The Wu Zhou killed Geolsa Biu, and Dae Jung-sang also died. Dae Geolgeol Jo-yeong integrated the armies of Goguryeo people and some Malgal tribes and resisted Wu Zhou's attack. His victory over the Wu Zhou at the Battle of Tianmenling enabled him to expand his father's empire and claimed himself the King of Zhen in 698. He established his capital at Dongmo Mountain in the south of today's Jilin province, and built Dongmo mountain fortress, which was to become Zhen kingdom's capital.