Lt. Gen. Mark Hertling (Ret.) joins Nicolle Wallace on MS NOW’s "The Best People" to discuss his new book, If I Don’t Return. In this wide-ranging interview, Hertling shares raw reflections on his three combat deployments and offers a candid critique of current leadership at the White House and the Pentagon.

Lt. Gen. Mark Hertling (Ret.) joins Nicolle Wallace on MSNBC’s Deadline: White House to provide national security analysis. Drawing on his experience as the former Commander of U.S. Army Europe and his 38 months in combat, Hertling discusses the strategic and moral responsibilities of military leadership in the modern era.