Nearly four million refugees have fled the war in Ukraine since it began a month ago. It's the biggest movement of people since records began. We hear stories from the Polish border, as this wave of humanity crosses through.This podcast was brought to you thanks to the support of readers of The Times and The Sunday Times. Subscribe today and get 3 months' subscription for just one pound at: thetimes.co.uk/storiesofourtimes. Guests:Roger Boyes, Diplomatic Editor, The Times.Natalia Gryvnyak, Ukrainian journalist.Host: Manveen Rana.Clips: Times Radio, LA Times, Euronews. For information on how to help the people of Ukraine visit: https://www.thetimes.co.uk/article/how-to-help-ukraine-uk-v8grddrs8 See acast.com/privacy for privacy and opt-out information.