22:00Biggest Russian bombardment on Ukraine yetRussian strategic missiles “travel twenty times faster than speed of sound”BBC Radio 4 Duration: 45 minutes Fri 27th Dec 2019, 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