Ukrainian President Zelensky on Saturday posted a video of himself bravely walking in the streets of the besieged capital city of Kyiv standing defiant as Russian forces close in bombarding the city and leaving a trail of death and destruction in their wake. Zelensky's refusal to back down in the face of Vladimir Putin's aggression is being seen throughout the world as an inspiring David vs. Goliath battle that may yet end tragically for him and his country. But much depends on what is conceivably going on inside the head of Goliath. Why is Putin doing this? What does he really want? And what, if anything, can the west do to stop him. We talk to two renowned experts on Putin's Russia and Zelensky's Ukraine - Catherine Belton, a special correspondent for Reuters and the author of the book, Putin's People - and also Nina Khrushcheva, a professor of international relations at the New School and the great-granddaughter of another Russian leader, the late Soviet Premier Nikita Khrushchev.GUEST:Catherine Belton (@CatherineBelton), Special correspondent for @Reuters, author of Putin's PeopleNina Khrushcheva (@ninakhrushcheva), HOSTS:Michael Isikoff (@Isikoff), Chief Investigative Correspondent, Yahoo NewsDaniel Klaidman (@dklaidman), Editor in Chief, Yahoo NewsVictoria Bassetti (@VBass), fellow, Brennan Center for Justice (contributing co-host)RESOURCES:Ukrainian President Zelensky's video "This is our land" - Here.Lastest Yahoo News article on Ukraine/Kyiv - Here.Pick. up Belton's book Putin's People - Here. Follow us on Twitter: @SkullduggeryPodListen and subscribe to "Skullduggery" on Apple Podcasts, Spotify, Google Podcasts or wherever you get your podcasts.Email us with feedback, questions or tips: SkullduggeryPod@yahoo.com. See acast.com/privacy for privacy and opt-out information.