Book excerpt: The noted military historian presents an illuminating study of trench warfare during WWI—and how it influenced the French Army’s evolution. Michel Goya’s Flesh and Steel during the Great War is a major contribution to our understanding of the French Army’s experience on the Western Front, and how that experience impacted the future of its military theory and practice. Goya explores the way in which the senior commanders and ordinary soldiers responded to the extraordinary challenges posed by the mass industrial warfare of the early twentieth century. In 1914 the French army went to war with a flawed doctrine, brightly-colored uniforms and a dire shortage of modern, heavy artillery. How then, over four years of relentless, attritional warfare, did it become the great, industrialized army that emerged victorious in 1918? To show how this change occurred, the author examines the pre-war ethos and organization of the army. He describes in telling detail how, through a process of analysis and innovation, the French army underwent the deepest and fastest transformation in its history.