Mr. Colby is a principal at the Marathon Initiative. As deputy assistant secretary of defense for strategy and force development, he served as the lead official in the development of the 2018 National Defense Strategy. He is the author of The Strategy of Denial: American Defense in an Age of Great Power Conflict.
Strategic Stability: Contending Interpretations – 2013
Trump’s World : The Foreign Policy Legacy of the “America First” President (FOREIGN AFFAIRS ANTHOLOGY) – 2020
The Strategy of Denial: American Defense in an Age of Great Power Conflict – 2021