Shimazu Yoshihiro
The Fourth Division under the command of Mōri Yoshinari set out eastward from the capital city of Hanseong (present-day Seoul) in July, and captured a series of fortresses along the eastern coast from Anbyon to Samcheok. The division then turned inward to capture Jeongseon, Yeongwol, and Pyeongchang, and settled down at the provincial capital of Wonju. There Mōri Yoshinari established a civil administration, systematized social ranks according to the Japanese model, and conducted land surveys. Shimazu Yoshihiro, one of the generals in the Fourth Division, arrived at Gangwon late, due to the Umekita Rebellion, and finished the campaign by securing Chuncheon.