Complex sentence: With these preparations thus made, Hidemoto and his mutual supporters led the initial Japanese offensive within the Korean province of Gyeongsang, where they marched towards Jeonju after assaulting Busan, presently taking both Sacheon and Changpyong.
Split into simpler sentences: With these preparations thus made, Hidemoto and his mutual supporters led the initial Japanese offensive within the Korean province of Gyeongsang. They marched towards Jeonju after assaulting Busan, presently taking both Sacheon and Changpyong.