Sebastian Gorka, Ph.D., nationally syndicated radio host of "America First with Sebastian Gorka," internationally recognized authority on national security, strategy, and counterterrorism, and author of the New York Times bestseller Defeating Jihad, holds the Major General Matthew C. Horner Distinguished Chair of Military Theory at the Marine Corps University. He is a regular lecturer for U.S. Special Operations Command, the FBI's Counterterrorism Division, and the Green Berets, and he has briefed the CIA, the Defense Intelligence Agency, and the National Intelligence Council. A Breitbart News contributor and frequent guest on the Fox networks as well as the BBC, CNN, and Sky News, Dr. Gorka is the chairman of the Threat Knowledge Group and a recipient of the Joint Civilian Service Commendation, awarded by U.S. Special Operations Command.