Chun Doo-hwan Government and the 8th Amendment
The new military group took power through the Special Committee for National Security Measures and amended the constitution to a single seven-year term chosen by an electoral college.
United States Department of Defense · Public domain · Source
In May 1980 the new military group set up the Special Committee for National Security Measures, through which it ruled, forcibly merging media outlets and running the Samcheong re-education camps. When President Choi resigned in August, the National Conference for Unification elected Chun Doo-hwan president.
In October the constitution was amended to provide a single seven-year presidential term elected indirectly by an electoral college, under which Chun was elected again in 1981. Alongside coercion, the government eased the night-time curfew, relaxed school uniform and hair rules, and launched professional baseball. In the mid-1980s the "three lows" — low interest rates, oil prices and dollar — brought rapid growth.