Sensei Eric Greitens is a Black Belt in Hojutsu. He holds a 2 nd Dan in Taekwondo, and won the Gold Medal at the US National Taekwondo Federation National Championships in Black Belt sparring. Greitens also won the Gold Medal at the BUSA National Championships in Boxing, and holds two Oxford Boxing Blues. A Navy SEAL, Greitens is a recipient of the Bronze Star, the Purple Heart, and the Combat Action Ribbon. In addition to his martial studies, Greitens is a sub-three hour Marathon runner, the winner of 2007 Shamrock Marathon in Fallujah, Iraq, and in 2021 Greitens won two Gold Medals in the 4x100m and 4x400m relays at the USA Track and Field Masters National Championships. He is the author of the New York Times Bestsellers, The Heart and The Fist, and Resilience.