Political, religious and criminal terrorism is currently one of the biggest threats in the world. Explosions, seizures of hostages, ships and aircraft, murders and arson have become characteristic of many countries, including Russia. The practical fight against terrorists is carried out by special forces. This book systematizes information from open publications that provide clear answers to questions related to actions of assault groups - the “shock part” of such formations. The book is intended for a wide range of readers, but primarily for intelligence officers, journalists and politicians.