Westminster Policy News & Legislative Analysis

UK sets out Ukraine security guarantees and financing plan

The UK Prime Minister used a Coalition of the Willing call on 25 November 2025 to set out near‑term priorities on Ukraine. In remarks published by the UK Government, he welcomed progress in Geneva on a draft United States plan and said Ukrainian proposals had improved the text, with most of it now potentially acceptable to Kyiv. The stated objective remains a just and lasting peace built around Ukraine’s security and sovereignty.

He reiterated that Ukraine alone should determine its future. The coalition, now nine months old and involving 36 countries, has been guided by three points: enabling Ukraine to defend itself, preserving its sovereignty, and ensuring decisions about Ukraine are made by Ukraine. He added that any provisions touching European Union or NATO structures would require consent from those members.

Security guarantees were described as the coalition’s central workstream. The Prime Minister called for planning and financing to build Ukraine’s “Future Force” and for the Multinational Force Ukraine to be kept at readiness. National capitals were urged to firm up contributions so capability packages and operational plans are credible and timely, alongside continued coordination with United States military planning.

He said partners should return with a credible political guarantee signalling that any renewed Russian attack would draw a response. The deterrent effect, he argued, depends on Moscow believing that commitment. Washington has recently advanced drafting on these issues, and European partners were asked to align their contributions to match that pace.

Pressure on Russia is to be increased in parallel. The Prime Minister supported moving towards a full embargo on Russian energy and cited recent US sanctions on Russian oil majors as among the most significant recent steps, asserting that these measures are already damaging the Russian economy. He urged partners not to underestimate the cumulative effect of coordinated action.

Short‑term support remains essential as winter sets in. The UK will deliver additional air‑defence missiles in the coming weeks and partners were asked to identify further equipment and munitions to protect cities and infrastructure. The message was that planning for peace cannot displace urgent resupply of air defence, energy system protection and other immediate needs.

Financing featured heavily. He thanked EU institutional teams for their work and noted that EU leaders are due to revisit the question in the coming weeks. The UK signalled readiness to move with the EU on providing financial support based on the value of immobilised Russian assets, a stance intended both to sustain Ukraine in war and to incentivise serious engagement from Moscow.

He framed these measures as part of a wider effort to guarantee European security. Ukraine’s defence was described as the front line of European freedom and values, requiring sustained backing to keep the state functioning while negotiations continue. The emphasis was on continuity of support across military aid, budget assistance and energy resilience.

For officials and partners, the direction of travel points to three practical tasks: keep the Geneva‑track negotiations aligned with Ukraine’s position; finalise a workable model for security guarantees that fits NATO and EU decision‑making; and design financing that draws on immobilised assets within a legally durable structure. Departments were asked to accelerate delivery so announcements can be made collectively in the coming weeks.