"Under Fire: The Story of a Squad" (originally titled "Le Feu") is a seminal war novel by French author Henri Barbusse, first published in 1916. Based on Barbusse's own experiences as a soldier in World War I, the novel provides an unvarnished depiction of the brutal realities of trench warfare. It captures the daily life of a French infantry squad, the long periods of waiting interspersed with intense bouts of terrifying combat, and the camaraderie that forms amidst such hardship.

The narrative focuses not just on the physical conditions of the war, but also on the emotional and intellectual impacts on the soldiers. It lays bare the disillusionment and horror faced by the soldiers as they contend with the perpetual threat of death.