佐賀の乱
In February 1874, Sakuma participated in the suppression of the Saga Rebellion, during which time he led a column of troops from Kumamoto Castle. He then participated in the Taiwan Expedition of 1874, where on May 22 he commanded the 150 strong force of soldiers that was ambushed by aborigines, initiating the Battle of Stone Gate. During the Satsuma Rebellion, he was commander of the IJA 6th Infantry Regiment. He was promoted to colonel in 1878. In February 1881, Sakuma was promoted to major general in command of the Sendai military district.