Admiral isun shin's victories on the southern coast had destroyed the japanese navy's ability to establish supply lines. China, now fully aware of the threat hiteoshiposed, had answered korea's call for help. A huge chinese was on the way. The Korean army may have been a stranger to real war, but the chinese army was not. They had had plenty of practice putting down raids and rebellions,. Their commanders were competent and often very brave. With this massive relief force, they push the starving japanese forces out of the northern city of pung yang, then the capital city of sol.