Contents -- Acknowledgments -- INTRODUCTION -- CHAPTER ONE: Colonials, Continentals, and Federals: The Origins of American Military Professionalism -- CHAPTER TWO: Tactical Expertise and the U.S. Army before the War with Mexico -- CHAPTER THREE: The Old Army's Vindication: The Mexican War -- CHAPTER FOUR: Tactical Continuity in the Decade before the Civil War -- CHAPTER FIVE: The Beginning of the End: The Old Army on the Precipice -- CHAPTER SIX: War in Earnest: The First Battles of 1861 -- CHAPTER SEVEN: The Peninsula: Lee and McClellan Leave Their Legacies -- CHAPTER EIGHT: Morale, Cohesion, and Competence from Second Bull Run to Missionary Ridge -- CHAPTER NINE: Decisions East and West: The End of the Civil War -- EPILOGUE -- Notes -- Bibliography -- Index -- A -- B -- C -- D -- E -- F -- G -- H -- I -- J -- K -- L -- M -- N -- O -- P -- Q -- R -- S -- T -- U -- V -- W -- Y -- Z.