More than 56,000 Ukrainian soldiers have been trained by the UK and 13 partner nations on Operation Interflex; the UK-led, multination training programme.  

Today (Thursday 26 June 2025) marks three years since the first Ukrainian trainees landed on British soil to begin the vital military training that turns civilians into soldiers capable of returning home to repel Russia’s illegal invasion of their country.  

During this time Operation Interflex has continued to evolve to match the specific threats being faced on the frontlines in Ukraine. A variety of training programmes have been delivered via Operation Interflex focussed on equipping trainees with the battlefield essentials: the basic infantry course, leadership training, and instructor courses, which continuously adapt to Ukraine’s needs. 

Led by the UK, Operation Interflex has been delivered alongside 13 other partner nations: Australia, New Zealand, Canada, Denmark, Finland, the Netherlands, Norway, Sweden, Albania, Estonia, Kosovo, Lithuania, and Romania. Service personnel from these nations are united in the objective to deliver high quality training that meets the needs of the Armed Forces of Ukraine.  

At a recent meeting of the Ukraine Defence Contact Group (UDCG) on the 4 June, the Defence Secretary announced that the UK will spend a further £247m this year on training the Armed Forces of Ukraine, supporting Operation Interflex’s highly successful training programmes. This funding not only supports Ukraine in its fight against Russian aggression, but it is also vital in ensuring both European and UK security, underpinned by the Government’s Plan for Change.  

Recent polling data reveals that 90% of all the trainees who have completed Interflex training since January 2025 feel more confident in their lethality and survivability at the end of training. The polling also revealed that one of the most valued elements of the training is the battlefield first aid, with 93% of basic recruits saying they felt more confident about treating casualties after receiving the training.  

Minister for the Armed Forces, Luke Pollard MP said: 

From each Ukrainian soldier made combat-ready on UK soil, to the £13bn committed in military support, we are proud of every element of our contribution to Ukraine’s fight against Russia’s illegal invasion.  

The Government is clear that providing military support to Ukraine is essential to both UK and European security. Keeping the country safe is the Government’s first priority, and a foundation of its Plan for Change. 

The UK and its allies are united in our support for Ukraine. I am sure they share my constant awe of the resilience shown by the Ukrainian people in the face of Russian aggression.” 

Colonel Andrew Boardman, Commanding Officer of Operation Interflex: 

Today marks three years since the launch of Operation INTERFLEX to train Ukrainian personnel in the UK. Over this period, the multinational coalition of 14 nations, led by the UK, has trained over 56,000 Ukrainian soldiers, a testament to the enduring strength and shared resolve of our international partnership.  

This milestone reflects not only our unity of purpose but our unwavering commitment to Ukraine’s freedom and NATO’s collective security.” 

The UK is proud to be a leading partner in providing vital support to Ukraine. The government has committed £13 billion of military aid for Ukraine, with £4.5 billion expected to be provided this year. This military aid includes training programmes like Operation Interflex, but also military capabilities and equipment such as drones, air defence systems and munitions.  

The UK and Ukraine’s allies are committed to supporting Ukraine secure a just and lasting peace. The training effort provided by Operation Interflex aims to put Ukraine in the strongest possible position to achieve this peace and to safeguard their sovereignty and our collective security against Russian aggression.