This book briefly and consistently presents chronological data about the Cossack troops and their primary units based on existing printed information. The value of this reference publication lies in the documentary validity of the data presented here, which tells us about the heroic past of the Cossacks. The publication describes brief histories of the Cossack units of the Russian army, chronological information, names and renamings, commanders, chiefs, combat path, awards of cavalry units. The work of Vladimir Khristoforovich Kazin “Cossack Troops” can be called the genealogy of all Cossack troops in Russia.