It was the turning point of the Civil War, and the biggest, bloodiest battle ever fought on American soil. As the Union and Confederate armies collided at Gettysburg, Pennsylvania, the nation was changed forever. General Robert E. Lee gambled his army and the future of the Confederacy in one epic battle during three days in American history. Part of "The Unknown Civil War" series. Please note this title contains images from battles including corpses. Additionally, topics in this title pertain to the American Civil War and may contain references, phrases, images, or other notions of a sensitive nature.