Previous armed resistance to Japanese imperial authority had been dealt with harshly, as demonstrated by responses to previous uprisings, such as the
Tapani Incident, which resulted in a cycle of rebel attacks and harsh Japanese retaliation. However, by the 1930s, armed resistance had largely been replaced by organised political and social movements among the younger Taiwanese generation. Direct police involvement in local administration had been relaxed, many harsh punishments were abolished, and some elements of self-government, albeit of questionable effectiveness, had been introduced to colonial Taiwan. However, a different approach was used in order to control
Taiwan's indigenous peoples. The indigenous peoples of
Formosa Island were still designated as , and treated as inferiors, rather than as equal subjects. Tribes were "tamed" through "assimilation", the process of disarming traditional hunting tribes and forcing them to relocate to the plains and lead an agrarian existence. Further resistance was then dealt with by military campaigns, isolation and containment. In order to access natural resources in mountainous and forested indigenous-controlled areas,
Governor-General Sakuma Samata adopted a more aggressive terrain policy known as the
Five years plan to governing aborigines, attempting to pacify or eradicate aboriginal groups in areas scheduled for logging within five years' time; by 1915, this policy had been largely successful, although resistance still existed in the more remote areas.
Proximal causes The Seediq people in the vicinity of Musha village had been considered by the Japanese authorities to be one of the most successful examples of this "taming" approach, with
Chief Mona Rudao being one of 43 indigenous leaders selected for a tour of Japan a few years earlier. However, resentment still lingered, due largely to police misconduct, the ongoing practice of
forced labor, and the lack of respect for Indigenous beliefs and customs. In the days immediately prior to the incident, Chief Mona Rudao held a traditional wedding banquet for his son, Daho Mona, during which animals were slaughtered and wine was prepared and drunk. A Japanese police officer named Katsuhiko Yoshimura was on patrol in the area, and was offered a cup of wine by Daho Mona as a symbolic gesture. The officer refused, saying that Daho Mona's hands were soiled with blood from the slaughtered animals. Daho Mona attempted to take hold of the officer, insisting he participate, and the officer struck him with his stick. Fighting ensued, and the officer was injured. Mona Rudao attempted to apologize by presenting a flagon of wine at the officer's house, but was turned away. The simmering resentment among the Seediq in Musha was finally pushed to the limit. ==Incident==