In January and February 1598, the Ulsan Waeseong (Ulsan Japanese Castle), in which Kiyomasa KATO and Yoshinaga ASANO had been holed up, was surrounded by thousands of Ming soldiers led by Military Commissioner Yang Hao.
慶長2年(1597年)12月には、加藤清正、浅野幸長らが篭城していた蔚山倭城が明の援将経理楊鎬の率いる数万の大軍に包囲された。