The book "Tactics and Responsibilities when Fighting in the Trenches" became a real guide for the military during the First World War. The authors, Bertrand Bertrand and Oscar N. Zolbert, have collected important tips and tricks for trench warfare in one publication. The book describes in detail the tactics and strategy of fighting in the difficult conditions of the trench military segment. The authors consider various aspects of combat operations in the trenches, from the planning of attacks to the organization of defense. They provide the reader with comprehensive explanations of the importance of coordinating actions and efficient use of limited resources in such conditions. In addition, the book contains recommendations for preparing soldiers for combat, which can help improve their effectiveness on the battlefield. "Tactics and Duties for Trench Fighting" is considered one of the classic sources of knowledge on the tactics of military operations in the trenches and a useful book for anyone interested in military affairs and the history of warfare.