Gao Xianzhi

Gao Xianzhi, or Go Seonji, was a Tang dynasty general of Goguryeo descent. He was known as a great commander during his lifetime. He is most well known for taking part in multiple military expeditions to conquer the Western Regions, over the Pamir Mountains, and reaching the Aral Sea and the Caspian Sea. In 751 he commanded the Tang forces during the Battle of Talas, fighting against the Abbasid Caliphate. The Tang defeat at the Talas River is considered to mark the end of both Tang western expansion and Abbasid eastern expansion.