Admiral James Stavridis, USN (Ret.) spent more than thirty years in the U.S. Navy, rising to the rank of four-star admiral. He was Supreme Allied Commander at NATO and previously commanded U.S. Southern Command, overseeing military operations through Latin America. At sea, he commanded a Navy destroyer, a destroyer squadron, and an aircraft carrier battle group in combat. He holds a PhD from the Fletcher School of Law and Diplomacy at Tufts University, where he recently served five years as dean. He received fifty medals in the course of his military career, including twenty-eight from foreign nations. He has published thirteen other books and is chief international analyst for NBC News and a Bloomberg Opinion weekly columnist. He is currently the vice chair, global affairs of the Carlyle Group, and the chair of the board of the Rockefeller Foundation.