DAY 401: More explosions heard in Kyiv

<p>Roughly 24 hours after the attack began, the Pentagon told House members that Russian troops are now 20 miles outside of Ukraine. Civilians are taking shelter or fleeing to Poland as they advance. Meanwhile, President Zelenskyy is urging Ukrainians to take up arms. And it is the largest ground conflict since World War II. Erin McLaughlin joins from Kyiv. Matt Bodner is live in Moscow. And Betsy Woodruff Swan, Hagar Chemali, General Barry McCaffrey, Mike Memoli, Stephanie Ruhle, Clint Watts, Malcolm Nance and Michael Beschloss join.  </p>