A native of Omaha, I attended Creighton Prep High School and the US Military Academy at West Point. I attended Oxford University as a Rhodes Scholar, eventually earning my doctorate; it was published as Learning to Eat Soup with a Knife. I served in the US Army for twenty years, seeing combat in both Iraq Wars and helping write the US Army/Marine Corps Counterinsurgency Field Manual. I served as the second President of the Center for a New American Security in Washington, DC and have taught undergraduates at West Point and at the US Naval Academy and graduate students at Georgetown University before becoming Headmaster of The Haverford School. My book KNIFE FIGHTS: A Memoir of Modern War in Theory and Practice, will be published by Penguin on October 16th.