(Definition of harp on (about sth) from the Cambridge Advanced Learners Dictionary & Thesaurus Â© Cambridge University Press).
Battle of Saratoga. In late September and during the first week of October 1777, Gate's American army was positioned between Burgoyne's army and Albany. On October 7, Burgoyne took the offensive. The troops crashed together south of the town of Saratoga, and Burgoyne's army was broken. In mop-up operations 86 percent of Burgoyne's command was captured.
True. The battle was fought on 10 November 1782 by American forces against Loyalist and Indian forces. It was a raid on a Shawnee Indian village in the Ohio Territory, 13 months after the British surrender at Yorktown.