General H.R. McMaster is the Fouad and Michelle Ajami Senior Fellow, Hoover Institution, Stanford University; Bernard and Susan Liautaud Fellow, Freeman Spogli Institute, Stanford University; and a lecturer at the Stanford Graduate School of Business. McMaster was the 26th assistant to the president for National Security Affairs. He served as a commissioned officer in the United States Army for 34 years before retiring as a lieutenant general in June 2018. From 2014 to 2017, he designed the future Army as deputy commanding general, Futures, U.S. Army Training and Doctrine Command. McMaster also served overseas as adviser to the most senior commanders in the Middle East, Iraq, and Afghanistan. He taught history at West Point and is author of the award-winning book, Dereliction of Duty: Lyndon Johnson, Robert McNamara, the Joint Chiefs of Staff, and the Lies that Led to Vietnam. He has published many essays, articles, and book reviews on leadership, history, and the future of warfare in numerous publications, including Foreign Affairs, Survival, The Wall Street Journal, and The New York Times.