22:00Biggest Russian bombardment on Ukraine yetBoris Johnson rules out re-opening schools fully before March 8thBBC Radio 4 Duration: 45 minutes Wed 27th Jan 2021, 22:00 on BBC Radio 4 FMAvailable for over a yearListen nowIn depth reporting, intelligent analysis and breaking news from a global perspectiveGenresNewsBrandBiggest Russian bombardment on Ukraine yet Source: BBC Online