In most battles, Xiang Yu rarely paid sufficient attention to resource logistics. In this battle, Zhang Liang was successful in assaulting Xiang Yu's supply lines, which Xiang Yu did not care much about, and this greatly hurt the Chu army's effectiveness. On the other hand, Zhang Liang was successful in keeping the Han supply lines open. During a conversation, Xiang Yu's archer hit Liu Bang with an arrow, which wounded his lung. However, Liu Bang was able to hide this fact from his own army and Xiang Yu, hence keeping the morale of the Han troops high.