Ukrainian cities have faced an onslaught of missiles from Russia this week in retaliation for the attack on the Kerch bridge that links Russia with occupied Crimea. Russia has threatened to go further and to use tactical nuclear weapons rather than face the defeat of its forces in Ukraine. But would it? Alexander Gabuev, a senior fellow for the Carnegie Endowment think-tank, tells Gideon he thinks Putin’s threat is deadly serious.Clips: BBCMore on this topic:Putin suggests Nord Stream gas exports to Europe could be restoredNato allies struggle to secure air defence systems for UkraineRussia’s invasion of Ukraine in maps — latest updatesSubscribe to The Rachman Review wherever you get your podcasts - please listen, rate and subscribe.Presented by Gideon Rachman. Produced by Fiona Symon. Sound design is by Breen TurnerRead a transcript of this episode on FT.com Hosted on Acast. See acast.com/privacy for more information.