The EU plans a total ban on Russian oil imports by the end of the year, among other new proposed sanctions designed to make Russia pay a high price for aggression. Victoria and Vitaly speak to the economist Timothy Ash about how reliant Europe’s energy supply is on Russia and how much longer President Putin can afford his war bill. We also hear from the BBC Ukrainian Service’s Anastasia Gribanova, who’s in Lviv, where Russian missiles have hit targets in an attempt to disrupt the railway network in western Ukraine. This episode of Ukrainecast was made by Daniel Wittenberg with Osman Iqbal and Chris Flynn. The technical producer was Emma Crowe. The editor is Jonathan Aspinwall. Email Ukrainecast@bbc.co.uk with your questions and comments. You can also send us a message or voicenote via WhatsApp to +44 0330 1234 220.