They say that historical time does not coincide with formal chronology. If we agree with this, then our 21st century began not in 2000, but on September 11, 2001, when the United States was attacked by unknown terrorists. Since then, terrorism has become humanity's No. 1 enemy. A new book by the famous Russian criminologist, retired police major general, doctor of legal sciences Vladimir Obninsky is devoted to such legal, humanitarian and social aspects of the international war on terrorism as the interaction of the state and a combatant who has returned to peaceful life - a member of illegal armed groups. How and in what case should the state react harshly to his return to society, and in what case should he show reasonable tolerance and limit himself to supervision and re-education? A separate topic is working with children, teenagers and women who were exposed on the battlefields of the Middle East, Africa and Southeast Asia.