In 1979, through the December 12th coup, Chun Doo-hwan rose to power and censored all press releases based on martial law.
The Defense Security Command and the Korean Central Intelligence Agency did the pre work for the policy based on information about the journalists and the press, justifying it as a recovery of impartiality and public values.
[1] On November 11, 1980, the new military government decided that the measure was needed to suppress expected protests after the lift of martial law.
Heo Moon-do and others drafted the plan for the betterment of press, which was implemented by the Defense Security Command on November 12 in the same year after Chun's approval.
Then, the Defense Security Command from 6 pm on the same day, the owners of broadcasting companies were summoned to forcefully sign a memorandum to show they have no objections.