This book will look at the person he chose to make that support a reality, Brigadier General Montgomery C. Meigs, who served as the Quartermaster General of the Union Army. Although BG Meigs was commissioned as an engineer with no formal logistics training, his pre-Civil War assignments, innate intelligence and integrity, as well as an iron will all contributed to his ability to succeed in arguably one of the toughest assignments in the military at that time. His performance as the Quartermaster General was nothing short of phenomenal. Reviewing his performance, methods, and execution during campaigns throughout the war, the book will suggest answers to the following questions: To what extent did Montgomery C. Meigs contribute to the Union success in the American Civil War? Did Jominian principles shape his approach? Are Jomini's principles still applicable to the modern day execution of logistics?