Ajax Programme

Debate between Ben Obese-Jecty and Stuart Anderson

Wednesday 14th January 2026 Westminster Hall

[Ben Obese-Jecty (Huntingdon) (Con)]

I beg to move,

That this House has considered the future of the Ajax Programme.

It is a pleasure to serve under your chairship, Mr Stuart. This debate has been a long time coming. Such is the Kafkaesque procedure for selecting debates that this application was granted only at the eighth time of asking; I had first requested a debate on this subject on 1 September 2025—over four months ago. Since then, the Ajax programme has gone from on track to throwing a track, and the outlook for the programme and our armoured capability, the future of armoured infantry as a concept and the current deployability of 3rd (UK) Division are now all very much under the microscope.

In this debate, I am not seeking to apportion blame, point fingers at individuals or orchestrate a witch hunt. It is clear that the Ajax programme has been failing for a number of years, although I will go on to question some of the recent specific decision making regarding the programme. Accountability sits with successive Ministers. The slow progress on delivery appears to be an issue between the Army, the Department and General Dynamics.

We can skip over the potted history of the Ajax programme—others will cover that—but, to paraphrase Rodgers and Hammerstein, “How do you solve a problem like Ajax?” Although it was based on an existing General Dynamics platform, the Army made so many additions and revisions to the existing capability that it is now considered to be bespoke technology. We are talking about a staggering 1,200 capability requirements for each of the six vehicle types under the Ajax umbrella.

The March 2022 National Audit Office report on the Ajax programme details the fact that neither the Department nor General Dynamics fully understood some component specifications or how they would be integrated on to the Ajax vehicle, leading to consequential changes to the overall design, disputes between the Ministry of Defence and General Dynamics and, inevitably, programme delays. Both the MOD and General Dynamics have been criticised for underestimating the scale of the work, the technical challenge and the sequencing of the work. General Dynamics blamed the MOD for not having fully defined acceptance criteria; the MOD blamed the General Dynamics safety documentation. The contingency within the programme was quickly used up and the programme was suddenly four years behind schedule.

Noise and vibration issues were recognised in mid-2020, with a stop notice issued in June 2021. All dynamic movement and transition activity was halted while the programme underwent a significant reset. The Army resumed training on Ajax in 2023, but paused again in November 2025. The programme’s issues from 2020 to 2021 are well documented. Those issues are a failure to establish effective governance, complex assurance arrangements, high turnover of senior staff, an ineffective programme board, weak project controls—the list goes on. The most stark, however, was

“an over-emphasis on achieving its IOC”—

initial operating capability—

“target date, which meant that it prioritised time and cost over capability. As a result, it pressed ahead with the programme without resolving performance issues.”

Given what we know now and the issues encountered less than three weeks after IOC was declared, I would like to hear an assessment from the Minister as to whether he believes that that is still an issue today.

Initial operating capability for the Ajax programme was declared on 5 November 2025 by the Government; I stress “by the Government”, because several stages to that process were not made public until last month. The Minister for Defence Readiness and Industry confirmed to me:

“All criteria for Ajax Initial Operating Capability…were met on 23 July 2025 and following a period of review, IOC was declared by the Army on 15 September 2025.”

We know that only because it was written on a cake in a General Dynamics promotional video of the Minister’s visit to Merthyr Tydfil. Additionally, he confirmed:

“Before declaring Initial Operating Capability, I received written assurances from the Chief of the General Staff and the acting NAD”—

national armaments director—

“that the vehicle was safe to operate. Within the letter note AJAX the vehicle was described as ‘demonstrably safe to operate’.”

The Minister added that

“prior to Ajax Initial Operating Capability being announced, I sought assurances in writing from the Chief of the Defence Staff and the National Armaments Director that the system was safe to operate, which I received.”

[Stuart Anderson (South Shropshire) (Con)]

I thank my hon. Friend for initiating this important debate. Does he agree with me that it is important for the Minister to set out that in 2022 I and colleagues on the Defence Committee went to Merthyr Tydfil, did a review and clearly stated that IOC was nowhere near deliverable in the timeframes proposed? Does my hon. Friend think it is worth the Minister setting out what checks against the Defence Committee report were done when looking at IOC?

[Ben Obese-Jecty]

I thank my hon. Friend for that excellent point. I was not going to cover it in my speech, so it is definitely worth adding to the record for the Minister to address in his response.

The interim National Armaments Director, the new National Armaments Director, the Chief of the General Staff and the Chief of the Defence Staff represent our most senior leaders within defence. It is hard to believe that they all would have signed off a vehicle platform that was inherently unsafe or where it was a sketchy 50:50 decision. How did we reach a point where four-star senior officers and equivalents had the confidence to sign off the vehicle’s initial operating capability, which then received ministerial approval, only for it to blow up in everybody’s face weeks later like a Wile E. Coyote Road Runner trap?

The March 2022 National Audit Office report states:

“The Department believes that the contract also incentivised GDLS-UK to prioritise production milestones over the quality and performance of the capability.”

It goes on:

“The contract incentivised GDLS-UK to achieve production milestones resulting in it continuing to manufacture vehicles while technical issues remained unresolved.”

Can the Minister give any clarity on whether that is still the case today, given that General Dynamics signed off achieving all the criteria required to meet initial operating capability, only for the entire programme to collapse less than four months later? Initial operating capability was also signed off by the Army on 15 September, before ministerial sign-off was granted on 5 November.

Last year, the then Minister for Defence Procurement and Industry stated that

“The Armoured Cavalry Programme (Ajax) is projecting the delivery of over 180 operationally deployable platforms by the end of 2025.”

Despite the various travails of the Ajax programme, production has continued throughout the training pause. As a result, we know that the Army has received just under a third of all Ajax platforms across all variants. It should be noted that the 2022 National Audit Office report highlighted that the compressed programme schedule flagged that there would no longer be time to validate the design of capability drops 3 and 4 before manufacture. Given that we are now in capability drop 3, can the Minister confirm whether the designs were validated before these vehicles were assembled and delivered last year?

The Minister also confirmed that

“It is anticipated that a further 110 platforms will be delivered in 2026, with the remaining 297 platforms delivered by 2028.”

With 180 Ajax platforms delivered, a similar number still to be accepted by the Army and all 589 hulls having now been completed in Spain, on current timelines the complete production run will have been completed by mid-2027. I believe that includes bringing all vehicles up to capability drop 4 standard.

Assuming that any resolution to the current training pause does not involve the mother of all factory recalls, there could potentially be an idle factory in Wales. What plans are there for the Merthyr Tydfil factory beyond the middle of next year? With only 18 months’ work left to complete, can the Minister assure General Dynamics employees in Wales that they will have a job once Ajax production is complete? Can he assure those employees that there will be no redundancies, given that we have no plans to purchase any more vehicles and that export plans are yet to materialise? While I appreciate that UK Defence and Security Exports sit within the Department for Business and Trade, can the Minister confirm what progress UKDSE has made regarding any potential export sales?

One of the main reasons why we are debating this topic today, and the reason for such media interest, is the social media content that has emerged from the factory and from Army personnel regarding the workmanship on the vehicles. To that end, I would like to recognise the efforts of Alfie Usher, aka Fill Your Boots, who has been instrumental in putting heat and light on this issue on behalf of service personnel. For obvious reasons, I am no trade unionist, but he has been the unofficial secretary-general of the unofficial armed forces union for some time.

I know that the Armed Forces Minister has previously liaised with Alfie on issues, and—I say this only partially in jest—perhaps the Government should reconsider his application to be the Armed Forces Commissioner. The Government are struggling to fill the role. Alfie’s application got binned back in August, but he has been doing the job unpaid since then anyway.

For those who do not follow Alfie’s account—any politician with an interest in defence really should—I should say that between the exposés and topical memes, Alfie has been the bête noire of General Dynamics and the Army, operating as chief whistleblower and ensuring that the voice of those on the ground can be heard. There have been multiple examples of concerns shared by him via social media on behalf of service personnel tasked with prepping newly delivered vehicles. A variety of issues have been highlighted and I ask the Minister, if he has not done so already, to include Alfie within the scope of the ministerial-led review to ensure full transparency and the inclusion of service personnel. They are the end users of this vehicle, and too often we ask our personnel to put up and shut up. An organisation that dines out on moral courage and pretends that it values 360° feedback should make sure that it listens to our soldiers, irrespective of how refreshingly blunt their views might be.

The evidence shown by Fill Your Boots has put heat and light on the production and assembly issues upon which blame has been placed. During the first pause in 2021, the MOD and General Dynamics did not agree on whether the levels of noise and vibration of Ajax vehicles breached contractual requirements. Given that the same noise and vibration issues potentially remain unresolved six years later, can the Minister clarify what does constitute a contractual breach?

Through 2020-21, General Dynamics undertook a supposedly in-depth review of the Ajax programme to confirm the root cause of noise and vibration issues, identify solutions and then validate them through extensive testing. They identified that noise and vibration issues were caused by the track, suspension and running gear; the engine and its mounting in the vehicle; quality issues including bolting, cable routing and welding; and performance and integration of crew headsets. The vehicles were thoroughly assessed using a noise and vibration calculator, whatever that is, to determine

“the safe operating envelopes for the platform across different speeds and terrains.”

The noise and vibration calculator provided by General Dynamics did not measure noise and vibration, which the Defence Science and Technology Laboratory raised concerns about. It estimated the maximum safe exposure time on Ajax vehicles for given conditions based on measurements from early trials. In August 2020, the first noise-induced hearing loss symptoms were reported by soldiers. In September 2020, DSTL discovered an error in General Dynamics’ measurements, which meant that vehicle crews might have been overexposed to noise and vibration. The Minister for Defence Readiness and Industry has told me:

“Whole Body and Hand Arm Vibration Levels were well understood, and effective mitigations were in place.”

But they cannot have been effective, or why would personnel still be suffering from noise and vibration-related sickness? Will the Minister confirm that any analysis of the root cause of the current noise and vibration sickness does not use the General Dynamics noise and vibration calculator, and instead seeks to use a metric that does not raise concerns with DSTL?

The measures implemented by General Dynamics included the implementation of an effective hearing protection and combined communication system, an improvement to the overall Ajax build quality, a review and amendment of build tolerances for key crew interfaces, changes to seat structures to provide greater vibration attenuation—that sounds very much like new seat cushions—and improvements to track tensioning procedures to ensure correct track tension, which reduces vibration.

On the track tension, I am aware that composite rubber tracks are now mature enough to be viable for a vehicle the weight of Ajax. Although there are still issues regarding track replacement, given that the whole track has to be replaced rather than a single track link, I note that the General Dynamics Ajax Blackjax demonstrator vehicle at DSEI had this fitted. I ask the Minister what assessment his Department has made of the feasibility of switching to composite rubber tracks as a potential solution going forward?

The 2022 National Audit Office report outlined that there were 27 limitations of use on Ajax vehicles in September 2021; 22 were safety-related and 11 were critical to achieving IOC. Can the Minister give the House assurances that those 11 limitations were resolved prior to initial operating capability being declared in 2025? Could the Minister also confirm what contractual payments were made to General Dynamics on the achievement of the criteria for initial operating capability in July 2025 or the formal declaration of initial operating capability on 5 November 2025? What is the total amount paid to General Dynamics as of today, and how much still remains to be paid? What delivery milestone will trigger the remaining payments?

With those resolutions to the previous issues identified in mind, we know that three exercises took place between IOC criteria being achieved on 23 July and ministerial IOC declaration on 5 November. We have not heard of any instances of noise and vibration sickness occurring among vehicle crews during those three exercises. Will the Minister confirm that there were no noise and vibration sickness issues among crews during those three exercises?

I asked the Minister for Defence Readiness and Industry what discussions his Department had had with General Dynamics, the senior responsible officer and the British Army regarding the Ajax programme between 23 July and Exercise Titan Storm in late November. Instead of a response, the Minister told me:

“I have directed a Ministerial review that covers elements of his question. I will update the House in due course.”

The Minister was happy to tell me that he met with key stakeholders, including meeting General Dynamics after the programme was paused, but, much as I have tried, the Government have scrupulously avoided disclosing any information about what ministerial discussions have taken place with stakeholders between 23 July and 5 November.

On 1 January, I asked a named day question for answer on 7 January 2026. I asked:

“how many noise and vibration injuries were sustained…between 23 July 2025 and Exercise Titan Storm”.

Strangely, I have not received a response yet, a week after one was due—it is almost as if this is an issue that the Government do not want to disclose. Will the Minister clarify the answer to written question 101920 and put on the record how many noise and vibration injuries were sustained between the achievement of initial operating capability criteria by General Dynamics and the start of Exercise Titan Storm?

The March 2022 National Audit Office Report states that the Department

“knew of noise and vibration issues before soldiers reported injuries but was not aware of the severity of potential problems. Reporting of issues identified in trials was limited and slow, meaning that safety concerns were not shared or escalated by the Army or…DE&S”.

Has that culture been addressed? Concerns were first raised about noise and vibration by the Army trials team in late 2019, but did not appear in quarterly programme reports until March 2021. To what extent have we seen the same issue repeat itself last summer?

In December 2025, the Minister for Defence Readiness and Industry confirmed to me that

“Of the 61 vehicles of all AJAX types involved in the exercise, 23 AJAX Vehicles were linked to soldiers suffering from noise or vibration injury.”

I would be grateful if the Minister confirmed where those 61 affected vehicles were manufactured. Were they part of the first 100 Ajax vehicles manufactured and assembled in Spain, or were they later vehicles whose hulls were manufactured in Spain but were assembled at the Merthyr Tydfil facility? Can he also confirm whether the early production vehicles from capability drop 0 to 2, which were identified as not being fully compliant with requirements, have now been retrofitted and what capability drop are they currently equipped to?

The Minister also confirmed that

“On 22 November…during a routine training exercise, around 30 soldiers operating in Ajax reported being affected by noise and vibration exposure.”

For 30 soldiers to be affected by the same noise and vibration sickness, with identical symptoms, as a result of a known issue supposedly resolved by 2023 is simply unacceptable. It is incredibly important that we are able to understand whether there were any instances during the three exercises prior to Titan Storm and indeed to identify whether there have been any instances of General Dynamics employees affected by noise and vibration exposure during the same period, prior to or after the 23 July IOC criteria achievement milestone.

In November, I asked the Minister for Defence Readiness and Industry how many compensation claims related to noise and vibration symptoms incurred during the use of Ajax variants had been made since the start of the armoured cavalry programme. The Minister informed me that it would take time to collate and review the information needed to answer the question, and that he would write to me. It is now mid-January and I would appreciate it if the Minister could provide that information in his response. It should not take two months to work out how many compensation claims have been made relating to Ajax. If I were Minister, I would have a close eye on the running tally, particularly in preparation for this debate.

On 8 December the Minister confirmed:

“We are currently undertaking reviews into the medical injuries sustained by Ajax crews, and more details on the findings will be published in due course.”

Will the ministerial-led review he has commissioned or the report from the Defence Accident Investigation Branch contain the details of those findings? In that review, will he confirm how many service personnel are undergoing treatment or have been diagnosed with hearing loss following audiometry protocols after operating within an Ajax variant?

Regarding when the vehicles will be able to recommence training, any decisions on the pause are to be made by Ministers after the investigations by the Defence Accident Investigation Branch have concluded. That suggests that the pause will be lifted after the investigation but before the conclusion of the ministerial-led review. Will the Minister clarify the timeline for the investigation, which he previously stated would take at least two weeks and so should be approaching conclusion, and the ministerial-led review, for which we are yet to see the terms of reference, which were due before Christmas? I appreciate it will still be autumn until the defence investment plan is published in March. Will the pause on the use of Ajax be lifted before the conclusion of the Minister’s review, given that the noise and vibration issues may not have been identified, let alone resolved?

This debate is about the future of the Ajax programme. Although the near future revolves around the resolution of the immediate issues that followed Exercise Titan Storm, beyond that the programme will need to achieve full operating capability, but crucially, it will be the tip of the spear in our armoured doctrine. So, a good start would be to have an armoured doctrine that is coherent.

In 2014, we ordered 589 vehicles out of an optional 1,328—below the Army’s required fleet size at the time of 686. Although that was not necessarily a defining error at the time, subsequent decisions, even as recently as last summer, have compounded the issue, bringing us to a situation where our armoured fleet is now completely unbalanced—increasingly so given the evolution of modern conflict since the Russian invasion of Ukraine, the ubiquity of drones at all levels, and the current global arms race.

When Ajax was commissioned, we were still undertaking combat operations in Afghanistan. Since then, we have had multiple defence reviews, and changed our focus to the Indo-Pacific and now to the High North, and now we are talking about putting troops in eastern Europe as a deterrent to a belligerent Russia. The irony is that we still have much of the same armour designed to do that job the first time round.

The original plan was for Ajax, alongside Boxer and Challenger 3, to provide the backbone of the Army’s armoured capability within Integrated Force 2030. March 2021’s “Defence in a Competitive Age” outlines how the Army would use Ajax in its two close-combat armoured brigade combat teams, and as part of its deep reconnaissance strike brigade combat team—formations that are now putatively in place.

We cannot discuss the future of the Ajax programme without discussing how the Army plans to use Ajax within those brigade combat teams. As somebody with a background in armoured infantry, who formerly held an admittedly niche specialisation in anti-tanks, I have more than a keen interest in the future of our armoured capability. Being something of a tank-spotter, I note some glaring capability gaps based on the information provided by Ministers over the past year or so.

Let us start with the basics. In December 2024, the right hon. Member for Liverpool Garston (Maria Eagle), the then Minister of State for Defence Procurement and Industry, stated in a written answer to my question:

“On current plans, Boxer will be delivered to four Heavy Mechanised Infantry Battalions and Divisional Enablers.”

Seven months later, however, on 15 July, she stated:

“The Army intends to reorganise its Heavy Forces units in 3 Division, such that all four would become Armoured Infantry Units based on the Ajax and Boxer family of vehicles.”

She subsequently went on to state:

“The Army intends to equip the Regular Infantry Units within 3 (UK) Division with Ares in the infantry troop carrying role: 1 Mercian, 1 Royal Regiment of Fusiliers, 1 Royal Welsh and 5 Rifles.”

What happened between December 2024 and July 2025 that saw such a fundamental change to the future of the infantry, and indeed our entire armoured capability? The number of Ares platforms to be provided has not changed since 2014: just 93. For reference, the current land equipment table shows that we currently have 604 Warrior. Ares’s role was originally “protected mobility reconnaissance support” and latterly to “deliver and support specialist troops”. It has never once been earmarked as an infantry-fighting vehicle.

The present Minister for Defence Readiness and Industry, the hon. Member for Plymouth Sutton and Devonport (Luke Pollard), then gave this written response to my question:

“The Ares variant of Ajax is designed for mounted close combat and is being delivered to the Field Army. The decision to field Ares with Infantry Battalions was taken after a considerable assessment programme.”

I would be interested to know whether the aim of the Ares assessment programme was simply to justify the existing total of 589 vehicles, or actually to highlight the capability required, because whichever question the Army asks, the answer always appears to be 589 Ajax vehicles. I asked to see the outcome of that assessment programme but was told that its disclosure would

“be likely to prejudice the capability, effectiveness or security of the Armed Forces”.

I suggest that, given the enemy knows that Ares does not have any armour-defeating weapons capability, the issue around prejudicing capability lies elsewhere.

Let’s walk that back a step. In my opinion, the Ares variant is not designed for mounted close combat. It is equipped with a remote weapon station that can mount a 50-calibre machine gun at the heaviest. As someone whose specialisation in the Army was armoured infantry, I know my way around a 30 mm canon. A 50-cal cannot defeat armour; it is no substitute for 40 mm APFSDS, which is the round that its Ajax brother uses.

In September, the hon. Member for Plymouth Sutton and Devonport stated in a written answer that Ares would be,

 “used to deliver and support specialist troops across the battlefield. The term ‘specialist troops’ is used informally, and in this context refers to Anti-Tank Javelin Teams, Snipers and Support Troops.”

But by November that had changed again, with the same Minister contradictorily stating:

“Anti-tank platoons within Armoured Infantry units will be equipped with Boxer variants”.

So which is it: Ares or Boxer for Javelin platoons? Will armoured infantry battalions be tracked or a mix of wheeled and tracked, with the logistical implications of that? Will Royal Electrical and Mechanical Engineers light aid detachments have both Ajax and Boxer repair and recovery variants? Where are we going to keep the additional vehicles? What is the training burden of mixed armoured fleets, thereby doubling driving cadres, maintenance training, and vehicle commanders’ courses? Have we even bought a recovery variant of Boxer yet? The Army’s own website suggests it is not one of the variants within the 623. This approach is incoherent and suggests that the Army does not really know what to do with the capability it will shortly have.