As the Wa army assumed that Buyeo Pung (Hosho FUYO) was still remaining at the Suru-jo Castle, they tried to rescue him and recklessly carried out a plan of breaking through enemy lines at the Battle of Hakusukinoe, but they were defeated by the Tang army.
倭軍は扶余豊（扶余豊璋）が周留城にいると考え、その救援をはかり、白村江の戦いで無謀ともいえる敵中突破作戦を遂行するが、唐水軍の前に敗退した。