Faction captured the chain of command
The 12.12 fact.
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.
The Fifth Republic; then 1987's direct elections; then a democratic ROK that still argues 5.18 in court and in the press.
Civil-military norms after Hanahoe's exposure are a living institutional legacy -- described, not as a current personnel list.
Lessons
Gwangju as sequel
May 1980 is why December matters civically.
Later convictions
A rare coup-in-the-dock afterlife.
Keep the cost as a range
limited shooting in Seoul on 12.12; Gwangju May 1980 dead in the hundreds (official and higher civic estimates) -- a sequel ledger 12 December 1979 coup is not improved by a fake precise integer.
Teach the Korean civic file, not only the English caption
12 December 1979 coup is a Korean-atlas priority: Seoul: Army HQ, Hanahoe networks, after Park Chung-hee's assassination has a thicker classroom than US/UK/AU/CA surveys usually admit.
Unresolved
Census still a band
"limited shooting in Seoul on 12.12; Gwangju May 1980 dead in the hundreds (official and higher civic estimates) -- a sequel ledger" remains a band. New archives refine 12 December 1979 coup; they do not un-happen 12 December 1979 (night of the seizure; 17 May 1980 and Gwangju follow).
Archives uneven
Files on 12 December 1979 coup remain unevenly open across Seoul: Army HQ, Hanahoe networks, after Park Chung-hee's assassination. Park Chung-hee's paper trail is not the same as Chun Doo-hwan's.
Gwangju 5.18
The May uprising and massacre -- the sequel ledger.
Teaching hours
English classroom hours on 12 December 1979 coup still disagree with hours in Seoul: Army HQ, Hanahoe networks, after Park Chung-hee's assassination. Is this a how-to? is often the gap.
Shifts
Vacuum
26 Oct-11 Dec 1979: Assassination; investigation politics.
Gwangju
May 1980: The civic sequel.
Trials and film
1995-: Legal and cultural afterlife.
Afterlife of the name
12 December 1979 coup left institutions and stories that outlasted 12 December 1979 (night of the seizure; 17 May 1980 and Gwangju follow). Chun Doo-hwan became a caption; Seoul: Army HQ, Hanahoe networks, after Park Chung-hee's assassination kept the rubble or the letterhead.
Outlook
Scholarship
New archives will refine 12 December 1979 coup (Expansion, Trials) without un-happening 12 December 1979 (night of the seizure; 17 May 1980 and Gwangju follow).
Memory handover
As witnesses die, museums and film carry 12 December 1979 coup. Jeong Seung-hwa and Choi Kyu-hah will keep being recast.
This atlas
12 December 1979 coup stays a historical file -- a closed seizure and its civic afterlife, not a live order of battle or a method.
Risk
civic memory, closed seizure
12.12 is history. Residual risk is faction nostalgia, Gwangju denial, and any use of this page as a method for moving troops in a capital -- it is not.
This atlas pairs 12.12 with Carnation and Chile so a Korean reader can see officers' politics as a comparative file -- never as a kit.
The ROK military page is the force-structure cousin; keep them cross-linked.