When Xiahou Dun arrived at Bowang, he selected half of his troops to be the vanguard while the rest defended the supplies. Zhao Yun and Liu Bei consecutively came to challenge Xiahou Dun, then feigned defeat and retreated to lure Xiahou Dun to chase them. When Xiahou Dun personally led the pursuit, his deputy Han Hao cautioned him against ambushes, but Xiahou replied, "I see that the enemy is so weak. Even if they set ambushes on ten sides, I have nothing to fear." As Xiahou Dun ventured deeper into the valley, Liu Bei came to engage him again but retreated soon. Xiahou Dun laughed and said to Han Hao, "So this is the ambush you were talking about!", and then advanced towards Xinye.