HISTORY OF G30SPKI Afardhan Putra F (1) Faris Muhammad D H (17) The September 30 Movement of the PKI (G30SPKI), the Thirty September Movement (GESTAPU) and the One October Movement (GESTOK) are the same term for an event that occurred on September 30th to October 1st 1965, when seven high-ranking Indonesian military officers and several others were killed in a coup attempt by the PKI. The September 30 movement aimed to overthrow President Sukarno and turn the Republic of Indonesia into a communist state. This incident was led by Dipa Nusantara Aidit who was the chairman of the PKI at that time. At that time DN Aiddit invited the people to support the PKI so that Indonesia would progress. Lieutenant Colonel Untung Syamsuri, who was the Commander of Battalion 1 Cakrabiarawa, instructed that this movement be launched in Jakarta and Yogyakarta. This movement targeted the General Councils and High Officers. Beginning in the afternoon, on September 30th