Written questions by Cartlidge.

With reference to paragraph 55 of the policy paper entitled Security and defence partnership between the European Union and the United Kingdom of Great Britain and Northern Ireland, published on 19 May 2025, what recent progress has been made on collaborating to ensure gender equality as a (a) political, (b) conflict and (c) security-related priority.

The Security and Defence Partnership agreed with the European Union on 19 May is an example of this Government delivering on our manifesto commitments to strengthen European security, support growth and reinforce NATO. Implementation is progressing. Since May, the Defence Secretary has held discussions with the European Commissioner for Defence and Space, Andrius Kubilius, where they discussed our ambition to explore the potential for enhanced UK-EU cooperation under SAFE. The Foreign Secretary has also held talks with the High Representative for Foreign Affairs and Security Policy, Kaja Kallas on the geopolitical challenges that face our continent. We look forward to the foreign and security policy dialogue between the High Representative, the Foreign Secretary and the Defence Secretary this autumn. In addition, officials from across Government continue to hold consultations with their EU counterparts on a range of issues, including but not limited to Iran, Russia-Ukraine, and tackling irregular migration. As the Defence Secretary has previously said to this House, he will ensure that any UK commitment– whether financial or non-financial – provides value for the UK taxpayer and supports our defence goals. We will continue to prioritise engagement and cooperation on the issues that are most important in helping to safeguard European security and prosperity – all in support of this government’s NATO First defence policy. The Defence Secretary and I look forward to continuing to update the House on developments. The Defence Secretary’s offer still stands that he is happy to arrange a discussion with the Member of Parliament for South Suffolk who has shown such interest in these topics.

With reference to paragraph 12(a) of the policy paper entitled Security and defence partnership between the European Union and the United Kingdom of Great Britain and Northern Ireland, published on 19 May 2025, what progress the High Representative of the European Union for Foreign Affairs and Security Policy and UK Foreign and Defence Secretaries' foreign and security policy dialogues have enabled on issues relating to hybrid threats since 19 May 2025.

The Security and Defence Partnership agreed with the European Union on 19 May is an example of this Government delivering on our manifesto commitments to strengthen European security, support growth and reinforce NATO. Implementation is progressing. Since May, the Defence Secretary has held discussions with the European Commissioner for Defence and Space, Andrius Kubilius, where they discussed our ambition to explore the potential for enhanced UK-EU cooperation under SAFE. The Foreign Secretary has also held talks with the High Representative for Foreign Affairs and Security Policy, Kaja Kallas on the geopolitical challenges that face our continent. We look forward to the foreign and security policy dialogue between the High Representative, the Foreign Secretary and the Defence Secretary this autumn. In addition, officials from across Government continue to hold consultations with their EU counterparts on a range of issues, including but not limited to Iran, Russia-Ukraine, and tackling irregular migration. As the Defence Secretary has previously said to this House, he will ensure that any UK commitment– whether financial or non-financial – provides value for the UK taxpayer and supports our defence goals. We will continue to prioritise engagement and cooperation on the issues that are most important in helping to safeguard European security and prosperity – all in support of this government’s NATO First defence policy. The Defence Secretary and I look forward to continuing to update the House on developments. The Defence Secretary’s offer still stands that he is happy to arrange a discussion with the Member of Parliament for South Suffolk who has shown such interest in these topics.

With reference to paragraph 12, subsection e of the policy paper entitled Security and defence partnership between the European Union and the United Kingdom of Great Britain and Northern Ireland, published on 19 May 2025, whether the US bombing of Iran's nuclear facilities was discussed as part of countering the proliferation of weapons of mass destruction through thematic dialogues via the UK-EU Security and Defence Dialogue.

The Security and Defence Partnership agreed with the European Union on 19 May is an example of this Government delivering on our manifesto commitments to strengthen European security, support growth and reinforce NATO. Implementation is progressing. Since May, the Defence Secretary has held discussions with the European Commissioner for Defence and Space, Andrius Kubilius, where they discussed our ambition to explore the potential for enhanced UK-EU cooperation under SAFE. The Foreign Secretary has also held talks with the High Representative for Foreign Affairs and Security Policy, Kaja Kallas on the geopolitical challenges that face our continent. We look forward to the foreign and security policy dialogue between the High Representative, the Foreign Secretary and the Defence Secretary this autumn. In addition, officials from across Government continue to hold consultations with their EU counterparts on a range of issues, including but not limited to Iran, Russia-Ukraine, and tackling irregular migration. As the Defence Secretary has previously said to this House, he will ensure that any UK commitment– whether financial or non-financial – provides value for the UK taxpayer and supports our defence goals. We will continue to prioritise engagement and cooperation on the issues that are most important in helping to safeguard European security and prosperity – all in support of this government’s NATO First defence policy. The Defence Secretary and I look forward to continuing to update the House on developments. The Defence Secretary’s offer still stands that he is happy to arrange a discussion with the Member of Parliament for South Suffolk who has shown such interest in these topics.

With reference to paragraph 12(c) of the policy paper entitled Security and defence partnership between the European Union and the United Kingdom of Great Britain and Northern Ireland, published on 19 May 2025, how many times the Deputy Secretary General has met with relevant Ministers or Permanent Secretaries of the (a) Foreign, Commonwealth and Development Office and (b) Ministry of Defence through the dedicated Security and Defence Dialogue since 19 May 2025.

The Security and Defence Partnership agreed with the European Union on 19 May is an example of this Government delivering on our manifesto commitments to strengthen European security, support growth and reinforce NATO. Implementation is progressing. Since May, the Defence Secretary has held discussions with the European Commissioner for Defence and Space, Andrius Kubilius, where they discussed our ambition to explore the potential for enhanced UK-EU cooperation under SAFE. The Foreign Secretary has also held talks with the High Representative for Foreign Affairs and Security Policy, Kaja Kallas on the geopolitical challenges that face our continent. We look forward to the foreign and security policy dialogue between the High Representative, the Foreign Secretary and the Defence Secretary this autumn. In addition, officials from across Government continue to hold consultations with their EU counterparts on a range of issues, including but not limited to Iran, Russia-Ukraine, and tackling irregular migration. As the Defence Secretary has previously said to this House, he will ensure that any UK commitment– whether financial or non-financial – provides value for the UK taxpayer and supports our defence goals. We will continue to prioritise engagement and cooperation on the issues that are most important in helping to safeguard European security and prosperity – all in support of this government’s NATO First defence policy. The Defence Secretary and I look forward to continuing to update the House on developments. The Defence Secretary’s offer still stands that he is happy to arrange a discussion with the Member of Parliament for South Suffolk who has shown such interest in these topics.

With reference to paragraph 36 of the policy paper entitled Security and defence partnership between the European Union and the United Kingdom of Great Britain and Northern Ireland, published on 19 May 2025, what recent progress has been made between the EU and the UK to strengthen cooperation to counter attempts by malign foreign actors to undermine security and democratic institutions.

The Security and Defence Partnership agreed with the European Union on 19 May is an example of this Government delivering on our manifesto commitments to strengthen European security, support growth and reinforce NATO. Implementation is progressing. Since May, the Defence Secretary has held discussions with the European Commissioner for Defence and Space, Andrius Kubilius, where they discussed our ambition to explore the potential for enhanced UK-EU cooperation under SAFE. The Foreign Secretary has also held talks with the High Representative for Foreign Affairs and Security Policy, Kaja Kallas on the geopolitical challenges that face our continent. We look forward to the foreign and security policy dialogue between the High Representative, the Foreign Secretary and the Defence Secretary this autumn. In addition, officials from across Government continue to hold consultations with their EU counterparts on a range of issues, including but not limited to Iran, Russia-Ukraine, and tackling irregular migration. As the Defence Secretary has previously said to this House, he will ensure that any UK commitment– whether financial or non-financial – provides value for the UK taxpayer and supports our defence goals. We will continue to prioritise engagement and cooperation on the issues that are most important in helping to safeguard European security and prosperity – all in support of this government’s NATO First defence policy. The Defence Secretary and I look forward to continuing to update the House on developments. The Defence Secretary’s offer still stands that he is happy to arrange a discussion with the Member of Parliament for South Suffolk who has shown such interest in these topics.

With reference to paragraph 12(e) of the policy paper entitled Security and defence partnership between the European Union and the United Kingdom of Great Britain and Northern Ireland, published on 19 May 2025, what progress has been made on counter terrorism through thematic dialogues via the UK-EU Security and Defence Dialogue.

The Security and Defence Partnership agreed with the European Union on 19 May is an example of this Government delivering on our manifesto commitments to strengthen European security, support growth and reinforce NATO. Implementation is progressing. Since May, the Defence Secretary has held discussions with the European Commissioner for Defence and Space, Andrius Kubilius, where they discussed our ambition to explore the potential for enhanced UK-EU cooperation under SAFE. The Foreign Secretary has also held talks with the High Representative for Foreign Affairs and Security Policy, Kaja Kallas on the geopolitical challenges that face our continent. We look forward to the foreign and security policy dialogue between the High Representative, the Foreign Secretary and the Defence Secretary this autumn. In addition, officials from across Government continue to hold consultations with their EU counterparts on a range of issues, including but not limited to Iran, Russia-Ukraine, and tackling irregular migration. As the Defence Secretary has previously said to this House, he will ensure that any UK commitment– whether financial or non-financial – provides value for the UK taxpayer and supports our defence goals. We will continue to prioritise engagement and cooperation on the issues that are most important in helping to safeguard European security and prosperity – all in support of this government’s NATO First defence policy. The Defence Secretary and I look forward to continuing to update the House on developments. The Defence Secretary’s offer still stands that he is happy to arrange a discussion with the Member of Parliament for South Suffolk who has shown such interest in these topics.

With reference to paragraph 35 of the policy paper entitled Security and defence partnership between the European Union and the United Kingdom of Great Britain and Northern Ireland, published on 19 May 2025, how many exchanges between the UK and the EU have taken place in relation to enhancing the resilience of critical infrastructure in Europe since 19 May 2025.

The Security and Defence Partnership agreed with the European Union on 19 May is an example of this Government delivering on our manifesto commitments to strengthen European security, support growth and reinforce NATO. Implementation is progressing. Since May, the Defence Secretary has held discussions with the European Commissioner for Defence and Space, Andrius Kubilius, where they discussed our ambition to explore the potential for enhanced UK-EU cooperation under SAFE. The Foreign Secretary has also held talks with the High Representative for Foreign Affairs and Security Policy, Kaja Kallas on the geopolitical challenges that face our continent. We look forward to the foreign and security policy dialogue between the High Representative, the Foreign Secretary and the Defence Secretary this autumn. In addition, officials from across Government continue to hold consultations with their EU counterparts on a range of issues, including but not limited to Iran, Russia-Ukraine, and tackling irregular migration. As the Defence Secretary has previously said to this House, he will ensure that any UK commitment– whether financial or non-financial – provides value for the UK taxpayer and supports our defence goals. We will continue to prioritise engagement and cooperation on the issues that are most important in helping to safeguard European security and prosperity – all in support of this government’s NATO First defence policy. The Defence Secretary and I look forward to continuing to update the House on developments. The Defence Secretary’s offer still stands that he is happy to arrange a discussion with the Member of Parliament for South Suffolk who has shown such interest in these topics.

With reference to paragraph 41 of the policy paper entitled Security and defence partnership between the European Union and the United Kingdom of Great Britain and Northern Ireland, published on 19 May 2025, on what occasions the UK and the EU have worked closely together on multilateral and humanitarian arms control since 19 May 2025.

The Security and Defence Partnership agreed with the European Union on 19 May is an example of this Government delivering on our manifesto commitments to strengthen European security, support growth and reinforce NATO. Implementation is progressing. Since May, the Defence Secretary has held discussions with the European Commissioner for Defence and Space, Andrius Kubilius, where they discussed our ambition to explore the potential for enhanced UK-EU cooperation under SAFE. The Foreign Secretary has also held talks with the High Representative for Foreign Affairs and Security Policy, Kaja Kallas on the geopolitical challenges that face our continent. We look forward to the foreign and security policy dialogue between the High Representative, the Foreign Secretary and the Defence Secretary this autumn. In addition, officials from across Government continue to hold consultations with their EU counterparts on a range of issues, including but not limited to Iran, Russia-Ukraine, and tackling irregular migration. As the Defence Secretary has previously said to this House, he will ensure that any UK commitment– whether financial or non-financial – provides value for the UK taxpayer and supports our defence goals. We will continue to prioritise engagement and cooperation on the issues that are most important in helping to safeguard European security and prosperity – all in support of this government’s NATO First defence policy. The Defence Secretary and I look forward to continuing to update the House on developments. The Defence Secretary’s offer still stands that he is happy to arrange a discussion with the Member of Parliament for South Suffolk who has shown such interest in these topics.

With reference to his Department’s press release entitled New Storm Shadow and missile cooperation to boost jobs as UK and France reboot defence relationship, published on 9 July 2025, whether he consulted sources external to his Department and the Defence Nuclear Organisation on the independence of the UK's nuclear capabilities when negotiating the UK-France Nuclear Partnership.

Our nuclear deterrent has always been and continues to be completely operationally independent, with only the Prime Minister being able to authorise the use of our nuclear weapons. In line with the Northwood Declaration on 10 July, the UK and France each retain the ability to act independently of each other but can coordinate our nuclear deterrents should the situation demand it.

With reference to the Government press release entitled New Storm Shadow and missile cooperation to boost jobs as UK and France reboot defence relationship, published on 9 July 2025, what assessment he has made of the potential impact of deepening UK and France nuclear planning and research cooperation on UK sovereign nuclear capability.

The UK and France work closely together on a range of nuclear research and technology matters, including as part of the 2010 TEUTATES Treaty. Our enhanced cooperation with France will not affect the UK’s sovereign nuclear capability which has always been and continues to be completely operationally independent. There are mechanisms in place to ensure UK and French officials can engage on nuclear research with the appropriate levels of security.

With reference to paragraph 42 of the policy paper entitled Security and defence partnership between the European Union and the United Kingdom of Great Britain and Northern Ireland, published on 19 May 2025, what further opportunities have been explored by the EU and the UK for (a) coordination, (b) cooperation and (c) synergies in support of capacity building for partners in (i) security and (ii) defence in the context of (A) EU-NATO and (B) other areas.

The Security and Defence Partnership agreed with the European Union on 19 May is an example of this Government delivering on our manifesto commitments to strengthen European security, support growth and reinforce NATO. Implementation is progressing. Since May, the Defence Secretary has held discussions with the European Commissioner for Defence and Space, Andrius Kubilius, where they discussed our ambition to explore the potential for enhanced UK-EU cooperation under SAFE. The Foreign Secretary has also held talks with the High Representative for Foreign Affairs and Security Policy, Kaja Kallas on the geopolitical challenges that face our continent. We look forward to the foreign and security policy dialogue between the High Representative, the Foreign Secretary and the Defence Secretary this autumn. In addition, officials from across Government continue to hold consultations with their EU counterparts on a range of issues, including but not limited to Iran, Russia-Ukraine, and tackling irregular migration. As the Defence Secretary has previously said to this House, he will ensure that any UK commitment– whether financial or non-financial – provides value for the UK taxpayer and supports our defence goals. We will continue to prioritise engagement and cooperation on the issues that are most important in helping to safeguard European security and prosperity – all in support of this government’s NATO First defence policy. The Defence Secretary and I look forward to continuing to update the House on developments. The Defence Secretary’s offer still stands that he is happy to arrange a discussion with the Member of Parliament for South Suffolk who has shown such interest in these topics.

With reference to paragraph 40 of the policy paper entitled Security and defence partnership between the European Union and the United Kingdom of Great Britain and Northern Ireland, published on 19 May 2025, whether any exchanges have taken place between the EU and the UK in relation to existing and emerging proliferation challenges since 19 May 2025.

The Security and Defence Partnership agreed with the European Union on 19 May is an example of this Government delivering on our manifesto commitments to strengthen European security, support growth and reinforce NATO. Implementation is progressing. Since May, the Defence Secretary has held discussions with the European Commissioner for Defence and Space, Andrius Kubilius, where they discussed our ambition to explore the potential for enhanced UK-EU cooperation under SAFE. The Foreign Secretary has also held talks with the High Representative for Foreign Affairs and Security Policy, Kaja Kallas on the geopolitical challenges that face our continent. We look forward to the foreign and security policy dialogue between the High Representative, the Foreign Secretary and the Defence Secretary this autumn. In addition, officials from across Government continue to hold consultations with their EU counterparts on a range of issues, including but not limited to Iran, Russia-Ukraine, and tackling irregular migration. As the Defence Secretary has previously said to this House, he will ensure that any UK commitment– whether financial or non-financial – provides value for the UK taxpayer and supports our defence goals. We will continue to prioritise engagement and cooperation on the issues that are most important in helping to safeguard European security and prosperity – all in support of this government’s NATO First defence policy. The Defence Secretary and I look forward to continuing to update the House on developments. The Defence Secretary’s offer still stands that he is happy to arrange a discussion with the Member of Parliament for South Suffolk who has shown such interest in these topics.

With reference to paragraph 39 of the policy paper entitled Security and defence partnership between the European Union and the United Kingdom of Great Britain and Northern Ireland, published on 19 May 2025, what recent progress has been made between the UK and the EU to develop cooperation on counter-terrorism and the prevention of violent extremism.

The Security and Defence Partnership agreed with the European Union on 19 May is an example of this Government delivering on our manifesto commitments to strengthen European security, support growth and reinforce NATO. Implementation is progressing. Since May, the Defence Secretary has held discussions with the European Commissioner for Defence and Space, Andrius Kubilius, where they discussed our ambition to explore the potential for enhanced UK-EU cooperation under SAFE. The Foreign Secretary has also held talks with the High Representative for Foreign Affairs and Security Policy, Kaja Kallas on the geopolitical challenges that face our continent. We look forward to the foreign and security policy dialogue between the High Representative, the Foreign Secretary and the Defence Secretary this autumn. In addition, officials from across Government continue to hold consultations with their EU counterparts on a range of issues, including but not limited to Iran, Russia-Ukraine, and tackling irregular migration. As the Defence Secretary has previously said to this House, he will ensure that any UK commitment– whether financial or non-financial – provides value for the UK taxpayer and supports our defence goals. We will continue to prioritise engagement and cooperation on the issues that are most important in helping to safeguard European security and prosperity – all in support of this government’s NATO First defence policy. The Defence Secretary and I look forward to continuing to update the House on developments. The Defence Secretary’s offer still stands that he is happy to arrange a discussion with the Member of Parliament for South Suffolk who has shown such interest in these topics.

With reference to his Department’s press release entitled New Storm Shadow and missile cooperation to boost jobs as UK and France reboot defence relationship, published on 9 July 2025, what assessment he has made of the security level that French officials will be cleared to in order to engage with the UK on nuclear research in line with the UK-France Nuclear Partnership.

The UK and France work closely together on a range of nuclear research and technology matters, including as part of the 2010 TEUTATES Treaty. Our enhanced cooperation with France will not affect the UK’s sovereign nuclear capability which has always been and continues to be completely operationally independent. There are mechanisms in place to ensure UK and French officials can engage on nuclear research with the appropriate levels of security.

With reference to the Government press release entitled New Storm Shadow and missile cooperation to boost jobs as UK and France reboot defence relationship, published on 9 July 2025, whether Commander Strategic Command was consulted prior to the agreement to create the 50,000 strong combined joint force.

Detailed planning of the Combined Joint Force (CJF), evolving from the currently existing Combined Joint Expeditionary Force (CJEF), is currently under way with French colleagues following Thursday’s announcement.The current command structure of the CJEF under its Concept of Employment (CONEMP) is of a single operational commander provided by either the UK or France, appointed by both nations. It should be noted the CJEF is not a standing force, but made up of high-readiness forces available when it is deployed.All UK Service Chiefs, including VCDS and Commander Strat Comm, were consulted ahead of the agreement to create the CJF. Most significantly, on 24 March 2025 at the third annual UK-France All Chiefs meeting in London, the proposal was discussed with all of the French and UK Military Chiefs of Staff.

With reference to paragraph 37 of the policy paper entitled Security and defence partnership between the European Union and the United Kingdom of Great Britain and Northern Ireland, published on 19 May 2025, what recent progress has been made between the EU and the UK to reinforce information sharing on Foreign Information Manipulation and Interference (a) threat analysis, (b) reporting and (c) best practices.

The Security and Defence Partnership agreed with the European Union on 19 May is an example of this Government delivering on our manifesto commitments to strengthen European security, support growth and reinforce NATO. Implementation is progressing. Since May, the Defence Secretary has held discussions with the European Commissioner for Defence and Space, Andrius Kubilius, where they discussed our ambition to explore the potential for enhanced UK-EU cooperation under SAFE. The Foreign Secretary has also held talks with the High Representative for Foreign Affairs and Security Policy, Kaja Kallas on the geopolitical challenges that face our continent. We look forward to the foreign and security policy dialogue between the High Representative, the Foreign Secretary and the Defence Secretary this autumn. In addition, officials from across Government continue to hold consultations with their EU counterparts on a range of issues, including but not limited to Iran, Russia-Ukraine, and tackling irregular migration. As the Defence Secretary has previously said to this House, he will ensure that any UK commitment– whether financial or non-financial – provides value for the UK taxpayer and supports our defence goals. We will continue to prioritise engagement and cooperation on the issues that are most important in helping to safeguard European security and prosperity – all in support of this government’s NATO First defence policy. The Defence Secretary and I look forward to continuing to update the House on developments. The Defence Secretary’s offer still stands that he is happy to arrange a discussion with the Member of Parliament for South Suffolk who has shown such interest in these topics.

With reference to the Government press release entitled New Storm Shadow and missile cooperation to boost jobs as UK and France reboot defence relationship, published on 09 July 2025, what will be the command structure of the 50,000 strong combined joint force.

Detailed planning of the Combined Joint Force (CJF), evolving from the currently existing Combined Joint Expeditionary Force (CJEF), is currently under way with French colleagues following the UK-France declaration announcement.The current command structure of the CJEF under its Concept of Employment (CONEMP) is of a single operational commander provided by the UK or France, appointed by both nations, following nomination from the CJEF Strategic Coordination Team (SCT) which is jointly led for the UK by Deputy Chief of the Defence Staff (Military Strategy and Operations) and for France by SCOPS.

With reference to paragraph 61 of his Department's joint policy paper entitled Security and defence partnership between the European Union and the United Kingdom of Great Britain and Northern Ireland, published on 19 May 2025, when the areas identified in the Security and Defence Partnership were last reviewed.

The Security and Defence Partnership agreed with the European Union on 19 May is an example of this Government delivering on our manifesto commitments to strengthen European security, support growth and reinforce NATO. Implementation is progressing. Since May, the Defence Secretary has held discussions with the European Commissioner for Defence and Space, Andrius Kubilius, where they discussed our ambition to explore the potential for enhanced UK-EU cooperation under SAFE. The Foreign Secretary has also held talks with the High Representative for Foreign Affairs and Security Policy, Kaja Kallas on the geopolitical challenges that face our continent. We look forward to the foreign and security policy dialogue between the High Representative, the Foreign Secretary and the Defence Secretary this autumn. In addition, officials from across Government continue to hold consultations with their EU counterparts on a range of issues, including but not limited to Iran, Russia-Ukraine, and tackling irregular migration. As the Defence Secretary has previously said to this House, he will ensure that any UK commitment– whether financial or non-financial – provides value for the UK taxpayer and supports our defence goals. We will continue to prioritise engagement and cooperation on the issues that are most important in helping to safeguard European security and prosperity – all in support of this government’s NATO First defence policy. The Defence Secretary and I look forward to continuing to update the House on developments. The Defence Secretary’s offer still stands that he is happy to arrange a discussion with the Member of Parliament for South Suffolk who has shown such interest in these topics.

With reference to the Government press release entitled New Storm Shadow and missile cooperation to boost jobs as UK and France reboot defence relationship, published on 9 July 2025, whether the 50,000 strong combined joint force will replace the NATO Allied Rapid Reaction Corps.

Detailed planning of the Combined Joint Force (CJF), evolving from the currently existing Combined Joint Expeditionary Force (CJEF), is currently under way with French colleagues following the UK-France declaration announcement. This will be done in full consultation with NATO with respect to the Allied Rapid Reaction Corps (ARRC).As stated in the declaration the CJF will ensure the ability to plan and command a Combined Corps Capability. This corps can provide the Land component of a broader joint force combining all military functions, as part of NATO or bilaterally. The force will draw on corps level capabilities, including elements of the ARRC, as forces currently do under the CJEF Concept of Employment. It is not intended that the CJF will replace the ARRC, rather it will strengthen our warfighting corps through a deepened framework for interoperability and training.As this will be a NATO Strategic Reserve Corps, it is anticipated that the forces held at readiness for NATO will include those held at readiness for the CJF. The CJF will be fully interoperable and able to act in lockstep with the Alliance, whilst also providing a resilient framework for bilateral operations. The CJF will complement our already significant contribution to the Alliance.The current structure of the CJEF under its Concept of Employment (CONEMP) is for the use of high readiness national forces to respond to a crisis situation. There is no specified CJEF ‘state of readiness’. UK Troops offered to NATO as part of the Strategic Reserve Corps are currently held at Tier 3 with a readiness of 31-180 days.The current command structure of the CJEF, under its Concept of Employment (CONEMP), does not discriminate between using those forces already held at readiness for NATO or otherwise.

With reference to the press release entitled New Storm Shadow and missile cooperation to boost jobs as UK and France reboot defence relationship, published on 9 July 2025, how many additional armed forces personnel are needed to fill the 50,000 strong combined joint force.

Detailed planning of the Combined Joint Force (CJF), evolving from the currently existing Combined Joint Expeditionary Force (CJEF), is currently under way with French colleagues following the UK-France declaration announcement. Any future basing will be subject to bilateral agreement between the UK and France and announced in due course when negotiated.The UK-France Lancaster House 2.0 declaration of 10 July 2025 committed to launch the Combined Joint Force – overhauling the existing Combined Joint Expeditionary Force to refocus it on the Euro-Atlantic and warfighting at scale to deter, placing it on an operational footing for the first time by endeavouring to significantly increase the declared Combined Joint Force (CJF) capacity, up to fivefold, ensuring the ability to plan and command Combined Corps Capability (the highest level of fielded forces in our armies). This Corps can provide the Land component of a broader joint force combining all military functions, as part of NATO or bilaterally. The CJF will facilitate the deployment of a force fully interoperable with NATO and available as the Alliance’s Strategic Reserve; this is a critical step towards the UK and France providing two fully interoperable Strategic Reserve Corps to NATO, enabled by the CJF.For the CJF Corps, our working assumption is a broadly equal split of force contributions. It will be constituted of UK and French forces held at readiness in their usual national basing arrangements. Existing UK and French exchange officers currently embedded in each other’s structures will act as operational coordination and support for the CJF at times when it is not being actively deployed.Like the CJEF, the CJF Force will be designed to meet the task at hand. The exact proportion of each nation’s contribution can only be defined with a specific task. The forces required would be selected from the UK and France according to a number of factors, including roles and availability.We anticipate that the CJF will operate as an integrated force in multi-domain operations and could include, as required, elements from the Maritime, Land, Air, Space and Cyber domains. The CJF is intended to be drawn from existing forces.The current structure of the CJEF under its Concept of Employment (CONEMP) is that there are no permanently assigned or standing forces, combined headquarters, nor planning teams. The CJEF draws on whichever national high readiness forces are declared as available, including lead elements at very short notice, if required for the operation. These are taken from the UK and France following bilateral agreement as appropriate. No UK Armed Forces units are permanently assigned to form the CJEF.The CJEF is not intended to be a standing force and thus is not planned to be permanently based anywhere.