Yoon Seok-youl's Five-Year Sentence: How an Attempted Martial Law Tore Apart South Korean Democracy
16/01/2026
In the year and month, a verdict from the Seoul Central District Court pushed South Korean politics into yet another historic moment. Former President Yoon Suk-yeol was sentenced to five years in prison for the short-lived yet shocking martial law decree issued in the year and month. This was merely the first ruling in his eight criminal trials, with more severe charges of rebellion still awaiting a final verdict in late February—prosecutors have even requested the death penalty.
Inside and outside the courtroom, the atmosphere was starkly different. Judge Baek Dae-hyun spoke sternly during the televised sentencing, pointing out that the defendant showed no signs of remorse and merely repeated incomprehensible excuses. Outside the court, around a hundred supporters gathered in front of a large screen watching the live broadcast. Some held up red banners that read, "Yoon Suk-yeol, once more! Make Korea great again." When the guilty verdict was announced, several angry shouts erupted from the crowd, while many others wore solemn expressions.
This verdict is not merely the legal fate of a former president; it is a severe test of South Korea's democratic resilience, reflecting the nation's deep political divisions and historical shadows.
Martial Law Night: An Unprecedented Constitutional Crisis in Forty Years
On the night of December 3, 2024, South Korean President Yoon Suk Yeol suddenly appeared on national television screens, announcing the implementation of martial law. In his speech, he claimed to eliminate anti-state forces, protect the constitutional democratic order, and pointed the finger at the opposition-controlled National Assembly, accusing it of obstructing budget deliberations. This marks the first time South Korea has declared martial law since the period of military dictatorship in the 1980s.
Yoon Suk-yeol dispatched troops and police to surround the National Assembly building in an attempt to block lawmakers from entering. However, many units did not strictly enforce the lockdown order, allowing a sufficient number of lawmakers to enter the chamber and quickly vote to overturn the president's martial law decree. The entire process did not involve major violence, but this constitutional farce, which lasted only a few hours, was enough to trigger a political tsunami in South Korean society.
For many South Koreans, martial law evokes painful memories of the military dictatorship in the 1970s and 1980s. During that era, military regime leaders frequently imposed martial law and emergency measures, deploying soldiers and tanks to the streets to suppress demonstrations. In the Gwangju Incident, approximately 200 people lost their lives in the crackdown on pro-democracy protests. Yoon Suk-yeol's declaration of martial law, regardless of its intent, has psychologically struck the nation's most sensitive nerve.
From a legal procedural perspective, Yoon Suk-yeol's martial law decree contains significant flaws. The court ruling pointed out that he failed to convene a full State Council meeting as required by law, thereby depriving some cabinet members who were not present of their legitimate right to review the martial law decree. More seriously, the investigation revealed that Yoon Suk-yeol's team fabricated a document claiming that the martial law decree had been approved by the Prime Minister and the Minister of National Defense, and subsequently destroyed this forged document.
Trial Labyrinth: From Five-Year Imprisonment to Death Penalty Request
The Seoul Central District Court's ruling in January addressed relatively minor charges: obstruction of arrest, forgery of official documents, and violation of cabinet meeting procedures. The prosecution had initially sought a ten-year sentence, but the court ultimately sentenced him to five years. Yoon Suk-yeol's defense team immediately announced their intention to appeal, claiming the ruling was politicized and oversimplified the boundary between the exercise of presidential constitutional powers and criminal liability.
However, this is just the tip of the iceberg.However, this is just the tip of the iceberg.
The most serious charge against Yoon Suk-yeol is rebellion—the prosecution contends that his imposition of martial law constituted, in essence, an act of insurrection. In the closing arguments of January 2026, after a 17-hour marathon hearing, the independent prosecution team formally requested the court sentence Yoon Suk-yeol to death. Under South Korean law, rebellion is one of the few crimes for which the death penalty remains applicable.
Seoul Kyung Hee University Professor Xu Zhengkun analyzed and pointed out: The prosecution's request for the death penalty is likely because former President Yoon Seok-youl consistently maintained that his actions were justified, showing no signs of remorse or admitting any wrongdoing. He added that the general expectation is that the outcome will either be the death penalty or life imprisonment.
The legal reality is more complex than it appears on the surface. Since 1997, South Korea has effectively suspended the implementation of the death penalty, and courts rarely impose death sentences. Park Sung-bae, a lawyer specializing in criminal law, believes that the court is highly unlikely to sentence Yoon Seok-youl to death; a more probable outcome would be life imprisonment or a fixed-term imprisonment of over 15 years. The court will take into account that Yoon Seok-youl's martial law decree did not result in any casualties and was of very short duration, despite his own lack of sincere remorse.
The judicial labyrinth facing Yoon Suk-yeol extends far beyond this. In addition to the rebellion charges, he is also on trial for multiple other offenses: including allegedly ordering drones to fly over North Korea to deliberately escalate hostilities and create a pretext for declaring martial law; being accused of manipulating the investigation into the drowning of a naval soldier; and facing charges of accepting free opinion polls from election brokers in exchange for political favors.
Historical Echoes: The Cycle of Presidential Imprisonment and Pardon
Yoon Suk Yeol is not the first former president of South Korea to face a criminal trial. In fact, the modern political history of South Korea is almost a chronicle of presidential tragedies: Chun Doo-hwan, Roh Tae-woo, Park Geun-hye, Lee Myung-bak... A series of names form the unique curse of the Blue House.
Chun Doo-hwan was sentenced to death for his involvement in the 1979 coup and the 1980 violent suppression of pro-democracy protests (including the Gwangju incident), which was later commuted to life imprisonment. Roh Tae-woo was sentenced to 17 years in prison for similar charges. Both were released after serving approximately two years upon receiving presidential pardons, with the government at the time stating it was a necessary step for national reconciliation.
The most recent precedent is Park Geun-hye, who was sentenced to 20 years in prison in 2021 for abuse of power and bribery, but was pardoned and released shortly thereafter. This pattern of sentencing followed by pardon has almost become a standard procedure in South Korea for handling legal issues involving former presidents, often carried out in the name of promoting national unity.
Some observers believe that Yoon Seok-youl maintained a confrontational stance during the trial precisely to sustain his support base—he may believe that, despite being unable to avoid a long prison sentence, there is still a chance for a pardon in the future. This calculation is not without reason. A survey last month showed that nearly % of South Koreans do not consider Yoon Seok-youl's martial law declaration to constitute rebellion. Although his attempt to impose martial law led to tens of thousands taking to the streets in protest, his supporters also held smaller counter-demonstrations.
The political spectrum's reaction is distinctly clear. Democratic Party lawmaker Moon Jin-ju stated in a declaration: Requesting the death penalty for Yoon Suk-yeol is not a matter of choice but a necessary action, and it should not be considered excessive. Meanwhile, conservative People Power Party lawmakers distanced themselves from the former president, refusing to issue an official statement on the case. Party leader Jang Dong-hyuk told reporters that the special prosecutor's sentencing request is not a matter he should comment on, and he looks forward to a fair trial by the court.
Political Aftershocks: A Divided Society and an Uncertain Future
Yoon Suk-yeol's attempt to impose martial law and the subsequent trial have laid bare the deep-seated divisions within South Korean society. In [year and month], after Yoon Suk-yeol was impeached and removed from office, opposition leader Lee Jae-myung won the early presidential election. Upon taking office, Lee Jae-myung appointed three independent prosecutors to investigate various allegations involving Yoon Suk-yeol, his wife, and his aides.
On the surface, it appears that liberal forces achieved political change through elections. However, Yoon Suk-yeol's trial has redirected the spotlight back onto the fractures within South Korean society. The former president still commands steadfast supporters who view him as a martyr. The red banners outside the courthouse and the slogan "Make Korea Great Again" echo the reverberations of populism seen globally.
From a broader perspective, the case of Yoon Suk Yeol raises a fundamental question: In a highly polarized political environment, where are the boundaries of constitutional order? How much emergency power does the president truly possess when facing legislative gridlock? In the ruling, Judge Baek Dae-hyun pointed out: As the president, the defendant should have been more responsible than anyone else for defending the Constitution and the rule of law, yet instead, he displayed an attitude of contempt toward the Constitution.
Although South Korea's democratic system withstood the impact of this attempted martial law—the National Assembly swiftly overturned the martial law order, the Constitutional Court ultimately impeached the president, and the judicial system is holding him legally accountable—the resilience of the system came at the cost of social division.
Financial markets and diplomatic relations were also shaken during the incident. As a country heavily reliant on a stable image to attract investment and maintain a delicate balance in the power struggles among major nations, political turmoil within South Korea inevitably had spillover effects. In his martial law address, Yoon Suk-yeol mentioned the communist forces of North Korea. Although he did not specify the threat from the nuclear-armed North, this narrative, which ties domestic political conflicts to national security, undoubtedly heightened regional tensions.
February Verdict: Another Crossroads for Korean Democracy
On [Date], the Seoul Central District Court will issue a final verdict on the rebellion charges against Yoon Suk-yeol. Whether the outcome is the death penalty, life imprisonment, or a long-term prison sentence, this ruling will be recorded in the annals of South Korea's constitutional history.
The court faces not only legal technical issues but also the challenge of political balance. An overly harsh verdict may be seen by supporters as political retaliation, further intensifying social division; overly lenient handling could undermine the authority of the rule of law, sending a dangerous signal that the president is above the law.
Yoon Suk-yeol's fate is, to some extent, a metaphor for the fate of South Korean democracy. The country spent decades transitioning from military dictatorship to democratic consolidation, establishing a relatively robust system of checks and balances. The 2022 martial law crisis demonstrated that these mechanisms can function effectively at critical moments: the military did not fully obey unconstitutional orders, the National Assembly acted swiftly, and the judicial system ultimately held those responsible accountable.
The healthy functioning of the system ultimately depends on political culture and social consensus. When nearly one-third of the population questions the nature of the rebellion, and when supporters loudly call for the former president to lead the country again, South Korean society has clearly not yet reached full agreement on the red lines of democracy and the lessons of history.
The first sentence of Yoon Suk-yeol's five-year term has been delivered, but a larger trial surrounding power, democracy, and reconciliation continues to unfold deep within South Korean society. The most difficult lesson this nation is learning is that while systems can be designed and procedures refined, the true guardians of democracy are always vigilant citizens and their shared faith in the rule of law. On the February verdict day, South Korea will once again test the depth of this faith.