Have you ever heard of a Navy SEAL whose life’s mission was lightened by jiu-jitsu practice? Meet John Gretton, known as Jocko Willink. This incredible figure, a former Navy SEAL and well-recognized leadership expert, has started on an unprecedented adventure that has brought him deep into Brazilian Jiu-Jitsu. Jocko Willink’s inspiring speeches, insightful quotes, and […]