One time
In 1963, it was a secret organization formed in 1963 under the leadership of the 11th Army Academy of Korea, including Chun Doo Woo, Roh Tae Woo, Chung Ho Yong, and Kim Bok Dong. Since then, they have been recruiting three to four members of the army officers' schools. The Ministry of National Defense announced that the 22nd - 23rd Military Academy was no longer officially structured. However, the meeting continued until the 31st year, and in the beginning of 1993, 31 members of the Vice-Chancellor took a melee on the motive president, and a member list was spread to the military apartment of Yongsan in Seoul. In 1979, he led the 12th military rebellion, the 5.17 coup, and the suppression of the Gwangju Democratization Movement in the 12th and 12th classes in 1995, and the key figures were convicted in the December 12 and 5.18 case trials in 1995.