Bertoni Defense System was created to be resource for those who desire to learn how to better protect themselves and those they love by studding personal safety and reality based self-defense. 

 
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Yawara Stick Starter Guide

Kickstart your training by downloading your yawara stick starter guide. This guide will give you all the basics you need to get started with learning the yawara stick. The guide includes body conditioning, movements, stances, strikes and more. Enter your email below to receive your guide.