The year 1258 had now come, the last that the aged king Ko-jang was destined to see. In this year the Mongols came again as usual. They began by building and garrisoning a fortress at Eui-ju. Then Gen. Cha Ra-dă with a small body of a thousand troops came southwards as far as Su-an in Whang-hă Province. It shows how utterly shorn of power Koryŭ was, that this general should dare to penetrate so far into the land with only a thousand men at his back. Hearing of this the aged king decided to try a little artifice. He came out of Kang-wha, across the straits to Tong-jin on the opposite bank, in order to make it appear that he had complied with the emperor’s command. Gen. Cha demanded that the crown prince also come out. He made a line of camps all the way from Song-do to Tong-jin and settled down as if he intended to stay and see his orders obeyed. The king had retired to the island again upon the near approach of the Mongols and now the latter redoubled their demands and ravaged more remorselessly than ever. They swarmed all about Kang-wha and nothing but a narrow strip of water lay between the king and that more than half savage army. The water proved, however, an effective barrier. All this time another Mongol force under Gen. San Gil-dă was wasting the northern and eastern districts, The people of Wha-ju and of fourteen other towns, led by one Sin Chip-pyŭng sought refuge on Cho-do island but finding this insecure, moved to another; but some Koryŭ renegades led Mongol troops there and overthrew the little colony.
The king now altered his tactics. Sending an envoy to China he said “I have desired to obey the emperor but hitherto I have been prevented by the powerful officials. Now that the viceroy has been put out of the way I will go back to Song-do and do as you shall direct. But we are surrounded by your soldiery and it is hard to move. We are like mice when the cat is about. Let them be ordered back home and I will do as you direct.”
Meanwhile two traitors in the north had overpowered the Koryŭ general and had gone over to the enemy. The whole north was therefore without a single defence and was being held by these two traitors under Mongol orders. Such was the unhappy condition of affairs when the year 1258 came to a close.