NICHOLAS IRVING is the New York Times bestselling author of The Reaper and Way of the Reaper. He's spent six years in the Army's Special Operations 3rd Ranger Battalion 75th Ranger Regiment, serving from assaulter to Sniper Team leader. He was the first African American to deploy in the G.W.OT. as a sniper in his battalion and is now the CEO of his own company. He also appeared as a mentor on the Fox reality show American Grit, Discovery Channel's Master Of Arms, and has consulted on various films and T.V. shows. He lives in San Antonio, Texas.

Brigadier General A.J. TATA, U.S. Army (Retired), commanded combat units in the 82nd and 101st Airborne Divisions and the 10th Mountain Division. His last combat tour was in Afghanistan in 2007 where he earned the Combat Action Badge and Bronze Star Medal. He is a frequent Fox News, CNN, and One America News military analyst and is the author of nine bestselling novels including the Threat Series and the Captain Jake Mahegan Series.