"battle against the Tang Dynasty" . "644 invasion of Karasahr" . . . "*Tang military garrison installed in Karasahr" . "China" . "invading and annexing Karasahr" . "Karasahr" . "648 invasion of Karasahr" . "annexed Yanqi" . "Karasahr in 644" . . . "Western Turkic Khaganate" . "invade and annex" . "captured by Tang forces" . . . "5,000 Western Turkic cavalry" . "DecisiveTangvictory" . "Tang campaigns against Karasahr" . . . "military campaign" . "Karasahr" . "Tang dynasty" . "3,000 infantry and cavalry" . "Tang Dynasty" . "Conquest of Karasahr" . "Tang control of Karasahr" . . . "conquest of Karasahr in 644" . . "Unknown number of Karasahr troops" . "Tang campaigns against Karasahr" . . . . . "military campaign against Yanqi" . . . "captured by the Tang" . . . "*Tang loyalist is enthroned as ruler and Tang control of Karasahr is re-established (648)" . . "in 644" . "surprise attack on Yanqi" . "*Indo-EuropeanTocharianinfluence in Central Asia declines" .