On July 2nd, 1863, forces from the Confederacy's Army of Northern Virginia and the Union's Army of the Potomac clashed over the steep, rocky hill known as Little Round Top. This battle was one of the most brutal and devastating engagements of the American Civil War, and the North's bloody victory there insured their triumph at Gettysburg, setting the stage for the South's ultimate defeat. Using newly discovered documents and rare firsthand sources,...