The Battle of Pine Mountain refers to an engagement during the American Civil War between the Union Army and the Army of the Confederate States of America that took place in June, 1864. The battle took place during General William T. Sherman's Atlanta Campaign that took place in the summer of 1864. Pine Mountain was located near Kennesaw Mountain, and was one of a series of engagements that took place in the area.
Thaddius Riker, a distant ancestor of Kyle Riker and his son William was present at the battle. Another Union solider saved the life of Thaddius by carrying him away from the battle to receive medical attention after Thaddius had been wounded. In the 24th century it was revealed that the solider was in fact a member of the Q Continuum named Quinn who saved the life of Thaddius. (VOY episode: "Death Wish", ST - The Lost Era novel: Deny Thy Father)