An Jung-geun
Following the signing of the treaty, many intellectuals and scholars set up various organizations and associations, embarking on movements for independence. In 1907, Gojong was forced to abdicate after Japan learned that he sent secret envoys to the Second Hague Conventions to protest against the protectorate treaty, leading to the accession of Gojong's son, Emperor Sunjong. In 1909, independence activist An Jung-geun assassinated Itō Hirobumi, former Resident-General of Korea, for Ito's intrusions on the Korean politics. This prompted the Japanese to ban all political organizations and proceed with plans for annexation.