1979–1980 Military Coup and the Expansion of Martial Law (Chun Doo-hwan era)
1979-12 to 1980-05What Happened
After President Park Chung-hee’s assassination, senior officers consolidated power and expanded martial law, using security forces to crush opposition. The period culminated in the Gwangju uprising and a long shadow over Korean civil-military relations.
Outcome
Authoritarian rule hardened; political dissent was violently suppressed.
Democratization later redefined martial law as a national trauma and red line.
Why It's Relevant Today
South Koreans hear “martial law” as lived history—why a six-hour decree triggered a national immune response.
