On Sept. 17, at the University of Texas at Austin, General (Ret.) Kenneth F. “Frank” McKenzie Jr. spoke about his book, “The Melting Point: High Command and War in the 21st Century.” This discussion, moderated by Joseph Maguire, covers Gen. McKenzie’s military career, with a particular focus on his time as commander of U.S. Central Command – which included the withdrawal from Afghanistan and the assassination of Qasem Soleimani.