A person with a gym bag approaches the entrance of Victory MMA and Fitness, a martial arts and fitness center.
John "Jocko" Willink with a shaved head, wearing a black t-shirt with "VICTORY" partially visible, standing indoors with a neutral expression.

John “Jocko” Willink

Best Selling Author AND Brazilian Jiu-Jitsu Black Belt

Best selling author (Extreme Ownership) and Retired Navy SEAL Commander Jocko Willink, discusses self-defense and the martial arts.

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