The Battle of Irtysh River () or Battle of Yexi River () was a battle in 657 between

Tang Dynasty The Tang dynasty (, ; zh, t= ), or Tang Empire, was an imperial dynasty of China that ruled from 618 to 907 AD, with an interregnum between 690 and 705. It was preceded by the Sui dynasty and followed by the Five Dynasties and Ten Kingdom ...

general

Su Dingfang Su Dingfang () (591–667), formal name Su Lie () but went by the courtesy name of Dingfang, formally Duke Zhuang of Xing (), was a Chinese military general of the Tang Dynasty who succeeded in destroying the Western Turkic Khaganate in 657. He wa ...

and the

Western Turkic Khaganate The Western Turkic Khaganate () or Onoq Khaganate ( otk, 𐰆𐰣:𐰸:𐰉𐰆𐰑𐰣, On oq budun, Ten arrow people) was a Turkic khaganate in Eurasia, formed as a result of the wars in the beginning of the 7th century (593–603 CE) after t ...

qaghan

Ashina Helu Ishbara Khagan (Old Turkic: 𐰃𐱁𐰉𐰺𐰀𐰴𐰍𐰣, Ïšbara qaγan, , personal name Ashina Helu - ) (ruled 651–658) was the last khagan of the Western Turkic Khaganate. Name The khagan's underlying Turkic name, transcribed with Ch ...

during the Tang campaign against the Western Turks. It was fought along the Irtysh River near the Altai Mountains. Su Dingfang deployed his infantry in the south, and cavalry in the north behind a hill. Helu's forces, consisting of 100,000 cavalry, surrounded and charged at the Chinese infantry 3 times, all of the charges were repelled. Then Helu's forces were ambushed by the Tang cavalry from the north. Helu was defeated during Su's surprise attack, and lost most of his soldiers. Turkic tribes loyal to Helu surrendered, and the retreating Helu was captured the next day. Helu's defeat ended the Western Turkic Khaganate, strengthened Tang control of

Xinjiang Xinjiang, SASM/GNC: ''Xinjang''; zh, c=, p=Xīnjiāng; formerly romanized as Sinkiang (, ), officially the Xinjiang Uygur Autonomous Region (XUAR), is an autonomous region of the People's Republic of China (PRC), located in the northwest ...

, and led to Tang suzerainty over the western Turks.

References

Irtysh River 657 Irtysh River Military history of the Göktürks Chinese Central Asia History of Kazakhstan 7th century in China Western Turkic Khaganate {{China-hist-stub