Olena Zelenska says Ukrainians will endure the winter despite the cold and power cuts caused by Russian shelling. Ukraine’s first lady told the BBC’s Lyse Doucet that Ukraine is facing many challenges, but that a blackout is not the worst thing that can happen to them. Also, one of the country’s richest businessmen, Vsevolod Kozhemyako, talks about his decision to fund a group of soldiers that has become known as the billionaire’s battalion. He’s also fighting alongside them on the battlefield. Today’s episode is presented by Victoria Derbyshire and Vitaliy Shevchenko. The producers were Arsenii Sokolov, Clare Williamson and Luke Radcliff. The technical coordinator was Mike Regaard. The assistant editor is Alison Gee and the editor is Jonathan Aspinwall. Email Ukrainecast@bbc.co.uk with your questions and comments. You can also send us a message or voice note via WhatsApp, Signal or Telegram to +44 330 1239480