Ban Chao was recalled to Luoyang, but then sent again to the Western Region area four years later, during the reign of the new emperor Han Zhang Di. He obtained the military help of the Kushan Empire in 84 in repelling the Kangju who were trying to support the rebellion of the king of Kashgar, and the next year in his attack on Turpan, in the eastern Tarim Basin. Ban Chao ultimately brought the whole of the Tarim Basin under Chinese control.