전두환
Chun Doo hwan was the head of the Military Security Command during the assassination of Park Chung-hee. Chun Doo-hwan, Major General at the time, was appointed the role of investigating the assassination of Park Chung-hee. With the responsibility of inspecting the case of the assassination, Chun Doo-hwan was able to find favorable opportunities to cave the way of grasping authority. Chun Doo-hwan was able to gain control of the Republic of Korea army (ROK Army) on December 12, 1979 after he arrested Jung Seung-hwa, who was the chief of staff of the Korean army and also the commander of martial law, in addition to the other forces that would threaten his ideals. On December 14, two days after grasping the ROK Army, Chun Doo-hwan began to seat allies from the Korean Military Academy in powerful seats of the military in order to gain total control over the military forces of South Korea. For example, Roh Tae-woo, a man who would later become one the future presidents of South Korea, was given the role of commanding general of the Capital Security Command.