Expert’s minute-by-minute guide to what would happen if Putin ever fired a nuke at the UK

EXCLUSIVE: Specialists have described how they think the nightmarish situation would unfold.An expert has suggested how a Russian nuclear attack on the UK could unfold. It comes as the country’s full-scale invasion of Ukraine drags on, the Kremlin conducts a so-called “hybrid” war against NATO and Moscow warned that nuclear weapons could be used to respond to British “military action”.