This is the title of a book written by Tim Larkin and Chris Ranck-Buhr. It is about combating violence with superior violence. It is about having the mind set to use violence. For when violence is the answer it is the only answer. You may need time to access your firearm or other defensive weapon because of the surprise of the attack and this book tells you how to get that time. I found it a great addition to my library and have implemented it's teaching into my survival mind set.
I am in no way affileated with the authors and am receiving no compensation in any way from them except for the information contained in the book.