Revolt against the Chinese in Tarim: Cachera and Turfan are besieged. Luoyang orders the evacuation of Tarim. Ban Chao makes the rebels retreat towards Khotan. At the same time, the Chinese army of Ganzhou reconquers Turfan in Northern Xiongnu. Ban Chao convinces the emperor of the need to control Central Asia in the fight against Xiongnu.