First anniversary of the UK–Ukraine One Hundred Year Partnership: £4.5 billion in support for Ukraine
Today marks one year since the signing of the UK–Ukraine One Hundred Year Partnership Agreement. The Ministry of Defence is summing up its results.
The United Kingdom continues to be among Ukraine’s key and most consistent security partners, delivering large-scale, long-term, and systematic military assistance in response to russia’s full-scale aggression.
In 2025, the United Kingdom’s total support for Ukraine amounted to £4.5 billion, marking the highest annual total over the entire period of the full-scale war.
A substantial portion of this amount is the United Kingdom’s contribution to the G7 Extraordinary Revenue Acceleration (ERA) mechanism, amounting to £2.26 billion in loan financing repaid from proceeds generated by frozen russian assets.
A distinct priority of UK assistance is strengthening air defence capabilities. In 2025, the United Kingdom invested £600 million to enhance air defence capabilities, with a focus on safeguarding Ukrainian cities, critical infrastructure, and the energy system from russian attacks.
Within the ERA contribution, £70 million was directed towards the procurement of 350 ASRAAM missiles to enhance air defence capabilities.
Furthermore, Ukraine received the newly developed Gravehawk air defence system, jointly funded by the United Kingdom and Denmark. Two prototypes of the system were tested in Ukraine in the autumn, and an additional 15 units are due to be delivered within the year.
The United Kingdom is also making a substantial contribution to the development of Ukraine’s unmanned capabilities. In just six months, more than 85,000 military drones were delivered, alongside £600 million in investments to accelerate their production. In addition, a new bilateral agreement between Ukraine and the United Kingdom on the exchange of battlefield technologies is expected to bolster UK drone production for Ukraine’s requirements.
The United Kingdom also plays a leading role in the Drone Coalition and the Maritime Capability Coalition.
Defence-industrial cooperation has become a separate focus of the partnership. A previously signed Defence Industry Support Agreement between Ukraine and the United Kingdom expanded the list of military equipment that can be financed through £3.5 billion in UK export finance. This has already enabled the implementation of a £1.6 billion contract under which Thales is supplying Ukraine with 5,000 Lightweight Multirole Missiles (LMM) manufactured in Belfast. Hundreds of these missiles were delivered to Ukraine five months ahead of schedule.
The United Kingdom continues to play a key role in the training of Ukrainian service members. In 2025, £247 million was allocated for training, with the programme extended through at least the end of 2026. Through Operation INTERFLEX in the United Kingdom, more than 62,000 Ukrainian service members have already received training.
In addition, the United Kingdom administers the International Fund for Ukraine, through which military equipment is procured for the Defence Forces. Overall partner commitments within the Fund have surpassed £2.1 billion, including new contracts worth £30 million with Anduril UK for the supply of advanced unmanned systems.
Overall, the United Kingdom has already provided £10.8 billion in military assistance to Ukraine since the onset of the full-scale invasion. London has announced and enshrined in the One Hundred Year Partnership Agreement its strategic decision to support Ukraine at a level of at least £3 billion per year through 2030–2031, and for as long as necessary, underscoring a shift from ad hoc aid packages to long-term security assistance planning.
The scale and structure of UK assistance demonstrate the strategic character of the partnership between Kyiv and London. It is not merely support for Ukraine in wartime, but a targeted effort to build long-term defence capabilities that can underpin national security and stability across the wider European region.