A South Korean court sentenced ex-president Yoon Suk Yeol to life in prison on Thursday after finding him guilty of leading an insurrection with his martial law declaration in 2024.
Yoon abruptly declared martial law in a televised address in December 2024, saying drastic measures were needed to root out “anti-state forces” in South Korea’s National Assembly. The 65-year-old hardline conservative was later impeached, arrested and charged with a litany of crimes ranging from insurrection to obstruction of justice. Presiding judge Ji Gwi-yeon said Yoon sent troops to the assembly building in an effort to silence political opponents who had frustrated his attempts to govern.
“The court finds that the intention was to paralyse the assembly for a considerable period,” Ji told the Seoul Central District Court.
“The declaration of martial law resulted in enormous social costs, and it is difficult to find any indication that the defendant has expressed remorse for that,” the judge said.
“We sentence Yoon to life imprisonment.”
Former defence minister Kim Yong-hyun was sentenced to 30 years in prison for his role in the crisis.
Prosecutors had sought the harshest penalty for Yoon’s insurrection charges, urging the court during hearings in January to sentence him to death.
South Korea has an unofficial moratorium on capital punishment — the last prisoners were executed in 1997 — with a death sentence effectively banishing Yoon to life behind bars. Thousands of supporters gathered outside the court ahead of the verdict, toting placards that read “Yoon Great Again” or “Drop the charge against President Yoon”. Yoon has been held in solitary confinement while fighting multiple criminal trials.
He has consistently denied wrongdoing, arguing he acted to “safeguard freedom” and restore constitutional order against what he called an opposition-led “legislative dictatorship”.
Prosecutors accused him of leading an “insurrection” driven by a “lust for power aimed at dictatorship and long-term rule”. Martial law Under South Korean law, only two sentences are fit for insurrection: life imprisonment or death.
Yoon has already been sentenced to five years in prison on lesser charges, while a host of senior officials also face hefty prison terms. Yoon broke into late-night TV on December 3, 2024, to deliver a shock address to the nation.
Pointing to vague threats of North Korean influence and dangerous “anti-state forces”, he declared the suspension of civilian government and the start of military rule.
Martial law was lifted six hours later after lawmakers raced to the assembly building to hold an emergency vote.
Staffers barricaded the doors with office furniture to keep armed troops at bay.
The declaration triggered flash protests, sent the stock market into panic and caught key military allies such as the United States off guard. Yoon’s wife Kim Keon Hee was sentenced to 20 months’ jail earlier in January on unrelated charges stemming from bribes she took while first lady.