Illustrated with over 20 maps and diagrams The Lorraine Campaign: An Overview, September-December 1944 originated at the U.S. Army Command and General Staff College as an introductory lesson to a course on corps operations. It is an adaptation of a narrated slide presentation used to provide students with a historical context on which to base their studies of current doctrine. The Lorraine Campaign, which included failures as well as successes, was chosen because it encompassed a variety of operations that involved such factors as logistics, intelligence, and weather. This overview serves as a point of departure for more in-depth studies, sets the stage for the analysis of unit operations from platoon to corps, and furnishes a useful reference for studying branch operations in battle. Repeated reference to this overview will give students an insight into specific operations or single branch actions. This study also provides a concise summary of Third Army operations in one of the World War II European campaigns.