JOCKO WILLINK was a Navy SEAL for 20 years, rising through the ranks to become commander of Task Unit Bruiser-the most decorated Special Operations unit of the Iraq War. After retiring, Willink continued on the disciplined path of success, co-founding Echelon Front, a premier leadership and management consulting company, writing the Number 1 New York Times bestsellers Extreme Ownership; Leadership Strategy and Tactics; Discipline Equals Freedom; and The Way of the Warrior Kid children's series. He created and hosts the top-rated podcast, Jocko Podcast, and is also a principal at several highly successful companies, including JOCKO FUEL and Origin USA.

LEIF BABIN served 9 years as a Navy SEAL. He was in combat in Iraq during the Battle of Ramadi, a conflict that resulted in numerous medals for his efforts. After his tours, Babin served as a Navy SEAL instructor before forming Echelon Front with Jocko Willink, a leadership training group that uses the lessons and expertise the pair learned as SEALs to train leaders beyond the military. He is the co-author of the Number 1 New York Times bestseller Extreme Ownership. Babin lives in New York.