Translated by Nathalie GAUTHIER • On the front, the smallest unit occupying the trenches was the squad under the supervision of a sergeant. • Composed of fifteen men, it was divided into three groups led by a corporal. • In the trench, during periods of wakefulness, only the necessary staff was mobilized to monitor the occurrence of the danger and the movements of the enemy. • The rest of the troop attended to building operations, supplying and reinforcement or rested in shelters made in (...)