A Seoul court sentenced former South Korean president Yoon Suk Yeol to life imprisonment with labour. A direct consequence for leading an insurrection through his failed declaration of martial law on 3 December 2024. The ruling marks the first time an elected leader in South Korea’s democratic era has received the maximum custodial sentence for such a crime. The Seoul central district court determined that Yoon attempted to use military force to block the National Assembly, arrest political leaders, and prevent lawmakers from voting to overturn his decree.
Judge Jee Kui-youn emphasized that Yoon showed no remorse, refused to attend hearings without justification, and inflicted profound political and social damage. The court concluded that the martial law attempt undermined the neutrality of the military and police, weakened South Korea’s international credibility, and deepened political polarization. Although prosecutors sought the death penalty, the court imposed life imprisonment, noting that Yoon’s plans lacked meticulous coordination and ultimately failed. Under South Korean law, insurrection carries penalties of death or life imprisonment with or without labour.
Politcal Fallout and Related Sentences
The verdict follows months of legal and political upheaval. Within hours of the martial law declaration, lawmakers forced their way into parliament to revoke the order. Parliament impeached Yoon within days, and the constitutional court formally removed him from office months later. The failed power grab has since produced multiple prosecutions. Former prime minister Han Duck-soo received a 23-year sentence, and former interior minister Lee Sang-min was jailed for seven years. Several military and police officials also received lengthy prison terms, while two defendants were acquitted.
Outside the courthouse, reactions were sharply divided. Supporters of Yoon protested angrily, accusing the judiciary of political bias. Meanwhile progressive groups celebrated the ruling. Yoon’s legal team condemned the decision as a “show trial” and vowed to appeal.
The sentence places Yoon among a long line of former South Korean leaders who have faced imprisonment, including Park Geun-hye, Chun Doo-hwan, and Roh Tae-woo. Yet, all of them were eventually pardoned. Whether Yoon’s fate will follow that historical pattern remains uncertain. The ruling underscores the judiciary’s forceful response to what it described as a direct assault on constitutional order.
Reference
Rashid, R. (2026, February 19). South Korea’s former president Yoon Suk Yeol jailed for life for leading insurrection. The Guardian. https://www.theguardian.com/world/2026/feb/19/yoon-suk-yeol-sentenced-to-life-in-prison-for-leading-insurrection-in-south-korea?CMP=Share_AndroidApp_Other