Tang dynasty in Inner Asia
The Tang dynasty in Inner Asia was the expansion of the Tang dynasty's realm in Inner Asia in the 7th and, to a lesser degree, the 8th century AD, in the Tarim Basin (Southern Xinjiang), the Mongolian Plateau, and portions of Central Asia. Wars were fought against the Gokturk Empires and Xueyantuo, but also against many states of Central Asia.
Source: Wikipedia — Tang dynasty in Inner Asia (CC BY-SA 4.0)