Would the United Kingdom joining the EU's €78 billion Ukraine loan scheme undermine Brexit?

The EU's €90 billion Ukraine Loan Facility (often reported as £78 billion equivalent) provides long-term loans to Ukraine backed by revenues from frozen Russian central bank assets, funding defence, reconstruction and budget needs amid the ongoing war. The UK government announces entry into formal talks to join the scheme, aiming to deepen post-Brexit defence ties with the EU bloc and open contracts for British firms. This follows prior UK access to parts of the facility and reflects broader reset in UK-EU relations under the current administration.