The book by M. A. Vasilchenko reveals the degree of participation of soldiers and officers of the Czechoslovak Corps at the initial stage of the Civil War in the Volga region. The monograph traces the process of transformation of Czech units from an integral part of the Russian army into a national military formation pursuing narrow national interests in the conditions of Civil War. The author introduces the concept of “autonomization” into scientific circulation, which is successful enough to describe this process.