Ashina Tuizi escaped the
Tang after the execution of his father at the hands of
Lai Junchen. After arriving in the
Tibetan Empire in 693, he claimed the
Western Turkic Khaganate with regnal title Tong Yabgu Khagan. He was soon joined by his uncles Ashina Babu (阿史那拔布) and Ashina Poluo (阿史那仆罗). In 694, combined forces of Tong Yabgu and Tibetan general
Gar Tsenyen Gungton ("Bolun Zanren" (勃論贊刃) in Chinese) suffered a defeat near
Qinghai Lake against
Wang Xiaojie. Later that year
Tridu Songtsen and Tong Yabgu attacked Lengchen and raided several cities. According to the
Old Tibetan Annals, he was sent to the
Göktürks in 700. Some think he was sent as a reinforcement for Axiji Baolu (阿悉吉薄露), who was thought to be of Western Turkic origin and who started a rebellion against the Tang. Some think he was sent to the
Second Turkic Khaganate as a messenger of the united front with the Tibetan Empire. In 705, he again allied with the Tibetan Empire and conquered the
Fergana Valley. In 706, Tang army was driven off. == References ==