A comprehensive reference compiled from Allied intelligence records, this book presents the organizational history and wartime record of Germany’s 251 divisions that fought in World War I. It explains how divisional histories are built from prisoner's statements, captured documents, and front-line observations, and how these details translate into unit strength, morale, and fighting quality. This edition covers each division’s composition, past engagements, recruitment, commanders, and present strength, with a clear, standardized rating system. It offers insight into how the German Army organized and used its divisions across multiple fronts, from Alsace-Lorraine to Meuse and Picardy, through 1914–1918, including the evolving structure of reserve and landwehr units. What you’ll experience A layout that reconstructs a division’s order of battle, key engagements, and leadership - Explanations of how morale and effectiveness were assessed and recorded - Cross-front summaries showing how divisions moved, rested, and fought across campaigns - A consistent reference for researchers and readers interested in World War I order of battle Ideal for readers of military history, intelligence history, and those seeking a concise, source-based understanding of German divisions in World War I.