In Yunnan province military leaders including Tang Jiyao , Cai E and Li Liejun declared Expressing_publicly their independence and launched Military_operation military expeditions against Yuan Shikai .

The conquest Conquering of the Western Turks , known as the Western Tujue in Chinese sources , was a military campaign Military_operation in 657 led by the Tang Dynasty general Su Dingfang against the Western Turkic Khaganate ruled Control by Ashina Helu .

Several of the oasis states had once been vassals of the Tang Dynasty , but switched Change their allegiance to the Western Turks when they grew Coming_to_be suspicious Know of the military ambitions of the Tang .

Several of the oasis states had once been vassals of the Tang Dynasty , but switched Change their allegiance to the Western Turks when they grew Coming_to_be suspicious Know of the military ambitions of the Tang .

Tang expansion Expansion into Central Asia continued with the conquest Conquering of Karasahr in 644 and Kucha in 648 .

The Tang troops were reinforced Cause_change_of_strength by cavalry supplied by the Uyghurs , a tribe that had been allied Collaboration with the Tang since their support Supporting for the Uyghur revolt Change_of_leadership against the Xueyantuo .

The Tang troops were reinforced Cause_change_of_strength by cavalry supplied by the Uyghurs , a tribe that had been allied Collaboration with the Tang since their support Supporting for the Uyghur revolt Change_of_leadership against the Xueyantuo .

The victory strengthened Cause_change_of_strength Tang control Control of the Western Regions , now modern Xinjiang , and brought the regions formerly ruled Control by the Khaganate into the Tang empire .

The victory strengthened Cause_change_of_strength Tang control Control of the Western Regions , now modern Xinjiang , and brought the regions formerly ruled Control by the Khaganate into the Tang empire .

The Tang Dynasty achieved Achieve its maximum extent as China 's western borders reached Arriving the eastern frontier of the Arabic Umayyad Caliphate .

Later on , Turkic revolts Change_of_leadership ended Process_end Chinese hegemony beyond the Pamir Mountains in modern Tajikistan and Afghanistan , but a Tang military presence remained Temporary_stay in Dzungaria and the Tarim Basin .

Turkic culture and language spread Dispersal into Central Asia , as did artistic and political influences Influence from the Tang Dynasty .

Many of the Tang generals and soldiers stationed Placing in the region were ethnically Turkic , and the prevalence of Indo-European languages in Central Asia declined Cause_change_of_position_on_a_scale with acceleration Cause_change_of_position_on_a_scale of Turkic migration .

The Turks , Tibetans , and the Tang competed Competition for control Control over Central Asia for the next few centuries .

In the 7th-8th century Tang , Turks and Tibetans warred Hostile_encounter for control Control , and the Tang dynasty shortly established Creating the Anxi Protectorate of Xinjiang and Central Asia .

In the 7th-8th century Tang , Turks and Tibetans warred Hostile_encounter for control Control , and the Tang dynasty shortly established Creating the Anxi Protectorate of Xinjiang and Central Asia .