On February 2, 1593, a large Ming army, dispatched by the central government and led by Li Ru-song, raided Pyeongyang Castle, which was being guarded by Yukinaga KONISHI and others, and Konishi's troops, who had retreated from the castle on the verge of fall, were sheltered by Nagamasa in Shirakawa-jo Castle.
文禄2年（1593年）正月に中央から派遣された李如松率いる明の大軍が小西行長等の守る平壌城を急襲し、落城寸前の状態から撤退してきた小西軍を長政は白川城に収用した。