The Principles of Defense

The concepts used in American Ninjutsu by: Ray Rentsler

A Note To Training Members

It is very important to understand the principles in this book. Students over the years have talked about a day when everything just clicked. The “click” happens when the principles of defense come together with the physical training. Most students “clicked” between blue belt and brown belt. The objective of this book is to have the “click” happen sooner.

This book will also help those who want a good foundation in self defense.

The principles will help with the understanding of the physical side of personal defense.

Don’t worry if you do not completely understand the principles in this book right away. As you progress through classes, a moment will come when the principle will click with the application. Some principles are easier to grasp than others, just remember to never give up and keep referring to this book.

After each principle some space is left open you can write notes of your own.

Record the things that help make the principles click, techniques that relate to the principle, dates that something clicked or rank that the principle made sense. It will be a diary of sorts on your self defense journey.

Good luck and good training,

Ray Rentschler