Written questions by Obese-Jecty.

What assessment he has made of the potential impact of the addition of the Grok chatbot alongside Google’s generative AI engine on every unclassified and classified network throughout the US Department of War on joint US-UK operations.

The US and UK remain steadfast allies and will continue to closely cooperate on a range of defence and security issues. But how the US Department of War manages the use of technology in their systems is a matter for them. The UK’s Defence AI Strategy recognises AI systems must be adopted to avoid falling behind adversaries, whilst mandating robust cybersecurity and safety measures for these systems. The MOD’s Joint Service Publication 936 mandates that AI systems deployed in UK defence environments must be safe, robust, and secure, must pass relevant assurance checks, and comply with the Government Cyber Security Standard and Secure By Design principles.

Pursuant to the Answer of 12 January 2925, to Question 103528 on Ajax Vehicles: Military Exercises, how many instances of noise and vibration sickness occurred during each of the three exercises.

There were no incidents of noise or vibration symptoms reported on Health and Safety systems by personnel using Ajax on any of the three exercises.

How many NATO administered facilities are based within the UK.

The UK currently has six designated NATO facilities: Allied Maritime Command (MARCOM) – Northwood HeadquartersNATO Joint Electronic Warfare Core Staff (JEWCS) – Royal Naval Air Station YeoviltonNATO Intelligence Fusion Centre (NIFC) – Royal Air Force Molesworth280 Signal Squadron, 1st NATO Signals Battalion - Blandford CampAllied Rapid Reaction Corps (ARRC) – Imjin BarracksEuropean Regional Office of NATO Defence Innovation Accelerator for the North Atlantic (DIANA) – London

What is the delivery timeline of (a) Programme Euston and (b) the Royal Navy’s Additional Fleet Time Docking Capability.

Programme Euston is the Royal Navy’s solution to Additional Fleet Time Docking Capability. The programme aims to deliver a resilient out of water engineering capability at HMNB Clyde by the early 2030s. The next key milestone will be the submission of a Programme Business Case in mid-2026. Timelines are kept under regular review as part of the Department’s major programmes portfolio. For reasons of commercial and operational sensitivities, the department is unable to provide detailed timelines.

What contractual payments to General Dynamics for the Ajax programme have been made since 1 January 2025; and on which dates were they made.

The Ministry of Defence paid General Dynamics Land Systems UK £330 million in line with contractual obligations for the Ajax programme between 1 January 2025 and 12 January 2026. I am unable to publish details of the milestones and payment schedule as this may prejudice the Department's commercial interests.

Pursuant to the Answer of 4 December 2025 to Question 95908 on Ajax Vehicles: Noise, how many Ajax users have had their hearing (a) decline and (b) be downgraded following audiometer protocols after crewing an Ajax vehicle.

To obtain the information required to answer the hon. Member’s question in full would incur disproportionate costs due to the amount of data that would need to be obtained.

How many Ajax-family vehicles have completed factory acceptance testing.

The Ajax programme utilises a Joint Acceptance Group to undertake acceptance testing. All 185 capability drop 3 vehicles have been through this process.

What were the 11 limitations of use on Ajax vehicles in September 2021 that were critical to achieving initial operating capability.

While it would be inappropriate to release details of the 11 limitations of use identified in the NAO report for security reasons, as a complete list of criteria could, or would be likely to, prejudice the capability of our Armed Forces, those limitations were resolved prior to Initial Operating Capability being met.

What is the planed timeline for replacing the L118 105mm Light Gun.

An assessment of the future capability requirements remains ongoing. No decisions on a potential replacement have yet been taken.

How many Ajax vehicles with identified faults were (a) manufactured and assembled in Spain and (b) manufactured in Spain and assembled in Wales.

No Ajax vehicles have been manufactured and assembled in Spain.No Ajax vehicles have been manufactured in Spain and assembled in Wales.

What is the current status of the shipborne rolling vertical landing programme.

Equipment to enable UK F-35Bs to undertake Shipborne Rolling Vertical Landings (SRVL) is fitted to HMS Prince Of Wales (PWLS) and underwent initial trials in 2023; the results of those trials continue to be analysed by a commercial partner. When complete, this will enable the Ministry of Defence to make an accurate assessment of the benefits and cost of further developing the SRVL system for operational use.

Pursuant to the Answer of 9 January 2026 to Question 98880 on Ajax Vehicles: Noise, whether concerns were raised by the (a) Defence Science and Technology Lab and (b) Defence Equipment & Support on the accuracy of the findings of the (i) noise and (ii) vibration calculator.

There have been no concerns on the accuracy of the calculator since 2021.Work was undertaken to address concerns raised about the accuracy of the findings of the calculator from both DSTL and Defence Equipment and Support staff prior to 2021. Recent evidence from testing on platforms demonstrates both the accuracy and the safety factor within the calculator. These concerns were raised five years ago and have been fully addressed.

When is the assembly of Ajax-family vehicles due to be completed at Merthyr Tydfil.

Assembly of all 589 Ajax platforms is forecast to be completed by December 2028.

What assessment he has made of the potential risk of new vessels, intended to support operations at HM Naval Base Clyde, procured by Serco as part of the Royal Navy harbour and support craft element of the Defence Maritime Services Next Generation programme may be built in China.

Vessels being procured as part of the Defence Marine Services-Next Generation In-Port Services will not be built in China and future maintenance of the vessels will take place in the UK. This Government is stepping up our support for UK shipbuilders. We are looking closely at the subcontracting supply chain as part of our Shipbuilding and Maritime Technology Action Plan, which will set out our plans to ensure that we are maximising our use of UK industry as an engine for growth.

Whether the Royal Marines will be included within the scope of the Armed Forces Foundation Scheme.

At the present time, there are no plans to include the Royal Marines in Tranche 1 of the Gap Year. However, Tranche 1 will help to understand the impact and measure success, informing the future shape of the scheme. The Royal Navy is developing a one-year scheme opening with Tranche 1 in March 2026 as a profession-agnostic employment scheme for sailors. Our intent is to offer broad employment across operational surface platforms in non-technical activities and potentially in the future, some shore-based roles, where the cohort will have received the minimum training feasible to be safe and effective at sea. This is an exciting opportunity to live and work alongside sailors on ships deployed on missions at sea, contributing to tasks that keep the ship running, and learning skills that could be developed into future careers, such as conducting supervised engineering watchkeeping tasks, seamanship activity, communal duties and whole ship tasks.

How many of the order of 589 Ajax hulls have now been built by General Dynamics.

All 589 Ajax hulls have been produced.

What assessment he has made of the implications for his policies of the decrease in power-to-weight ratio between Challenger 2 and Challenger 3.

I thank the hon. Gentleman for his intent and he will know that Challenger 3 has been designed to deliver an optimal balance of lethality, survivability, and mobility to meet its operational requirements.

What is the full scope of Project Vanquish.

Project Vanquish has been launched by the Royal Navy to seek proposals from industry for a Technical Demonstration of a Fixed-Wing, Short Take Off and Landing, Autonomous Collaborative Platform. Vanquish will be a jet-powered aircraft able to take off and land from a Queen Elizabeth Class carrier without the need for catapults or arrestor gear. It will determine the ability of such an air vehicle to deliver maritime mission sets for Carrier Strike.

Pursuant to the answer of 5th January 2026, to question 100522 on General Dynamics, when was a) he or b) the Minister for Defence Readiness and Industry, informed, formally or informally that all criteria for Ajax Initial Operating Capability (IOC) were met on 23 July 2025, and by whom.

As previously confirmed, prior to Initial Operating Capability being announced on 5 November 2025, assurances and advice were provided to Ministers regarding the safety of the platform and confirming all criteria had been met.

Pursuant to the answer of 5th January 2026, to question 100522 on General Dynamics, what was the complete list of criteria for Ajax Initial Operating Capability (IOC) that was met on 23 July 2025.

The Armoured Cavalry Programme met all pre-agreed elements required to confirm Initial Operation Capability on 23 July 2025. The criteria spanned across all recognised Defence Lines of Development including Training, Equipment, Personnel, Information, Doctrine and Concepts, Organisation, Infrastructure, Safety and Logistics. It would not be appropriate to release the complete list of criteria as to do so could, or would be likely to, prejudice the capability of our Armed Forces.