A book about the events of the dramatic period of Nagorno-Karabakh 1990–1991. The author, a Russian officer, at that time the chief of staff of the Investigative Operational Group of the USSR Ministry of Internal Affairs in NKAO, managed to break through the muteness of the Karabakh hard times and, with documentary accuracy, leave reliable evidence about the participants and leaders of the Karabakh movement and underground, as well as about employees of the USSR Ministry of Internal Affairs, officers and ordinary internal troops who, under extreme conditions, managed to combine the performance of official duty with the dictates of their conscience. Designed for a wide range of readers.