西山朝
The Battle of Ngọc Hồi-Đống Đa (; ), also known as Victory of Kỷ Dậu (), was fought between the forces of the Tây Sơn dynasty of Vietnam and the Qing dynasty of China in (a place near Thanh Trì) and Đống Đa in northern Vietnam from 1788 to 1789. It is considered one of the greatest victories in Vietnamese military history.