According to Captain Chris.
Who Is Captain Chris?
Captain Chris is the world's premier unarmed combat instructor for members of the US & UK Special Forces and dozens of military and para-military professionals and mercenaries around the globe.
He is a fomer military trained interrogator (trained to extract information from enemy combatants) and has black belts in 5 different martial artsincluding Karate, Judo and Jujutsu.
He is also a US Gold Medal Grappling Champion, Silver Medal Grapplers Quest National Champion, and has 147 trophies and medals in dozens of martial arts and fighting styles.
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