The Jin left then became a holding force, fixing the Chu center and preventing it from attacking the Jin centre or aiding the Chu left wing, since in either case the Jin left would have taken it in the flank and rear. Meanwhile, Hu Mao's Jin right wing had skirmished with the enemy, faked a retreat and carried with them the two great banners of the Jin commander-in-chief himself. The Chu left, made up of levies from the states of Shen and Xi, thought that the Jin right wing had lost and Ziyu ordered a pursuit. A contingent of chariots under Luan Zhi swept in front and dragged tree branches to raise a dust cloud and thereby obscure the movements of Hu Mao's men who were circling and reforming.