The Battle of Aksu was fought between Arabs of the Umayyad Caliphate and their Turgesh and Tibetan Empire allies against the Tang dynasty of China. In 717 AD, the Arabs, guided by their Turgesh allies, besieged Buat-ɦuɑn (Aksu) and Dai-dʑiᴇk-dʑiᴇŋ (Uqturpan) in the Aksu region of Xinjiang. Tang troops backed by their protectorates in the region attacked and routed the besieging Arabs forcing them to retreat.[1]