In April 1874, Banchi Office (Taiwan Expedition Office) was established and Shigenobu OKUMA was appointed as director general and Lieutenant General Tsugumichi SAIGO as commander of the Taiwan expeditionary force, giving them full authority.
1874年4月に蕃地事務局を設置し、長官に大隈重信、陸軍中将の西郷従道を事務局長に任命して全権が与えられた。