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SEOUL, South Korea — Former South Korean President Yoon Suk Yeol was sentenced to life in prison on February 19, 2026, after being found guilty of leading an insurrection stemming from his brief imposition of martial law in December 2024. This ruling concludes a significant political crisis in South Korea, marking the first life sentence for a former president since the days of military dictatorship.
The 65-year-vintage conservative leader declared martial law on December 3, 2024, in an attempt to overcome a legislature controlled by his liberal opponents. Judge Jee Kui-youn of the Seoul Central District Court determined that Yoon’s actions constituted rebellion, as he mobilized military and police forces to encircle the National Assembly, arrest political adversaries, and establish unchecked power.
The declaration of martial law was the first of its kind in over 40 years and evoked memories of South Korea’s historical military governments, which often enacted emergency measures to suppress dissent. Yoon’s command issued sweeping powers, including the suspension of political activities and media control, but the decree lasted only six hours before lawmakers managed to vote against it despite the military blockade.
Impeachment and Legal Proceedings
Yoon was suspended from office on December 14, 2024, following his impeachment by the National Assembly, which was formalized by the Constitutional Court in April 2025. He had been in custody since July 2025 while facing multiple criminal charges. The conviction for rebellion carried the most severe consequences, leading to this life sentence.
During the court proceedings, Yoon’s defense team criticized the judgment, claiming it was predetermined based on the prosecution’s narrative. Yoon himself argued that his martial law decree was intended to highlight the paralysis caused by liberal lawmakers and insisted he would respect legislative decisions if lawmakers voted against it.
Reactions and Context
The ruling has polarized the nation further, with supporters of Yoon expressing their outrage outside the courtroom, while critics called for more severe penalties, including the death penalty. A special prosecutor had sought capital punishment, emphasizing the threat Yoon’s actions posed to democracy, yet many analysts had anticipated a life sentence given the lack of casualties from the martial law declaration.
South Korea has not executed anyone since 1997, indicating a de facto moratorium on capital punishment amidst ongoing debates about its abolition. Jung Chung-rae, leader of the Democratic Party, lamented that the court’s decision did not reflect a strong enough sense of justice.
Additional Sentences and Political Fallout
The court also convicted several former military and police officials connected to the implementation of Yoon’s martial law decree. Ex-Defense Minister Kim Yong Hyun received a 30-year sentence for his role in orchestrating the military response and ordering arrests of 14 prominent politicians.
Yoon’s previous convictions include a five-year sentence for resisting arrest and fabricating the martial law proclamation. Prime Minister Han Duck-soo, who attempted to legitimize the decree, received a 23-year sentence but has appealed the ruling.
This case not only highlights the tumultuous political landscape in South Korea but also raises questions about accountability for leaders and the resilience of its democratic institutions. Yoon is the first former president sentenced to life imprisonment since Chun Doo-hwan, who faced similar charges decades earlier.
Looking Ahead
The implications of this ruling extend beyond Yoon’s individual fate, as it underscores the ongoing struggle within South Korean politics regarding governance, accountability, and public trust. The current administration, led by President Lee Jae Myung, faces increased scrutiny and pressure as it navigates the aftermath of this landmark case.
As the legal processes continue, including potential appeals, the future political landscape in South Korea remains uncertain. Observers will be keenly watching how this ruling affects both public sentiment and the actions of current leaders.
We encourage readers to share their thoughts on this significant political development in South Korea.