The UK Government has confirmed the extension of Operation INTERFLEX until the end of 2026, ensuring Ukrainian soldiers continue to receive world-leading training as part of efforts to resist Russian aggression and prepare Ukraine’s forces for long-term deterrence.
Introduction
On Ukrainian Independence Day, the Defence Secretary announced the extension of Britain’s training programme for Ukrainian recruits.
Operation INTERFLEX has already trained more than 50,000 troops, and the new commitment signals the UK’s determination to strengthen Ukraine’s armed forces, deter future threats, and bolster regional stability.
Operation INTERFLEX: Building Capability
Launched in 2022, Operation INTERFLEX is one of the largest military training schemes of its kind. The UK leads a coalition of 13 nations providing instruction in essential combat, leadership, and instructor skills.
Training has gradually evolved from five-week basic courses to seven-week programmes, with additional courses focused on command and leadership.
This shift reflects Ukraine’s growing need to regenerate its forces and develop new cadres of leaders capable of sustaining defence and deterrence.
Adapting to Battlefield Needs
The programme’s design continues to adapt to the realities of Ukraine’s fight against Russia. Initially focused on basic combat training, courses now also include:
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Platoon and Section Leadership Training – developing junior commanders.
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Instructor Training – enabling Ukrainians to expand training at home.
These changes not only strengthen Ukraine’s capacity today but also secure its long-term ability to deter future aggression.
Voices from the Frontline
Ukrainian soldiers completing the courses have praised the professionalism of British instructors and the realism of the training.
One trainee, Artem, explained that classes simulate real combat conditions — in trenches, urban areas, and forests. He emphasised how the training enhanced his ability to coordinate troops, deliver first aid under pressure, and prepare for both defensive and offensive operations.
Impact So Far
The UK has trained more than 50,000 Ukrainian troops since INTERFLEX began, with survey data showing 83% of leadership trainees felt better able to keep their troops safe, and 93% reported higher confidence in combat effectiveness.
Operation INTERFLEX Achievements
| Focal Areas | Detail | Effect |
|---|---|---|
| Basic Infantry | Seven-week combat skills course | Builds frontline resilience |
| Leadership | Command training for platoon/section leaders | Enhances battlefield coordination |
| Instructor Training | Courses for new Ukrainian trainers | Expands domestic capacity |
| Coalition Support | 13 partner nations involved | Strengthens international solidarity |
| Troops Trained | Over 50,000 recruits | Boosts Ukraine’s military strength |
Broader UK–Ukraine Partnership
Support for Ukraine extends beyond training. Britain has pledged £4.5 billion in military aid this year alone, the largest commitment yet.
Investments include air defence systems, drones, and industrial collaboration with British defence firms, creating jobs at home while supplying equipment abroad.
At the same time, close cooperation allows the UK to learn from Ukraine’s battlefield experiences, sharpening British military skills and strategies. This mutual exchange strengthens both nations’ defences.
Political and Strategic Context
Defence Secretary John Healey MP highlighted the importance of sustaining Ukraine’s resistance:
“The UK is united for Ukraine. We will continue to step up support so Ukraine can defend today and deter tomorrow.”
The extension coincides with international discussions on a potential peace settlement. Britain and France are leading a “Coalition of the Willing,” exploring plans for multinational support in the event of an agreement.
Looking Ahead
The UK’s decision to extend Operation INTERFLEX until 2026 underscores a long-term commitment. By training a new generation of soldiers, commanders, and instructors, Britain is helping Ukraine prepare for both the ongoing conflict and a post-war future where deterrence is essential.
To Sum Up
Operation INTERFLEX represents one of the UK’s most significant contributions to Ukraine’s security. With more than 50,000 troops trained and a renewed mandate through 2026, the programme strengthens Ukraine’s fight today while laying the foundations for lasting peace and deterrence.
For continued updates on defence and foreign policy developments, follow THX News coverage of UK–Ukraine cooperation.
Sources: Ministry of Defence and The Rt Hon John Healey MP.
Prepared by Ivan Alexander Golden, Founder of THX News™, an independent news organization delivering timely insights from global official sources. Combines AI-analyzed research with human-edited accuracy and context.
