As first lady Jill Biden began a tour in eastern Europe, Ukrainian forces have gone on the offensive in northeastern Ukraine. Yet one of the deadliest sieges during the battle for Kyiv in April was in Chernihiv, outside the capital. Ukrainian forces there stopped Russia forces from advancing south as they left a trail of destruction. Nick Schifrin reports on the aftermath and signs of renewal. Stream your PBS favorites with the PBS app: https://to.pbs.org/2Jb8twG Find more from PBS NewsHour at https://www.pbs.org/newshour Subscribe to our YouTube channel: https://bit.ly/2HfsCD6 Follow us: Facebook: http://www.pbs.org/newshour Twitter: http://www.twitter.com/newshour Instagram: http://www.instagram.com/newshour Subscribe: PBS NewsHour podcasts: https://www.pbs.org/newshour/podcasts Newsletters: https://www.pbs.org/newshour/subscribe