Prime Minister Andy Burnham has been cautioned that Britain is facing an "inevitable" Russian assault on its defence and security infrastructure in retaliation for the UK's unwavering backing of Ukraine.21:51, 11 Sep 2026View ImageThe age of UK conscription has been raised(Image: LadyLensArt via Getty Images)Preparations for worst-case WW3 scenarios may be intensified following fresh threats directed at the UK by Dmitry Medvedev, Vladimir Putin's long-time ally, amid fears that the Russian president could authorise a strike on a vital sector.Medvedev, leader of the principal pro-Putin political party United Russia and deputy head of the influential Kremlin security council, stressed that...