Frank Hoffman holds an appointment as a distinguished research fellow at the National Defense University in Washington, DC. He is a retired U.S. Marine infantry officer. His forty-two years in the U.S. defense establishment includes senior political appointments at the Pentagon, ten years at Headquarters Marine Corps, and a decade at NDU’s Institute for National Strategic Studies. In addition to his research portfolio in strategy and military innovation, he has taught at the National War College. He earned his PhD in war studies from King’s College, London.