No sooner had the Chinese army reached the Liao River than the engineers set to work bridging the stream. So energetically was the work done that in two days a double span was thrown across. There had been a miscalculation however, for it fell six feet short of reaching the eastern bank, and the Ko-gu-ryŭ soldiers were there to give them a warm welcome. The Chinese troops leaped from the unfinished end of the bridge and tried to climb up the steep bank, but were again and again driven back. The eastern bank was not gained until Gen Măk Chŭl-jang leaped to the shore and mowed a path for his followers with his sword. At this point the Ko-gu-ryŭ generals Chön Sa-ung and Măng Keum-ch’a were killed. When the whole army had effected a crossing the Emperor sent 1200 troops to occupy the fortified town of Liao-tung but the Ko-gu-ryŭ general, Eul-ji Mun-dŭk, hastened thither and drove back this detachment of Chinese in confusion. The Emperor learned of the retreat and proceeded toward the scene of action. When he came up with the flying detachments of his defeated force he severely reprimanded the generals in charge and chided them for being lazy and afraid of death. But it was now late in June and the rainy season was at hand, so the Emperor with his whole army went into camp at Yuk-hap Fortress a little to the west of the town of Liao-tung, to await the end of the wet season. He was unwilling however to let all this time pass without any active work; so he sent a fleet of boats by sea to sail up the Ta-dong River and attack P’yüng-yang. This was under the leadership of Gen. Nă Ho-a. Landing his force on the bank of the Ta-dong, sixty _li_ below the city, he enjoyed there a signal victory over a small force which had been sent to head him off. This made the general over-confident and in spite of the protests of his lieutenants he marched on P‘yŭng-yang without an hour’s delay. With twenty thousand troops he went straight into the town, the gates being left wide open for him. This was a ruse on the part of the Ko-gu-ryŭ forces. A strong body of Ko-gu-ryŭ troops had hidden in a monastery in Nă-gwak Fort on the heights within the city. The Chinese found themselves entrapped and Gen. Nă was forced to beat a hasty retreat with what forces he had left, and at last got back to Hă-p’o (harbor) in Liao-tung. What the Emperor said to him is not known but it could not have been flattering.