Sir Keir Starmer’s national security adviser Jonathan Powell helped to broker the 30-day ceasefire proposal accepted by Volodymyr Zelensky, as Britain attempts to act as a bridge between the US and Ukraine.
The No 10 fixer travelled to Kyiv over the weekend to meet with Mr Zelensky and help draft the proposal, which included a temporary pause in fighting before confidence building measures such as a prisoner-of-war exchange.