Zelensky: "We must hold on"

<p>Amid explosions in Kyiv and an attack just six miles from NATO's eastern frontier, Ukraine's president issues a fresh statement urging his people to stand firm against Russian aggression. This, as a fourth round of negotiations get underway. Today's episode begins with Clarissa Ward reporting from Kyiv.</p><p>To learn more about how CNN protects listener privacy, visit cnn.com/privacy</p><p> </p><p>Learn more about your ad choices. Visit podcastchoices.com/adchoices</p>