Human-cost band
limited shooting in Seoul on 12.12; Gwangju May 1980 dead in the hundreds (official and higher civic estimates) -- a sequel ledger
Darker cells mean a higher score for this topic on that metric.
Scale18
Intensity42
Duration28
Tech shift12
Political impact52
Cultural memory44
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Last reviewed Sources & creditsMedia creditsMethodology
Quick answers
Are the scores a ranking of nations or armies?
No. Scores are browsing aids inside an era-bounded atlas — not live league tables of countries.
How many died on 12.12?
Shooting in Seoul that night was limited; it was not a battle like 1950. The large death ledger is Gwangju in May 1980 -- hundreds in official counts, higher in civic estimates.
Who was Hanahoe?
A secret fraternity of officers, many from the 11th class of the Korea Military Academy, including Chun and Roh Tae-woo. It operated inside the formal army.
What was 10.26?
The 26 October 1979 assassination of President Park by Kim Jae-gyu, his intelligence chief -- the vacuum 12.12 filled.
How does Gwangju connect?
17 May 1980 expanded the new military's control; Gwangju resisted and was crushed. 12.12 is the December preface to May.
Were Chun and Roh tried?
Yes, in the mid-1990s, for mutiny and for Gwangju. Sentences were later remitted -- a legal and political afterlife.
Limited 12.12 shooting; Gwangju dead in the hundreds (official) to higher civic estimates; wounded and imprisoned far more. Families of 5.18 are the ledger's centre.
A generation's delayed democracy is a political cost.
Bands
Dated span (12 December 1979 (night of the seizure; 17 May 1980 and Gwangju follow))
12 December 1979 coup is taught as 12 December 1979 (night of the seizure; 17 May 1980 and Gwangju follow). 1979-10-26 and 2010s-20s are the usual poles.
Theatre (Seoul: Army HQ, Hanahoe networks, after.)
Seoul: Army HQ, Hanahoe networks, after Park Chung-hee's assassination is the geography of the ledger -- cities, seas, plants, or ministries as the file requires.
The night
1979-12-12: Jeong seized; Hanahoe units move in Seoul.
June Struggle
1987-06: Direct election forced.
Regions
Seoul: Army HQ
Core theatre of 12 December 1979 coup (12 December 1979 (night of the seizure; 17 May 1980 and Gwangju follow)). A weak acting presidency; Chun at DSC investigates.
Vacuum
26 Oct-11 Dec 1979: Assassination; investigation politics.
Gwangju
May 1980: The civic sequel.
Trials and film
1995-: Legal and cultural afterlife.
US / UK / AU / CA classrooms
US/UK/AU/CA surveys that mention Gwangju often skip 12 December 1979, as if May 1980 had no preface.
Korean comparative reader
12.12, 17 May 1980, and Gwangju 5.18 are a civic wound: Hanahoe, the May 18 cemetery, and later cinema (12.12: The Day).
Key numbers
Span12 December 1979 (night of the seizure;.
Cost bandlimited shooting in Seoul on 12.12; Gwa.
TheatreSeoul: Army HQ, Hanahoe networks, after.
Hero articleCoup d'etat of December Twelfth
Makers
Chun Doo-hwan
Chun Doo-hwan (DSC / Hanahoe) is a named maker of the 12 December 1979 coup story. The centre of 12.12 and of the Fifth Republic. Convicted in the 1990s; a contested death-and-memory figure after 2021.
Roh Tae-woo
Roh Tae-woo (Hanahoe / 9th Division) is a named maker of the 12 December 1979 coup story. Moved a key division on 12.12; later president (1988-93) and convicted alongside Chun.
Jeong Seung-hwa
Jeong Seung-hwa (Army Chief of Staff) is a named maker of the 12 December 1979 coup story. The legal army head arrested on 12.12 -- the coup's immediate object.
Choi Kyu-hah
Choi Kyu-hah (Acting / president) is a named maker of the 12 December 1979 coup story. The civilian transitional face who could not command the guns after 10.26.
Kim Jae-gyu
Kim Jae-gyu (KCIA) is a named maker of the 12 December 1979 coup story. Assassin of Park on 10.26 -- the vacuum-maker, executed in 1980.
Park Chung-hee
Park Chung-hee (President (to 10.26)) is a named maker of the 12 December 1979 coup story. The long authoritarian who died at dinner; 12.12 is a fight over his army's heir.
Trials and films are repairs, not refunds.
Alliance trust took a bruise that historians still measure.