South Korea’s ex-President Yoon gets another 7-year sentence

South Korean appeals court sentenced former President Yoon Suk Yeol to seven years in prison on Wednesday for obstruction of justice and procedural violations related to his controversial declaration of martial law in December 2024.

The Seoul High Court ruling increases Yoon’s earlier five-year sentence from a lower court and comes in addition to a life sentence he previously received on rebellion charges. The combined verdicts represent an extraordinary fall from grace for the conservative politician whose authoritarian actions created South Korea’s most serious democratic crisis in decades.

Judge Yoon Sung-sik ruled that the former president illegally bypassed proper Cabinet procedures before declaring martial law, falsified official documents to cover up these procedural failures, and then deployed presidential security personnel to resist law enforcement attempting to execute his arrest warrant.

“The former president essentially used security officials like a private army to obstruct legitimate law enforcement efforts,” Judge Yoon stated during the proceedings. The former president remained silent throughout the verdict announcement.

Yoo Jeong-hwa, representing Yoon’s legal team, expressed disappointment with the ruling and confirmed they would appeal to South Korea’s Supreme Court. The former president has also appealed his life sentence.

The appeals court ruling is notable for its expansion of guilt compared to the lower court’s findings. While the original verdict had partially cleared Yoon of abuse-of-power charges related to Cabinet meeting requirements, the Seoul High Court reversed this acquittal. The judges determined that Yoon violated constitutional rights by only convening select Cabinet members in a simulated formal meeting rather than notifying all members as required by law.

The martial law crisis, although brief, had profound impacts on South Korean society. The December 3, 2024, decree temporarily paralyzed government functions, disrupted high-level diplomatic engagements, and sent financial markets into turmoil. Political stability only returned after liberal opposition leader Lee Jae Myung won a special presidential election in June 2025, following Yoon’s removal from office.

The political drama began with Yoon’s impeachment by the liberal-controlled National Assembly on December 14, 2024, which immediately suspended him from power. The Constitutional Court formalized his removal in April 2025. During the interim period, Yoon resisted legal proceedings, most dramatically when he refused to comply with a detention warrant in January 2025.

“The standoff at the presidential compound represented an unprecedented constitutional crisis,” said Park Min-ho, professor of constitutional law at Seoul National University, who was not involved in the case. “It raised serious questions about the limits of presidential power and the rule of law in South Korea’s democracy.”

Investigators who arrived at the presidential residence encountered physical barricades and resistance from security personnel still loyal to Yoon. He was eventually detained later that month but temporarily released in March before being rearrested in July 2025. He has remained in custody since then as multiple criminal trials progress through the legal system.

The court ruling adds to mounting legal troubles for Yoon’s inner circle. Just one day earlier, the same court increased the prison sentence for Yoon’s wife, Kim Keon Hee, to four years for accepting luxury gifts from the controversial Unification Church, which allegedly sought political influence with the Yoon administration, and for involvement in stock manipulation.

Prosecutors are also pursuing additional serious charges against the former president. Last week, they requested a 30-year prison term in a separate trial where Yoon stands accused of deliberately escalating tensions with North Korea by ordering provocative drone flights over Pyongyang in 2024 – allegedly to create conditions justifying his martial law declaration.

The case continues to reverberate through South Korean politics as the nation works to repair democratic institutions and restore international confidence following one of its most turbulent political periods since democratization in the late 1980s.