Combat, the most intense and dynamic environment imaginable, teaches the toughest leadership lessons, with absolutely everything at stake. Jocko Willink and Leif Babin learned this reality first-hand on the most violent and dangerous battlefield in Iraq. As leaders of SEAL Team Three’s Task Unit Bruiser, their mission was one many thought impossible: help US forces secure Ramadi, a violent, insurgent-held city deemed “all but lost.” In gripping, firsthand accounts of heroism, tragic loss, and hard-won victories, they learned that leadership - at every level - is the most important factor in whether a team succeeds or fails.