This biography of America's twentieth president sheds light on his Civil War years, when he served as a major general for the Union Army.   While his presidency was tragically cut short by his assassination, James Abraham Garfield's eventful life covered some of the most consequential years of American history. When the United States was divided by war, Garfield was one of many who stepped forward to defend the Union. In this biography, historian Daniel J. Vermilya reveals the little-known story...