Ban Yong, with Zhang Lang, the Governor of Dunhuang, , in 127 attacks seventeen kingdoms, including Karashahr, Kucha, Kashgar, Khotan, and Yarkand.

The Han forces first subdue Karashahr; then …

…Xuanzang escapes robbers to reach Yanqi, then …

Emperor Taizong sends an Chinese expeditionary force to invade and annex the Tarim Basin kingdom of Karasahr in Xinjiang, a vassal of the Western Turkic Khaganate.

The oasis state is conquered and Western Turks moving to assist Karasahr are defeated by the Tang forces.

Tang general Ashina She'er re-establishes Tang control of Karasahr and …