A South Korean court sentenced former President Yoon Suk Yeol to five years in prison on Friday for charges linked to his declaration of martial law in December 2024. The ruling came in Seoul as part of the first verdict among eight criminal trials facing the ousted leader, who was removed from office after the brief but chaotic move that lasted just six hours.
Background
Yoon Suk Yeol took office in 2022 as South Korea's president, leading the conservative People Power Party. His time in power faced growing tensions with the opposition Democratic Party, which held a strong majority in the National Assembly after elections in April 2024. The opposition controlled nearly two-thirds of the seats, leading to frequent clashes over budgets, investigations, and appointments.
By late 2024, disputes sharpened. The opposition pushed to cut the government's budget and started impeachment efforts against key figures like the chief prosecutor and the head of the state audit agency. Yoon vetoed a special law for investigating his wife, Kim Keon-hee, over claims of bribery and stock manipulation. These fights left the government in a deadlock, with Yoon's approval ratings dropping to around 10 percent.
On December 3, 2024, at 10:27 p.m. local time, Yoon went on national television with no prior notice. He declared emergency martial law, saying it was needed to protect the country from 'North Korean communist forces' and 'anti-state forces' within South Korea. He called the opposition a 'den of criminals' trying to overthrow democracy by blocking his plans and impeaching his appointees.
The declaration shocked the nation. It was the first martial law since 1980, when a military coup followed the assassination of President Park Chung-hee. Yoon's order banned all political activities, including National Assembly sessions, protests, and party operations. It put media under military control, prohibited strikes, and allowed arrests without warrants for those seen as threats. Medical staff on strike had to return to work within 48 hours or face punishment.
Troops moved quickly. Around 500 soldiers from the Army Special Warfare Command arrived at the National Assembly to block lawmakers. Yoon reportedly wanted more, telling his defense minister to send 1,000. But opposition leaders and even some from Yoon's own party gathered despite the troops. At 1:02 a.m. on December 4, 190 lawmakers voted unanimously to end the martial law. Yoon lifted it at 4:30 a.m., disbanding the command after just six hours.
Protests erupted across Seoul. Crowds called for Yoon's arrest and impeachment. The opposition filed motions right away, and several officials resigned, including Defense Minister Kim Yong-hyun, who had pushed for the decree and was later arrested. Yoon apologized on December 7 but later said he would 'fight to the end,' calling it an act to protect the state.
Investigations followed fast. Prosecutors charged Yoon and others with insurrection, a rare crime for a president that carries no immunity and penalties up to life in prison or death, though executions have not happened in decades. The political crisis led to Yoon's impeachment and removal from office. A prime minister was also impeached, and top military officers faced charges.
Key Details
The court case centered on Yoon's role in the martial law decree. Prosecutors said he led an insurrection by trying to suspend democracy, ban parliament, and control media. The decree, issued by Army General Park An-su at Yoon's order, took effect at 11:00 p.m. on December 3. It aimed to 'protect liberal democracy' from internal threats but went further than past military rules by fully halting the National Assembly.
The Trials and Charges
This was the first of eight trials against Yoon. He faces charges of insurrection, abuse of power, and more. Insurrection stands out because presidents lose immunity for it. If convicted on all, he could face decades behind bars. Yoon's lawyers called the charges a 'worst choice' by prosecutors, saying the declaration was a 'desperate plea' over an opposition-run crisis.
The five-year sentence came after a full hearing. Yoon did not testify in person but sent statements. The judge found enough evidence on the martial law charges to convict. Sentencing details noted the short duration but stressed the threat to democratic institutions. Yoon plans appeals, which could drag on for months or years.
"The president's declaration of emergency martial law was a desperate plea to the public over a national crisis caused by the opposition getting out of control." – Yoon's legal team
Other figures involved got charges too. Kim Yong-hyun, the former defense minister, was detained and attempted suicide before a warrant hearing. General Park An-su and other officers are under probe for following orders.
What This Means
The verdict shakes South Korea's politics. Yoon's conviction marks the first time a former president has been jailed over such actions. It sets a line on using military power against elected bodies. Opposition leaders see it as justice for defending democracy, while Yoon's supporters call it political revenge.
South Korea now looks ahead without Yoon. Acting leaders and a new president face tasks to rebuild trust. The economy, Asia's fourth-largest, felt ripples from the unrest, with markets watching closely as a key U.S. ally. More trials could deepen divides or heal them if appeals resolve quickly.
Public reaction splits along party lines. Protests from 2024 have quieted, but many watch for stability. The ruling reminds leaders of 1980s authoritarian past, pushing for stronger checks on power. International partners note South Korea's quick return to normal as a sign of resilient institutions.
Yoon's case tests the courts' independence. Appeals go to higher benches, possibly the Supreme Court. A final outcome could take until 2027. Meanwhile, eight more trials cover related issues like budget fights and investigations into his family. Each adds layers to the story of a presidency that ended in turmoil.
For everyday South Koreans, the focus shifts to recovery. Streets in Seoul bustle again, but memories of troops at parliament linger. The sentence closes one chapter but opens questions on preventing repeats.
