John D. Hosler is a medieval historian and Professor of Military History at the Army Command and General Staff College. An award-winning scholar with 25+ years teaching experience, he has published 9 books, including a 2018 Financial Times and Times Literary Supplement “Book of the Year.” A dynamic and enthusiastic speaker possessing a keen ability to connect with audiences of all educational and interest levels, he has given 80+ lectures on a wide array of topics related to the intersection of medieval politics, religion, and warfare. He holds a Ph.D. in history from the University of Delaware and is a Fellow of the Royal Historical Society. His past media engagments include: New York Times, Wall Street Journal, Times of Israel, History Channel, CNN, NBC, Zed Films, and the podcast "Sc...