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Defence: evidence and policy appraisals

Detailed research records, alternatives, costs and provisional assessments. These records preserve different scopes and historical reviews; they are not an additional ranked action plan.

Evidence → choices → outcomes

What could improve it?

Armed forces able to deploy and sustain the commitments the government sets, with equipment delivered close to plan.

These options link to their national assessment, including funding, delivery constraints and remaining uncertainties.

  • Assessed option · provisional

    Protect defence sustainment and retention through risk appraisal

    Identify priority maintenance, stock and specialist-retention gaps through appropriately protected assurance.

    7/10 criteria scored

    Coverage of the appraisal, not an impact score.

    Delivery: Red

    Whole-life costs incomplete

    Evidence and delivery constraints

    Public audits establish concern; classified readiness prevents a reliable public effect estimate.

    Require a costed sustainment assessment alongside procurement commitments; publish only safe aggregate assurance. Low public evidence does not imply defence is unimportant or exempt from scrutiny.

    Resilience and sustainability appraisal queueEvidence and assessment

  • Assessed option · provisional

    Deliver what is already funded

    8/10 criteria scored

    Coverage of the appraisal, not an impact score.

    Delivery: Amber

    Whole-life costs incomplete

    Evidence and delivery constraints

    Audits diagnose failures; no general cash saving is established for this proposal.

    Name contracts, renewal dates and weaknesses; recruit commercial expertise; publish baselines, performance and remedies.

    Growth and prosperity listEvidence and assessment

This domain in the UK SWOT →UK National Action Plan →

How we assessed these options

What would it take to improve this?

Detailed policy appraisal

The outcome we want: Armed forces able to deploy and sustain the commitments the government sets, with equipment delivered close to plan.

The main constraint: Money is rising, but trained people, stocks, maintenance capacity and industrial lead times limit how fast it becomes usable capability — and the MOD must choose between readiness now and new equipment later within the Defence Investment Plan.

Constraint type: workforce, infrastructure, market structure.

The options on the table

What is funded now, and the changes assessed against it — the current baseline and the alternatives, before the position today and the actions.

Provisional single-reviewer assessments from the 6 October 2026 review; not approved business cases, and not government policy.

  • Protect defence sustainment and retention through risk appraisalDelivery risk: Red

    Funded now
    Not yet stated in the record.
    The change assessed
    Identify priority maintenance, stock and specialist-retention gaps through appropriately protected assurance.

    Range if completed: 11.0–20.0 out of 30 (equal weights; not yet assessed: increment beyond baseline (Ad), expected incremental benefit (Bn), incremental affordability (Co))

Assessed with another page as home

These options also bear on this topic. The full assessment sits on the home page named under each.

  • Deliver what is already fundedDelivery risk: Amber

    Home: Follow the money.

    Funded now
    Not yet stated in the record.
    The change assessed
    Not yet defined.

    Range if completed: 14.0–20.0 out of 30 (equal weights; not yet assessed: expected incremental benefit (Bn), incremental affordability (Co))

Alternatives already on record: 23 options listed under the points in the position today (16 without an action record), and 3 earlier options under other options compared. They have not been scored in the review.

The position today

  • What we can build on (2)
  • What is holding us back (6)No official figure says how ready the armed forces are to fight. The 2025 Strategic Defence Review describes stockpiles as inadequate and recommends publishing availability data each year; regular forces are about 30% smaller than in 2006 while real spending is about 12% higher. (2025 review; 2026 position · United Kingdom)
  • What could improve things (1)Setting requirements with budget and technical authority together, and funding stocks, maintenance and training first, could turn the rising budget into usable readiness faster.
  • What could make it worse (1)

Which quadrant a point sits in is our analytical judgement, not a statistical category. Each point says whether it is a measured fact, our synthesis or a risk.

What we can build on Strengths

What is holding us back Weaknesses

What could improve things Opportunities

What could make it worse Threats

The actions worth examining

Our shortlist for this page. Research quality, policy status, cost and funding are judged separately; none of these is government policy unless its status says so.Our shortlist. None is government policy unless its status says so.

  1. Fund military readiness before counting new announcements — programme funding exists; project allocation unconfirmed
  2. Buy measurable results and manage contracts through delivery — not yet costed / funding not identified

  • Action 1A26Policy status: site-editorial action

    Fund military readiness before counting new announcements

    Within the agreed settlement, give priority to trained people, maintenance, munitions and support for agreed commitments, and stage new equipment decisions against what can be delivered.

    The thread: issue, evidence, action

    1. Issue Weakness: The February 2024 Defence Committee assessment found warfighting readiness in doubt: every service had capability shortfalls and stockpile shortages and was losing personnel faster than it recruited. Readiness data once published are now withheld. Also: weakness, opportunity, strength
    2. Evidence Full-time trained strength; UK regular forces (trained and untrained)
    3. Action A26, this action

    Budget 2026 bears on this

    Budget 2026 reallocates capital to the Defence Investment Plan; it does not separately fund stocks, maintenance or training.

    Defence Investment Plan (DIP)Defence Investment PlanTrack delivery →

    Assessment (draft, 6 October review)

    Who decides:
    Ministry of Defence and the services; HM Treasury; suppliers (UK)
    Evidence:
    Expert or audit recommendation. Parliamentary and expert assessments, with incomplete public data: detailed availability figures are classified.
    Expected effect:
    Direction plausible; size not established.
    Cost and funding

    £297.7bn in total, 2026–27 to 2029–30, cash (nominal) prices; 1 further cost line, some not yet costed

    Funding: Programme funding exists; project allocation unconfirmed

    Why it is shortlisted here: Readiness — people, stocks and maintenance — is what spending must buy; the February 2024 committee assessment raised concerns about sustained warfighting.

    Builds on the option Stockpiles, maintenance and sustainment compared below.

    What it takes
    The problem

    Spending and headcount do not show whether forces can deploy and sustain operations; the last public assessment found warfighting readiness in doubt, with stockpile shortages and personnel lost faster than recruited.

    Who is affected, and where

    The armed forces and the UK population they protect; allies relying on UK commitments. Territory: UK. Defence is reserved to the UK government.

    Policy status

    UK Facts proposal. The 2026 Defence Investment Plan sets the funded profile to 2029–30 and the 2025 Strategic Defence Review the priorities. Ranking readiness ahead of new announcements within that profile is a UK Facts proposal, not MOD policy.

    The evidence
    What the research found:
    The Defence Committee (January 2024) found warfighting readiness in doubt, with capability shortfalls, stockpile shortages and personnel lost faster than recruited. At March 2026, 16 of 39 rated MOD major projects were Red and 5 ratings were withheld. Trained strength was 122,230 in April 2026.
    Evaluated on:
    UK armed forces (Defence Committee inquiry); MOD major projects (NISTA ratings); United Kingdom, 2024–2026
    Our recommendation (separate from the research):
    Publish readiness proxies the MOD judges safe (trained strength against requirement, equipment availability bands, stock replenishment milestones) and fund those gaps before new programmes.
    Strongest counter-evidence:
    New capability takes a decade to field, so deferring orders to fund readiness now can leave gaps later; industrial capacity needs long, stable orders; some readiness data cannot be published.
    Effects on record
    • Forces able to deploy and sustain agreed commitments: Direction plausible; size not established. plausible spillover, limited confidence; United Kingdom. Readiness data are largely classified; public proxies are partial.
    Cost and funding

    Cost completeness: Published programme envelope; project costs still needed. Funding: Programme funding exists; project allocation unconfirmed.

    • Defence Investment Plan spending profile, 2026–27 to 2029–30 (departmental settlement) (recurring spending; paid by central government): £297.7bn in total, 2026–27 to 2029–30, cash (nominal) prices. UK Facts sum of the four published years (cash). It is the whole defence budget, not an allocation to readiness; it includes capital (£26.6bn rising to £34.5bn) and resource spending.
    • Trained people, maintenance, munitions and support for agreed commitments (recurring spending; paid by central government): Not yet costed. Not published, partly for security reasons. Full capability packages and sustainment must be costed, not just purchase prices.
    • Defence Investment Plan settlement, 2026–27 to 2029–30: £297.7bn, 2026–27 to 2029–30 — not committed (programme envelope, not a project award). The 3% (next Parliament) and 3.5% (2035) of GDP ambitions are not allocations.
    Who pays:
    Taxpayers through the MOD budget; trade-offs fall on other defence programmes or other public spending.
    Financing proposed:
    Reprioritisation within the Defence Investment Plan profile. Aspirational GDP targets (3% next Parliament; 3.5% by 2035) are not programme allocations.
    Gap remaining:
    Unknown: the cost of closing readiness gaps is not published, partly for security reasons.
    What delivery needs
    Skills:
    Trained personnel and instructors; engineers for maintenance.
    Operational capacity:
    Training pipelines and maintenance depots.
    Infrastructure:
    Munitions production and storage.
    Permissions:
    Export licensing and allied agreements for some supply.
    Law:
    None new.
    Public consent:
    Acceptance of trade-offs between new equipment and readiness.
    First step and stages

    First step: Identify the binding readiness gaps against agreed commitments and match them to funded lines in the investment plan. (owner: MOD (Chief of Defence Staff and Permanent Secretary))

    1. Near-term retention and maintenance actions — MOD and services (proposed stage, not an official timetable)
    2. Multi-year munitions and training contracts — MOD (Defence Equipment and Support) (proposed stage, not an official timetable)
    3. Publish readiness proxies each year — MOD; Defence Committee scrutiny (proposed stage, not an official timetable)

    Depends on: A23: contracts that deliver munitions and maintenance on time; Retention of trained personnel

    Trade-offs
    Who gains and who loses:
    Benefits are collective security; costs fall on taxpayers and on programmes delayed to fund readiness.
    What else the money or effort could do:
    Money for stocks and maintenance is not available for new platforms or other public spending.
    Strongest counterargument:
    Deterrence depends on future capability too; cutting new programmes may weaken industry and alliances.
    Risks:
    Industrial lead times, cost escalation, retention problems and limited public data.
    How we would judge it
    Baseline:
    Trained strength 122,230 (April 2026); 16 of 39 rated MOD major projects Red (March 2026).
    Leading indicator:
    Trained strength against requirement; munitions contract milestones.
    Outcome:
    Published readiness proxies and equipment availability, where disclosure is safe.
    Continue, adapt or stop:
    Revisit priorities if trained strength keeps falling or Red-rated projects do not move to Amber.
    Sources

    Source published February 2024 (Defence Committee); June 2026 (Defence Investment Plan); July 2026 (NISTA); evidence reviewed 2026-10-04. Reconsider if: A new Defence Committee readiness report; The next spending review sets defence beyond 2029–30; A new NISTA annual report.

  • Action 2A23Policy status: site-editorial action

    Buy measurable results and manage contracts through delivery

    Specify the outcome before tender, publish whole-life cost and milestones, and staff skilled contract management for the life of the contract.

    The thread: issue, evidence, action

    1. Issue Weakness: 16 of 39 rated MOD major projects were Red, against 34 of 172 rated across government; 5 MOD ratings were withheld. Also: threat
    2. Evidence MOD major projects rated Red
    3. Action A23, this action

    Assessment (draft, 6 October review)

    Who decides:
    Contracting authorities, the Cabinet Office (Government Commercial Function) and departments; the MOD for defence (UK)
    Evidence:
    Expert or audit recommendation. Consistent recommendations from research and audit; no evaluation estimates the savings or service effects.
    Expected effect:
    Direction plausible; size not established.
    Cost and funding

    Not yet costed

    Funding: Not yet costed / funding not identified

    Why it is shortlisted here: Equipment programmes are where MOD money most often fails to become capability on time.

    What it takes
    The problem

    Weak specification and thin contract-management capacity stop public purchases turning into the services and capabilities intended.

    Who is affected, and where

    Users of publicly contracted services and capabilities; suppliers, including small firms. Territory: UK. The Procurement Act 2023 applies to UK-wide and English bodies and Wales and Northern Ireland; Scotland largely keeps its own regime, not assessed here.

    Policy status

    UK Facts proposal. Builds on rules already in force: the Procurement Act 2023 (from 24 February 2025) requires KPIs and performance publication for larger contracts. Applying an outcome-and-milestone baseline to a named set of renewing contracts is a UK Facts proposal.

    The evidence
    What the research found:
    The Institute for Government finds government buys more than £400bn a year and that late commercial involvement, over-specified procurements, poor data and weak contract-management capacity block delivery. RUSI argues defence requirements should be set with budget and technical authority together. The NAO found the MOD’s 2023–2033 equipment plan £16.9bn over budget.
    Evaluated on:
    UK central government procurement (interviews); MOD equipment programmes (audit and commentary); United Kingdom, 2023–2026
    Our recommendation (separate from the research):
    Publish outcome, whole-life cost and milestones for a defined set of renewing contracts and report them through delivery; fund commercial staff from named budgets where justified.
    Strongest counter-evidence:
    More reporting can deter small suppliers and add cost; outcome contracts are hard to specify for complex services; social-value requirements complicate price comparison.
    Effects on record
    • Contracts delivering the specified service on time and near cost: Direction plausible; size not established. plausible spillover, limited confidence; United Kingdom. Recommended by research and audit; no evaluation estimates the effect.
    • Defence equipment programmes delivered closer to budget and schedule: Direction plausible; size not established. plausible spillover, limited confidence; United Kingdom. Audit and expert recommendations, not an evaluation: no source estimates how much better contract management would reduce overruns, and policy changes cause some of them.
    Cost and funding

    Cost completeness: Not yet costed. Funding: Not yet costed / funding not identified.

    • Commercial staff, contract oversight, transition, maintenance and supplier compliance (administration; paid by central government, councils): Not yet costed. Total procurement spending is not a fund or a savings base; no source estimates savings from better contract management.
    Who pays:
    Contracting authorities’ running budgets (commercial staff and oversight); suppliers bear compliance and reporting costs, partly passed back in prices.
    Financing proposed:
    From named procurement or programme budgets where a business case justifies it. Total procurement spending is a measure of buying, not a spare fund or a proven savings base.
    Gap remaining:
    Unknown: commercial capability has not been costed for any defined set of contracts.
    What delivery needs
    Skills:
    Commercial and contract-management professionals; technical specifiers.
    Operational capacity:
    Time for pre-market engagement and in-life management.
    Infrastructure:
    The central digital platform and contract data.
    Permissions:
    None.
    Law:
    Procurement Act 2023 duties already apply.
    Public consent:
    Suppliers willing to bid on outcome terms.
    First step and stages

    First step: Apply the approach to a defined set of renewing contracts and publish their baseline cost, outcome and milestones. (owner: Cabinet Office with lead departments (MOD for defence))

    1. Select renewing contracts and publish baselines — Cabinet Office, departments (proposed stage, not an official timetable)
    2. Design outcomes before tender — Contracting authorities (proposed stage, not an official timetable)
    3. Report milestones and outcomes through the contract — Contracting authorities; NAO (proposed stage, not an official timetable)

    Depends on: Procurement Act reporting data; A42 for innovation trials within the same rules

    Trade-offs
    Who gains and who loses:
    Service users gain if delivery improves; incumbent suppliers may lose; small firms gain or lose depending on reporting burden.
    What else the money or effort could do:
    Commercial staff are scarce; deploying them on these contracts leaves others less managed.
    Strongest counterargument:
    Procurement failures often stem from policy changes and unrealistic budgets, which better contract management cannot fix.
    Risks:
    Box-ticking reporting, supplier withdrawal and gaming of outcome measures.
    How we would judge it
    Baseline:
    Government major projects rated Red: 34 of 172 rated (NISTA, March 2026).
    Leading indicator:
    Share of renewing contracts with published outcomes, whole-life cost and milestones.
    Outcome:
    Delivery against milestones, change orders, late payment and supplier participation.
    Continue, adapt or stop:
    Expand where contracts meet milestones closer to cost than comparable contracts; drop measures that deter bidders without improving delivery.
    Earlier option on this page

    This card replaces the option “Realistic procurement and an affordable equipment plan” (operating). Its evidence: The NAO found the 2023–2033 Equipment Plan unaffordable by £16.9bn (central estimate), driven by nuclear and naval cost growth. Repeated NAO reports link over-commitment to delays and cost growth. National Audit Office, The Equipment Plan 2023 to 2033 (December 2023)

    Sources

    Source published September 2025 (IfG); July 2024 (RUSI); December 2023 (NAO); July 2026 (NISTA); evidence reviewed 2026-10-04. Reconsider if: First central publication of Procurement Act KPI data; A new NISTA annual report; An evaluation of outcome-based contracts.

    Also on: Follow the money, Public procurement — one shared record, so its cost is counted once.

How the options are assessed

One shared record per option — the same one the national plan reads. Delivery risk, gate and list membership are separate judgements.

  • Protect defence sustainment and retention through risk appraisal — Red delivery RAG; gate pending

Provisional single-reviewer assessments from the 6 October 2026 review; not approved business cases, and not government policy.

  • A26v2Delivery risk: RedGate: pending

    Protect defence sustainment and retention through risk appraisal

    A new scope of action A26 (A26v2); A26 itself is unchanged and nothing is inherited from it.

    Provisional single-reviewer desk assessment, 6 October 2026.

    Who and where
    Identify priority maintenance, stock and specialist-retention gaps through appropriately protected assurance. (from the 6 October review) Jurisdiction: not defined.
    Result so far
    Range if completed: 11.0–20.0 out of 30 (equal weights; not yet assessed: increment beyond baseline (Ad), expected incremental benefit (Bn), incremental affordability (Co))
    Funded now (baseline)
    Funded baseline not yet stated
    The change assessed (marginal)
    Identify priority maintenance, stock and specialist-retention gaps through appropriately protected assurance. (from the 6 October review)
    What the evidence supports—and the next decision

    Public expenditure and equipment counts cannot establish readiness. Some required evidence must be reviewed through protected assurance.

    AI-assisted analytical follow-up · 8 October 2026. Proposed appraisal design; the attributed scores below are unchanged. No funding or delivery agreement is implied.

    Define the change
    Identify a capability-specific maintenance, stock or specialist-retention gap against an agreed operational requirement.
    Test whether it works
    Availability, sustainment and trained-personnel retention against that requirement, with appropriately cleared independent challenge.
    Establish the cost
    Lifecycle equipment, spares, training, pay, infrastructure and supply-chain risk; compare alternatives and opportunity cost.
    Protect against harm
    Publish what can safely be scrutinised and record where classified evidence was reviewed; absence of public detail is not a zero benefit score.

    Read with the outcome evidence and sources in the full assessment. Monitoring proposals are not existing baseline measurements. A numerical benefit or cost score needs evidence for the defined increment, not just the scale of the problem.

    Full assessment of Protect defence sustainment and retention through risk appraisal: ten criteria, scenarios, delivery, costs and monitoring
    The ten criteria (0–3)

    Each criterion is scored 0 to 3 by the reviewer. “Not yet assessed” means unknown: it is never counted as zero.

    1. Scale and severity (Sc)3 of 3 — Severe harm across a broad population

      Reviewer’s reason: Problem scale judged from the linked domain evidence; not a population estimate of those helped.

    2. Increment beyond baseline (Ad)Not yet assessed

      Reviewer’s reason: Identify priority maintenance, stock and specialist-retention gaps through appropriately protected assurance. Incremental gap requires verification.

    3. Confidence in the proposed action (Ev)1 of 3 — Indirect, mixed, modelled or weak causal support

      Reviewer’s reason: Public audits establish concern; classified readiness prevents a reliable public effect estimate.

    4. Expected incremental benefit (Bn)Not yet assessed

      Reviewer’s reason: Unknown: no sufficiently supported magnitude for this exact change.

    5. Residual harms (Hm)1 of 3 — Material harm/unresolved mitigation

      Reviewer’s reason: Opportunity cost to other capability; classified data cannot be fabricated to complete a public score.

    6. Incremental affordability (Co)Not yet assessed

      Reviewer’s reason: Unknown: the proposed increment has not been costed and matched to an approved affordable allocation in this review. Existing programme envelopes are not that allocation.

    7. Delivery capacity (Ca)1 of 3 — Binding scarce resource

      Reviewer’s reason: Low public evidence does not imply defence is unimportant or exempt from scrutiny.

    8. Distribution (Fa)2 of 3 — Mixed or broadly neutral with safeguards

      Reviewer’s reason: Distribution assessed against the target group and the burdens described here: Opportunity cost to other capability; classified data cannot be fabricated to complete a public score.

    9. Meaningful first outcome (Ti)1 of 3 — More than three but less than ten years

      Reviewer’s reason: Timing judgement concerns the first meaningful outcome in: Appropriate readiness and retention assurance, with sensitive detail protected. It does not imply all long-term benefits arrive then.

    10. Readiness (Rd)2 of 3 — Named commissioning/allocation/coordination step

      Reviewer’s reason: Require a costed sustainment assessment alongside procurement commitments; publish only safe aggregate assurance. Owner: MOD, Treasury and parliamentary scrutiny bodies.

    Four weightings

    Normalised as 10 × weighted sum ÷ sum of weights, on a 0–30 scale. Where a criterion is not yet assessed, the range is the lowest and highest result if it were later scored 0 or 3 — not a score, a confidence interval or a rank.

    • Equal weights: Range if completed: 11.0–20.0 out of 30. Not yet assessed: increment beyond baseline (Ad), expected incremental benefit (Bn), incremental affordability (Co). Funding gate: not passed.
    • Evidence doubled: Range if completed: 10.9–19.1 out of 30. Not yet assessed: increment beyond baseline (Ad), expected incremental benefit (Bn), incremental affordability (Co). Funding gate: not passed.
    • Scale doubled: Range if completed: 12.7–20.9 out of 30. Not yet assessed: increment beyond baseline (Ad), expected incremental benefit (Bn), incremental affordability (Co). Funding gate: not passed.
    • Cost ignored (the funding gate still applies): Range if completed: 12.2–18.9 out of 30. Not yet assessed: increment beyond baseline (Ad), expected incremental benefit (Bn), incremental affordability (Co). Funding gate: not passed.

    Funding gate: Not passed — the cost is not yet assessed or no allocation is committed for this scope. Ignoring cost in a weighting never removes the gate.

    Delivery risk and gate

    Delivery risk shown: RedReview’s claim: Red. Best the recorded evidence allows: Red.

    Review’s reason: Opportunity cost to other capability; classified data cannot be fabricated to complete a public score. Low public evidence does not imply defence is unimportant or exempt from scrutiny.

    Why it is not Green yet

    • Delivery obstacle: Opportunity cost to other capability; classified data cannot be fabricated to complete a public score. Low public evidence does not imply defence is unimportant or exempt from scrutiny..
    • Scope (population, place and increment) not verified against the delivery baseline.
    • No verified owner with the powers in place.
    • Delivery capacity not verified.
    • Lifetime incremental costs not complete.
    • No credible funding (a committed allocation for the scope).
    • Safeguards not specified.
    • Monitoring lacks a metric, a data source or a baseline.

    Green needs verified scope, a verified owner with the powers, verified capacity, complete lifetime costs with credible funding, specified safeguards and monitoring with a metric, source and baseline. Amber means appraisal gaps remain; Red means a material delivery obstacle. Red does not mean unimportant.

    Gate: Pending — appraisal incomplete (review label: “Pending cost, funding, scope and capacity appraisal”).

    Why: Scores incomplete; Funding gate not passed (cost unknown or no credible funding).

    The gate is separate from national list membership: being listed does not make an option eligible, and an eligible option need not be listed.

    Cost and funding

    Lifetime costing: Not established.

    Still to cost: Incremental lifetime costs and funding not established. Low public evidence does not imply defence is unimportant or exempt from scrutiny.

    Funding status: not established in review.

    Owner, powers and capacity

    Proposed owner: MOD, Treasury and parliamentary scrutiny bodies. (proposed, unverified).

    Powers: needs a decision or allocation. Capacity: binding constraint.

    Powers and capacity read from the review’s Rd and Ca anchors; no proposed owner has agreed to act (the review: “Proposed owners have not agreed to act”).

    England:
    not assessed
    Scotland:
    not assessed
    Wales:
    not assessed
    Northern Ireland:
    not assessed

    Not defined in the review.

    Dependencies, safeguards and risks

    Depends on: Low public evidence does not imply defence is unimportant or exempt from scrutiny.

    Safeguards

    • Identify priority maintenance, stock and specialist-retention gaps through appropriately protected assurance (proposed, not yet specified)

    Risks and residual harms: Opportunity cost to other capability; classified data cannot be fabricated to complete a public score.

    Monitoring and measured results

    Metric: Appropriate readiness and retention assurance, with sensitive detail protected.

    Data source: Not yet named. Baseline: Not yet established.

    Measures already on the domain page

    A page measure is not necessarily the review’s metric; linking the two is an editorial decision still to be made.

    Evidence for the outcome

    Outcome: Appropriate readiness and retention assurance, with sensitive detail protected.

    Public audits establish concern; classified readiness prevents a reliable public effect estimate.

    Review record

    Assessment status: Provisional single-reviewer desk assessment, 6 October 2026.

    Reviewer: Original assessment author (name not supplied). Reviewed: 6 October 2026.

    Carried from the earlier domain review (C record): must be calibrated jointly with the G/W/E/NG/NW/NE records before any combined comparison.

    Decision route: Require a costed sustainment assessment alongside procurement commitments; publish only safe aggregate assurance.

    An editorial screening framework by one reviewer, not a formal appraisal or business case. Proposed owners have not agreed to act.

Decision brief

  • Tie the £11.1bn munitions budget to stockpile milestones that can be checked without revealing them

The leading option set out as a decision someone could take: who decides, who benefits, the best evidence, cost and funding, and the main trade-off. The full research record is one click away.

Decision briefPublic-policy proposalReviewed 2026-10-04

Tie the £11.1bn munitions budget to stockpile milestones that can be checked without revealing them

The thread: issue, evidence, action

  1. Issue Weakness: The February 2024 Defence Committee assessment found warfighting readiness in doubt: every service had capability shortfalls and stockpile shortages and was losing personnel faster than it recruited. Readiness data once published are now withheld. Also: weakness, opportunity, strength
  2. Evidence Full-time trained strength; UK regular forces (trained and untrained)
  3. Action Fund military readiness before counting new announcements
Decision required
The MOD sets classified stockpile and production milestones for the munitions in the Defence Investment Plan, has the NAO audit progress against them in private, and publishes safe proxies — contracts placed, factories opened and production lines running — each year.
Who and where
UK armed forces and the UK population they protect; allies relying on UK commitments. Applies in: UK.
Accountable body
Ministry of Defence
Intervention
Set staged stockpile and production milestones for the funded munitions, audited in private and summarised in public.
Best evidence, and where it applies
The Defence Committee found in 2024 that the forces had stockpile shortages and were losing personnel faster than they recruited; the 2026 Defence Investment Plan puts £11.1bn into weapons and munitions over four years.Studied in: UK armed forces (Evidence taken 2023).How closely the comparison transfers to this decision: European Union member states and Norway — partial.
Extra cost of this change
Capital: none identified in the brief.Recurring: NAO private audit and annual unclassified statement — not yet established.One-off or mixed: Weapons and Munitions line of the Defence Investment Plan (published plan figure, not a quote for closing a gap) — £11,100,000,000 four-year plan line; Cost of closing the specific stockpile gaps against commitments — Not yet costed.
Funding
Not funded yet: a possible funding route exists, but nothing is allocated to this change.Committed to this change: none.Possible source, not an award: Defence Investment Plan settlement, 2026–27 to 2029–30 (£297.7bn).Unfunded: Not knowable publicly: the plan names £11.1bn for weapons and munitions but does not say which stockpile gaps it closes, and some readiness and support costs sit outside the table.
Savings and wider benefits
Not yet specified: no cashable saving or avoided cost has been costed for this change. Expected outcomes are listed one by one in the research appendix and are never added together or counted as money available.
First 90-day step
MOD and NAO agree audit access and the MOD publishes the first unclassified munitions readiness statement (contracts placed, factories under construction, lines producing)The proposed first milestone; a 90-day date is not yet specified. Owner: Ministry of Defence. Proposed by UK Facts, not an official deadline.
Twelve-month milestone
Not yet specified.Time to a first useful result: The first annual statement after the plan’s first year; stock rebuilding itself takes years because of factory lead times.
Outcome, and when to scale or stop
Measure: Munitions contracts placed and factories under construction against the plan.Scale if: The NAO reports stocks and production moving in line with the classified milestones.Stop if: Not a stop decision: if milestones repeatedly slip, the plan should be re-sequenced and the Committee told why.
Main trade-off
Money and industrial capacity spent replenishing stocks now is not spent on new capabilities that take a decade to field.
Source and review date
Ready for War? (4 February 2024); The Defence Investment Plan (30 June 2026). Reviewed 2026-10-04.

An editorial proposal by UK Facts for discussion, not government policy. Records: A26 · effects E-A26-READINESS · costs C-A26-READINESS

Research appendix: study design, effect sizes and limits, alternatives, full costing, international comparisons and how we would know

1.The change, in plain words

Tie the £11.1bn munitions budget to stockpile milestones that can be checked without revealing them

2.The decision requested

Decision
Within the Defence Investment Plan’s Weapons and Munitions line, set classified stockpile targets and staged production milestones for the munitions named in the plan; agree NAO audit access; and publish an annual unclassified readiness statement with contract, factory and production proxies.
Accountable institution
Ministry of Defence
Geography
UK
Powers
Existing departmental budget authority within the settlement agreed with HM Treasury (Supply Estimates voted by Parliament). The NAO already receives classified briefings on capabilities omitted from the plan.
Delivery partners
Defence suppliers and energetics manufacturers; HM Treasury; National Audit Office; House of Commons Defence Committee; NATO (capability targets)

3.Who it is for, and what changes beyond today

Target population
UK armed forces and the UK population they protect; allies relying on UK commitments.
Eligibility
Munitions named in the Defence Investment Plan’s “always on” and key-munitions investments (for example CAMM, LMM, ASRAAM and NLAW) and the planned energetics factories.
Scale
The Weapons and Munitions line of the plan, 2026–27 to 2029–30; not the whole defence budget.
Baseline
Defence Committee (February 2024): stockpile shortages, stocks far below the level needed against the Russian Army, and personnel lost faster than recruited. Defence Investment Plan (June 2026): £11.1bn for weapons and munitions in 2026–27 to 2029–30; at least six new energetics factories by 2030. Personnel: 14,370 joined and 13,390 left the regular forces in the year to 31 March 2026; the MOD has not published a workforce requirement since April 2021. Stockpile levels are classified.

Source: House of Commons Defence Committee, Ready for War? (Summary p.3; paragraph 20); Ministry of Defence and HM Treasury, The Defence Investment Plan (Table 2 (p.24); paragraph 93 (p.53)); Ministry of Defence, Quarterly Service Personnel Statistics, 1 July 2026 (Intake and outflow; Table 3a note 11)

Change beyond existing law or funding
The budget line and the factory commitment already exist. What is missing is a staged link between the money and the stocks it buys, an independent check of that link that does not reveal stock levels, and a public statement each year. The change adds those three; it does not add money.

4.How it would work

Do: Set staged stockpile and production milestones for the funded munitions, audited in private and summarised in public Changing: so that orders, factory capacity and stocks move together and slippage is caught before stocks are needed

  • Forces able to sustain agreed commitments for longer with their own munitions

    Hypothesis to testEffect record E-A26-READINESS

    Readiness data are largely classified; public proxies are partial. No source estimates how much faster stocks rebuild with staged milestones.

  • Domestic production capacity available when demand surges

    Hypothesis to test

    Depends on suppliers keeping lines “always on”; measured publicly by factories opened and lines running.

Outcomes are kept separate and never added into one impact figure.

5.Best evidence

  • Ready for War?

    Author or institution:
    House of Commons Defence Committee
    Published:
    4 February 2024
    Evaluation period:
    Evidence taken 2023
    Design:
    Parliamentary inquiry (written and oral evidence)
    Sample or population:
    UK armed forces
    Effect and uncertainty:
    The forces “all have capability shortfalls and stockpile shortages, and are losing personnel faster than they can recruit them”; stockpiles were far below the level required to counter a threat from the Russian Army with certainty.
    Limits:
    A committee judgement from evidence, not a measured readiness index; it predates the 2025 review and the 2026 plan. Read from an archived copy because the committee site blocked access.

    Where: Summary (p.3); paragraph 20. Affiliation is provenance, not proof of quality.

  • The Defence Investment Plan

    Author or institution:
    Ministry of Defence and HM Treasury
    Published:
    30 June 2026
    Evaluation period:
    Plan for 2026–27 to 2029–30
    Design:
    Published investment plan
    Sample or population:
    Defence capital and resource programmes
    Effect and uncertainty:
    £11.1bn for weapons and munitions over four years; “always on” production of CAMM, LMM, ASRAAM and NLAW; up to six energetics factories. Some readiness and support costs are excluded from the table, and some sensitive capabilities are omitted and briefed to the NAO.
    Limits:
    A plan, not outturn; it does not say which stockpile gaps the money closes.

    Where: Table 2 and footnote 12 (p.24); paragraphs 10 and 93. Affiliation is provenance, not proof of quality.

6.Alternatives, counter-evidence and who loses

Closest feasible alternative
Keep the plan as published and rely on the existing equipment-plan and major-projects reporting.
Strongest counter-evidence
New capability takes a decade to field, so favouring stocks of current munitions can leave gaps later; industry needs long, stable orders; and some readiness information cannot safely be published at all.

Source: National Audit Office, The Equipment Plan 2023 to 2033 (Summary)

Distributional effects
Collective security benefits everyone; costs fall on taxpayers and on programmes delayed within the settlement. Factory jobs are concentrated where the energetics sites are built.
Main downside
Even an unclassified summary can reveal too much; publishing only proxies means the public must trust the NAO’s private audit for the real answer.

The options compared, including current policy

  • The proposal

    Staged, NAO-audited munitions milestones with an annual public statement

    Who is reached
    Armed forces; Parliament and the public through proxies
    Evidence
    Committee finding of stockpile shortages; plan budget line
    Likely outcome and timing
    First statement after one year; stocks over several years
    Cost and funding
    Within the existing £11.1bn line; audit time not costed
    Main trade-off
    Disclosure limited to proxies

  • Current policy

    Current approach: plan published, gaps and stocks classified, routine major-project reporting

    Who is reached
    Same forces; little public visibility
    Evidence
    Equipment and major-projects reports
    Likely outcome and timing
    Progress visible only through occasional committee inquiries
    Cost and funding
    Existing budgets
    Main trade-off
    No public link from money to stocks

  • Alternative

    Prioritise new capabilities over stock rebuilding within the settlement

    Who is reached
    Future force
    Evidence
    New capability takes a decade to field
    Likely outcome and timing
    Benefits in the 2030s
    Cost and funding
    Same settlement
    Main trade-off
    Thinner stocks now

7.What other countries or the devolved nations show

Country lesson · European Union member states and Norway, Regulation adopted July 2023; 31 projects selected March 2024; target date end of 2025

Paying to expand ammunition production in the EU

Evidence: Observational analysisPartial match: some conditions differ

What was changed
The Act in Support of Ammunition Production (ASAP) co-funded industrial projects to expand capacity for powder, explosives, shells and missiles, against a public target of 2 million artillery shells a year by the end of 2025.
Study design and population
Competitive grant selection with published capacity targets; results reported by the Commission. No control group and no independent evaluation. European ammunition and energetics manufacturers
Measured outcome there
Commission-reported: 31 projects, €513m of EU and Norwegian money leveraging about €1.4bn, adding over 10,000 tonnes of powder and 4,300 tonnes of explosives capacity; shell capacity reported at 1 million a year in January 2024. A Commissioner said in February 2026 that capacity exceeded 2 million a year; that figure is not audited.
Cost status
Programme budget known (€513m selected); total project investment about €1.4bn as reported; cost per tonne or per shell not published.
What failed or remains uncertain
Capacity is not stock: the programme reports what factories can make, not what was bought, stored or delivered. Results are self-reported and no European Court of Auditors audit was found.
Why the UK differs
The UK funds its own suppliers through the MOD budget rather than a multinational grant, and its munitions needs and stock levels are classified. A grant to industry is not the same as an order for munitions.
First change required here
Publish capacity and production milestones for the munitions and energetics factories in the Defence Investment Plan, with stock levels audited privately by the NAO rather than published.

Not a UK forecast: the effect above was measured in that place and population. Source: European Commission (DG DEFIS), Around €2 billion to strengthen EU’s defence industry readiness, including ramp-up of ammunition production to 2 million per year by end 2025 (ASAP selection) (Press release text). Reviewed 2026-10-04.

8.What delivery needs first

  • law — No new law; NAO access to classified stockpile data must be agreed with the MOD. (Requirement; owner: MOD and NAO)
  • infrastructure — Energetics factories and supplier production lines — the binding constraint on how fast stocks can be rebuilt. (Scarce resource shared with other priorities; owner: MOD with suppliers)
  • staff — Skilled munitions and energetics workers, and trained regular personnel to use the equipment. (Scarce resource shared with other priorities; owner: Suppliers; the services)
  • dependency — The Defence Investment Plan settlement holds; the 3.5% of GDP ambition for 2035 is not an allocation. (Genuine veto: nothing proceeds without it; owner: HM Treasury and MOD)

9.What it would cost

How the cost is built up: Munitions purchases and factory capital (within the £11.1bn line) + any sustainment and storage costs excluded from the table + NAO audit and reporting time. The gap cost itself is classified.

  • Weapons and Munitions line of the Defence Investment Plan (published plan figure, not a quote for closing a gap)

    Weapons and munitions, 2026–27 to 2029–30, cash

    £11,100,000,000 four-year plan line

    mixed; cash, as published June 2026 prices; 2026–27 to 2029–30; Current quoted cost

    Part of the whole defence settlement (C-DIP-2026-30); never add it to that total.

    Source: Ministry of Defence and HM Treasury, The Defence Investment Plan (Table 2 (p.24))

  • Cost of closing the specific stockpile gaps against commitments

    Binding munitions gaps identified by the MOD

    Not yet costed (ledger C-A26-READINESS)

    mixed; price year not stated; To 2029–30 and beyond; Not yet established

  • NAO private audit and annual unclassified statement

    One audit a year

    Not yet established per year

    recurring; price year not stated; Annual; Not yet established

10.Who pays, and what is missing

Programme envelope (a possible route, not an award)
Defence Investment Plan settlement, 2026–27 to 2029–30: £297.7bn, 2026–27 to 2029–30
Allocation committed to this change
None
Remaining gap
Not knowable publicly: the plan names £11.1bn for weapons and munitions but does not say which stockpile gaps it closes, and some readiness and support costs sit outside the table.
Proposed financing
Reprioritisation within the Defence Investment Plan settlement; the munitions line already exists. The staged milestones and audit are an administrative cost to the MOD and NAO.
Responsible payer
central government
Budget displaced
Other defence programmes within the settlement, if the milestones require more munitions spending than planned.

11.First milestone and time to a useful result

MOD and NAO agree audit access and the MOD publishes the first unclassified munitions readiness statement (contracts placed, factories under construction, lines producing) (Owner: Ministry of Defence. Proposed by UK Facts, not an official deadline.)

Time to first useful result: The first annual statement after the plan’s first year; stock rebuilding itself takes years because of factory lead times.

What could delay it: Energetics factories are delayed Suppliers cannot recruit skilled staff Cost escalation absorbs the line before stocks rise Operational use or donations draw stocks down

12.How we would know

Baseline
£11.1bn munitions line (2026–27 to 2029–30); stockpile levels classified; no published workforce requirement since 2021.
Comparison
The MOD’s own classified milestones (audited by the NAO); publicly, the plan’s stated factory and production commitments.
Leading indicator
Munitions contracts placed and factories under construction against the plan.
Follow-up
Annual statement; NAO report to the Defence Committee each year.
Continue if
The NAO reports stocks and production moving in line with the classified milestones.
Adapt if
Contracts are placed but production lags (an industrial constraint) or production rises but stocks do not (drawdown or donations).
Stop if
Not a stop decision: if milestones repeatedly slip, the plan should be re-sequenced and the Committee told why.
Thresholds
Not yet set: Any numerical milestone would be classified; publicly, only the plan’s own commitments (six factories by 2030) serve as markers.

What is not yet known, and how to find out

  • What closing the munitions gaps against commitments costs (cost)Next step: MOD to cost the gaps for the NAO in private, including storage and sustainment excluded from Table 2.Scope: Named munitions and energetics capacity · Data or quotes needed: Classified stock targets; supplier prices; sustainment costs · Who can estimate it: Ministry of Defence (audited by the NAO)
  • What the annual audit and statement would cost (cost)Next step: Ask the NAO to scope the audit with the MOD.Scope: One audit a year · Data or quotes needed: NAO staff days · Who can estimate it: National Audit Office
  • Whether staged milestones rebuild stocks faster than the current plan (effect)Next step: Compare audited stock trajectories with the plan in the NAO’s annual report.Defensible route: evaluation of existing delivery
  • The workforce requirement against which trained strength should be judged (data)Next step: Ask the MOD to publish a requirement or a safe proxy; until then, show intake and outflow without calling the position a shortfall.

Sources last checked 4 October 2026 · Owner: Evidence editor (James Harris) · Next check: MOD defence departmental resources: 2026 (3 December 2026, provisional) or the first trigger: Defence Investment Plan or munitions budget changes.

More decision briefs on other pages

What it would take

The order things have to happen in, who pays, and the effects and appraisals on record.

The order things have to happen in

  1. First, the prerequisite

    Identify binding readiness gaps against agreed commitments

    Owner: MOD (Chief of Defence Staff and Permanent Secretary)

    No date: the timing depends on the steps before it.

  2. Then, the decision

    Match gaps to funded lines in the investment plan; stage new equipment decisions

    Owner: MOD and HM Treasury

    No date: the timing depends on the steps before it.

  3. Then, delivery

    Multi-year munitions, maintenance and training contracts managed to milestones

    Owner: Defence Equipment and Support; suppliers

    No date: the timing depends on the steps before it.

  4. Finally, the measured outcome

    Trained strength, published readiness proxies and project ratings

    Owner: MOD statistics; NISTA; Defence Committee

    No date: the timing depends on the steps before it.

Who pays, and what is still missing

Cost, committed funding and the remaining gap for the same scope and years. A programme envelope is not an award to a project; a proposal is not committed money. No total is shown because these costs are on different bases or periods and cannot be added.

Cost and funding ledger

  • Defence Investment Plan spending profile, 2026–27 to 2029–30 (departmental settlement)

    A26 · recurring spending · published programme envelope

    Amount
    £297.7bn in total, 2026–27 to 2029–30, cash (nominal) prices
    Who pays
    central government
    Committed
    None identified
    Proposed, not committed
    £297.7bn (Defence Investment Plan settlement, 2026–27 to 2029–30)
    Gap
    Not established

  • Trained people, maintenance, munitions and support for agreed commitments

    A26 · recurring spending · not costed

    Amount
    Not yet costed
    Who pays
    central government
    Committed
    None identified
    Proposed, not committed
    —
    Gap
    Not established

  • Commercial staff, contract oversight, transition, maintenance and supplier compliance

    A23 · administration · not costed

    Amount
    Not yet costed
    Who pays
    central government, councils
    Committed
    None identified
    Proposed, not committed
    —
    Gap
    Not established

“Not yet costed” means no defensible cost has been found — not that the action is free. Lifetime benefits, benefit-cost ratios and forecast savings are never shown here as money available to spend.

Effects on record, with evidence ratings (3 records)

What the evidence says each action changes

Effects on record — these measure different outcomes, so they are not drawn on one scale
ActionOutcome and areaEffectCompared withEvidence
Buy measurable results and manage contracts through deliveryContracts delivering the specified service on time and near cost Public service deliveryDirection plausible; size not established—plausible spillover; limited confidence; United KingdomRecommended by research and audit; no evaluation estimates the effect.
Fund military readiness before counting new announcementsForces able to deploy and sustain agreed commitments Defence and securityDirection plausible; size not established—plausible spillover; limited confidence; United KingdomReadiness data are largely classified; public proxies are partial.
Buy measurable results and manage contracts through deliveryDefence equipment programmes delivered closer to budget and schedule Defence and securityDirection plausible; size not established—plausible spillover; limited confidence; United KingdomAudit and expert recommendations, not an evaluation: no source estimates how much better contract management would reduce overruns, and policy changes cause some of them.

How we would know

UK regular forces (trained and untrained); Full-time trained strength; MOD major projects rated Red.

The outcome measures to watch. A baseline is where we start, not a target; where there is no official target we say so.

Measured results

What each option would be judged on, and the latest value of the measures already on this page. A measure moving is not proof that an option caused it.

Where the ideas come from

Research, counter-evidence and methods (12 sources; 1 claim held back)
  • Defence Departmental Resources 2025 (Worksheet 1: Defence Expenditure Outturn) — Ministry of Defence, 15 January 2026.Accredited official statistics; United Kingdom. Relevant passages checked, 2026-10-10.
  • The Defence Investment Plan — Ministry of Defence and HM Treasury, 2026-06-30.Government spending plan; United Kingdom. Relevant passages checked, 2026-10-04. Limits: A departmental settlement, not an allocation to any readiness package; cash terms, so not comparable with real-terms outturn.
  • The Strategic Defence Review 2025 — Ministry of Defence, 2025-06-02.Government review; United Kingdom. Relevant passages checked, 2026-10-21.
  • MoD follow-up Spring 2026 — Public Accounts Committee, 2026-06-07.Parliamentary scrutiny; United Kingdom. Relevant passages checked, 2026-10-11. Limits: Dated scrutiny of nuclear cost transparency; not a current readiness measurement. Later accounts have a clean audit opinion.
  • Ministry of Defence Accounts 2025–26 — National Audit Office, 2026-07-15.Audit opinion; United Kingdom. Relevant passages checked, 2026-10-11. Limits: Financial statements and regularity opinion, not a capability or value-for-money assessment.
  • Armed Forces Continuous Attitude Survey — Ministry of Defence, 2026-05-28.Accredited official statistics; United Kingdom. Relevant passages checked, 2026-10-10. Limits: Self-reported intention, not observed departures. Question-specific base and non-response limitations.
  • Quarterly Service Personnel Statistics, 1 July 2026 — Ministry of Defence, 23 September 2026.Official statistics; United Kingdom. Relevant passages checked, 2026-10-10. Limits: The Army’s trained-strength definition changed in October 2016, so trained strength before then is not comparable.
  • NISTA Major Projects Annual Report 2025–26 (ratings at 31 March 2026) — National Infrastructure and Service Transformation Authority, 2026-07-13.Official transparency data; United Kingdom. Relevant passages checked, 2026-10-04. Limits: A delivery-confidence rating is a judgement about a project’s prospects, not a measure of military readiness or of value for money.
  • Ready for War? — House of Commons Defence Committee, 2024-02-04.Select committee report; United Kingdom. Relevant passages checked (read from an Internet Archive copy), 2026-10-04. Limits: January 2024 assessment, before the 2025 review and 2026 investment plan; detailed availability data are classified.
  • Procurement Reform Starts with Requirement Formulation and the Supply Chain — Royal United Services Institute (Sir Julian Brazier, Ryan Shea), 2024-07-29.Expert commentary; United Kingdom (Ministry of Defence). Full text checked, 2026-10-04. Limits: Commentary with anecdotal examples; predates the 2025 Strategic Defence Review and the 2026 Defence Investment Plan. One author is a former defence minister.
  • The Equipment Plan 2023 to 2033 — National Audit Office, 2023-12.Public audit; United Kingdom. Relevant passages checked, 2026-10-04. Limits: Predates the 2025 Strategic Defence Review and 2026 Defence Investment Plan; the MOD stopped publishing an equipment plan after this edition.
  • The role of procurement in delivering mission-led government — Institute for Government (Ben Paxton, Nick Davies), 2025-09-23.Interview-based analysis with recommendations; United Kingdom (mainly central government). Relevant passages checked, 2026-10-04. Limits: Qualitative: no estimate of savings or service effects. It does not contain a £461bn figure — the site’s £461.3bn whole-public-sector total comes from PESA 2026 (P-HMT-PESA-2026).

Counter-evidence and criticism

  • Fund military readiness before counting new announcements: New capability takes a decade to field, so deferring orders to fund readiness now can leave gaps later; industrial capacity needs long, stable orders; some readiness data cannot be published. (National Audit Office)
  • Buy measurable results and manage contracts through delivery: More reporting can deter small suppliers and add cost; outcome contracts are hard to specify for complex services; social-value requirements complicate price comparison. (Institute for Government)

Claims held back

  • Current readiness levels by service or capability — Detailed availability and readiness data are classified; the 2024 assessment cannot establish current whole-force readiness. Needed: A newer Defence Committee or NAO readiness assessment, or MOD-published readiness proxies.

“Full text checked” means we read the report itself; “relevant passages” means the sections behind each figure; “summary or abstract only” means we could not read the full study, so no number from it is published here without another source.

Other options compared — not on the shortlist (3)

Other options compared

Options from earlier work on this page that are not on the shortlist. They remain valid choices; their evidence is shown as before.

  • capacityStatus: operating

    Keep trained people

    Aims to:
    Higher trained strength through lower outflow, especially in specialist trades.
    How:
    More flexible careers, pay and accommodation that make people stay longer.
    Who decides:
    MOD and the single services; HM Treasury (pay).
    Main constraint:
    Competition from civilian employers for engineers and cyber specialists.
    Evidence:
    Limited evidence — plausible mechanism, little direct evaluation
    See the trade-offs and evidence
    What the evidence shows
    The Haythornthwaite review recommended incentives and career flexibility; MOD is implementing parts of it. There is no published evaluation yet of their effect on retention.
    Resources
    Pay, housing, training pipelines.
    Consent and decisions needed
    Broad support; costs compete with equipment.
    Time
    Monitor quarterly outflow and annual survey results; no evaluated implementation timetable is established here.
    Cost and yield
    No single official costing is cited here.
    Trade-offs and who pays
    Money spent on people is not available for equipment.
    How we would know it worked
    Leading indicator: Outflow rates and voluntary release applications. Outcome: Trained strength by service. It would not be working if: Outflow stays high despite incentives.
  • structuralStatus: proposed

    Stable, long-term orders for industry

    Aims to:
    Faster production and replenishment of munitions and equipment.
    How:
    Multi-year contracts let firms invest in workforce, tooling and stock.
    Who decides:
    MOD (Defence Equipment and Support), suppliers.
    Main constraint:
    Supply chains for energetics and components; export competition.
    Evidence:
    Limited evidence — plausible mechanism, little direct evaluation
    See the trade-offs and evidence
    What the evidence shows
    Plausible and widely recommended since the war in Ukraine exposed low stocks; there is little UK evaluation of how fast capacity responds to longer contracts.
    Policy status
    DIP allocations support related activity; funding for this specific proposed mechanism is not separately established.
    Resources
    Capital budget; skilled manufacturing workforce.
    Consent and decisions needed
    Long contracts lock in spending choices.
    Time
    Several years to expand production lines.
    Cost and yield
    Programme-specific; allocations do not establish the incremental cost of this option.
    Trade-offs and who pays
    Commitment reduces flexibility to change priorities.
    How we would know it worked
    Leading indicator: Contracts let and production rates. Outcome: Stock levels and delivery times (where published). It would not be working if: Orders placed but delivery times do not shorten.
  • capacityStatus: proposed

    Stockpiles, maintenance and sustainment

    Aims to:
    Forces able to sustain operations against defined requirements.
    How:
    Investment in spares, munitions and maintenance raises the share of equipment that is usable.
    Who decides:
    MOD and the services.
    Main constraint:
    Industrial capacity; storage.
    Evidence:
    Limited evidence — plausible mechanism, little direct evaluation
    See the trade-offs and evidence
    What the evidence shows
    The Defence Committee found warfighting readiness "in doubt" in 2024, citing stocks and sustainment; detailed availability data are classified.
    Policy status
    Related investment is allocated in the DIP; this option is not a separately approved national programme.
    Resources
    Munitions, spares, maintenance staff and facilities.
    Consent and decisions needed
    Generally supported.
    Time
    Programme-dependent; no independently appraised timetable is recorded here.
    Cost and yield
    Within planned budgets; not separately costed in public.
    Trade-offs and who pays
    Sustainment spending is less visible than new equipment.
    How we would know it worked
    Leading indicator: Munitions contracts and deliveries (where published). Outcome: Equipment availability (largely unpublished). It would not be working if: Public scrutiny continues to find sustainment shortfalls.
The options side by side
OptionResourcesTimeEvidenceOutcome to watch
Keep trained peoplePay, housing, training pipelines.Monitor quarterly outflow and annual survey results; no evaluated implementation timetable is established here.limitedTrained strength by service.
Stable, long-term orders for industryCapital budget; skilled manufacturing workforce.Several years to expand production lines.limitedStock levels and delivery times (where published).
Stockpiles, maintenance and sustainmentMunitions, spares, maintenance staff and facilities.Programme-dependent; no independently appraised timetable is recorded here.limitedEquipment availability (largely unpublished).

Plan reviewed 2026-10-10. How we judge evidence.