The combination of the generals gave great confidence to the troops and when the battle was joined at Chöng-ju the Mongol forces were badly defeated. A Mongol general’s body was taken and sent all about that section to encourage the people and make them believe their troubles were near an end. Gen. Yi blamed the other generals for not following up their advantage and they became angry and said “If you are so brave, you had better try it yourself.” So the very next day he led the army out and surrounded the Mongol forces at Su-ju near the sea, where another glorious victory was won. That night the remnant of the Mongols fled back to the Yalu. Gen. Yi gave chase and it is said that only seventeen of the Mongol army got back in safety across that Rubicon of Korea. This done, Gen. Yi returned to his northeast province and drove back to their haunts the wild tribe who had taken advantage of his absence. Gen. Yi T’ă-jo was steadily rising in favor although like Wang-gön he wisely stayed as far as possible from his royal master. The king now conferred upon him the title of Mil-jik-sa which means “The Messenger who Restores Confidence and Firmness.” The Japanese had not ceased their incursions. Only a year had passed since 200 boat loads had ravaged the southern coast and now a like number swept the island of Kal-do in the south, so that from many a district no revenue rice was forthcoming. It is to be feared that this was the principal cause of uneasiness in Song-do—the loss of revenue. Troops were sent and a fleet of eighty war boats to guard the coast and to convoy the revenue junks, but these unexpectedly fell in with a Japanese fleet and were all lost. This disaster caused a panic among the people of Kang-wha and Kyo-dong Island. The governor of Chŭl-la Province came northward with troops guarding the revenue but he too met Japanese and lost all the rice and half his men. This same year 1364 a Mongol official told the emperor that the king of Koryŭ ought to be allowed to retain his position; and the emperor listened to him. The renegade Ch‘oe Yu was sent back to Koryŭ where he was imprisoned and executed. The Koryŭ envoy Yi Kong-su also returned from Peking. A very neat story is told of him. As he was pursuing his way across a wide plain which seemed to have no inhabitants he was obliged to feed his animals with the standing grain. When he was preparing to resume his way he took a bolt of linen and wrote upon it “The price of grain,” and left it among the standing barley. His attendants said, “But the owner of the grain will never get it. Someone will steal it.” The envoy replied, “That is not my affair. I will have done my duty.” The king wished the emperor to send the would-be king to Koryŭ but to this consent was not given.