JamesWilliamsVass, North Carolina

You don’t want to mess with Sensei James Williams. A former U.S. Army officer with more than 50 years of experience in the martial arts, he developed The System of Strategy. It’s a unique approach to unarmed combat that he teaches to Special Operations units and law enforcement worldwide. When he is armed, though, you’ll find him brandishing blades he’s created, like the Hisshou^® and Hissatsu™ fixed blades, the Shizuka noh Ken^™, and the now-legendary Hissatsu^™ folder.