What is Kioisaka Incident?
{{no sources|date=December 2023}} '''Kioisaka Incident''' (紀尾井坂の変, ''Kioizakanohen''), took place on May 14, 1878 when [[Ōkubo Toshimichi]], Lord of Home Affairs of Japan and one of the [[Three Great Nobles of the Restoration]] (alongside [[Saigō Takamori]] and [[Kido Takayoshi]]), was assassinated by six ex-samurai assassins who are armed with [[Katana|katanas]]. To be exact, the assassination site was not located at [[Kioisaka]], but near [[Sakashita, Gifu|Sakashita]] (in front of present-day [[Shimizudani Park]]). This events are known as the '''Kioicho Incident''' (紀尾井町事件, ''Kioichō jiken''), '''Kioizaka Incident''' (紀尾井坂事件, ''Kioi-zaka jiken''), and '''Assassination of Okubo Toshimichi''' (大久保利通暗殺事件, ''Okubo toshimichi ansatsu jiken''). == Background == The perpetrators involved in the incidents were [[Shimada Ichirō]] (aged 30), [[Chō Tsurahide]] (aged 22), [[Sugimoto Otogiku]] (aged 29), [[Wakita Kōichi]] (aged 28), and [[Sugimura Bun'ichi]] (aged 17), and [[Asai Toshiatsu]] (aged 24), a samurai from [[Shimane Prefecture]] while five others from the former [[Kaga Domain]]. (Asai quit the samurai clan and became a commoner after the trial.). Among them, Shimada is the leader of the assassination group. Shimada participated in the [[First Choshu Expedition]] and the [[Boshin War]] as an [[ashigaru]] of the Kaga Domain, and continued his military career even after the formation of the [[Meiji Restoration]], but he sympathized with the idea of conquering [[Joseon|Korea]] (also known as [[Seikanron]] debate), and during the [[Incident of 1873]]. Enraged by [[Saigō Takamori|Takamori Saigo]]'s resignation, Shimada devoted himself to national affairs. [[Sugimura Hiromasa]] (Sugimura Bun'ichi's older brother) and other samurais also expressed their desire to serve in the newly formed [[Imperial Japanese Army]] in response to the idea of conquering Korea. Furthermore, regarding the [[Japanese invasion of Taiwan (1874)|dispatch of troops to Taiwan as part of the expedition in 1874]], Sugimura, Cho, and many radica