A unique manual for mandatory study by professionals and amateurs of martial arts, coaches and athletes, employees of law enforcement agencies, as well as everyone who wants to take care of their own safety. The book provides a step-by-step guide to the use of about 100 self-defense techniques without weapons against violent aggression, namely: against grabs, strangulation, bending, against attacks when you are in a prone position. The book is based on a real training course for reconnaissance fighters, having mastered which you will be able to effectively protect yourself from an aggressive, free-handed offender.