The monograph is dedicated to one of the key periods in the history of the Yenisei Cossacks - the revolutionary events of 1917 and the ensuing Civil War of 1917-1922. Based on a wide range of sources, the author reconstructs the picture of the participation of the Yenisei Cossacks in the socio-economic and political life of Russia during this period. Particular attention is paid to the armed struggle of the Yenisei Cossacks against Soviet power during the Civil War and the first post-war years.