The book is dedicated to the history of the advanced dressing detachment that operated during the First World War on the Southwestern Front in combat conditions. The transport was headed by the Frenchman Count Alexandre du Chail, a man of a bright and difficult destiny. The publication represents a unique study of its kind and reveals one of the pages of the sacrificial service of the Orthodox Church to the suffering Fatherland. The book is intended for a wide range of readers interested in the First World War, the history of the Russian Orthodox Church, as well as military medical institutions.