage to absorb increased throughput without a corresponding revision of Net Explosive Quantity (NEQ) licences or Explosive Limits Licences. Storage compatibility risk rises whenever HD 1.1 D mass-detonating items (artillery shells, fuzed warheads) and HD 1.4 G items (some uncrewed system payloads) are co-located under workaround licences. The current regulatory baseline is the Defence Safety Authority Defence Ordnance, Munitions and Explosives Safety Regulator (DOSR) framework articulated through DSA 02.OME (regulations) and DSA 03.OME (implementation guidance), which jointly replaced the withdrawn JSP 482 series;^[17] supply-chain pressure is not, of itself, a basis for safety-case relaxation.

Ammunition technicians and Inspectorate of Explosives staff supporting any wargame-derived throughput acceleration should expect to be asked for evidence on three points: that storage compatibility groups are correctly assigned, that Quantity Distance (QD) calculations remain valid for the proposed inventory, and that surveillance and shelf-life records support the as-stored hazard classification.

Data Gaps

DATA GAP: the wargame report has not been released publicly — findings disclosed to date are limited to MOD-curated press lines.^[1][2] DATA GAP: the specific scenarios used (geographic axis, conflict duration, threat assumptions) are not in the open record. DATA GAP: it is not yet clear which of the at-least-six SDR munitions and energetics factories will be tied to wargame findings, nor whether feasibility studies announced earlier in 2026 have moved into contracted phase. DATA GAP: industry participants' findings on Tier-2 and Tier-3 supplier resilience — the layer most likely to fail in protracted operations — are not in the public domain.

AI-assisted technical assessment based on open-source material. Not a formal intelligence product. Source evaluation applies NATO STANAG 2022. Acronyms expanded on first use; defined acronyms used thereafter.