South Korea’s special prosecutor is set to request a sentence for former president Yoon Suk Yeol as his insurrection trial enters its final phase. The lower court convened on Friday for closing arguments, bringing the country closer to a verdict in one of the most consequential political trials in its modern history. Prosecutors are expected to seek either the death penalty or life imprisonment punishments permitted under South Korean law for insurrection.
Charges That Strike at the Core of Democracy
Yoon is accused of masterminding an insurrection through his brief but dramatic imposition of martial law in December 2024. Prosecutors allege that he and then-defence minister Kim Yong-hyun began planning the move as early as October 2023, with the goal of suspending parliament and concentrating legislative power in the executive. If proven, the case would represent one of the most serious abuses of presidential authority since South Korea’s transition to democracy.
Targeting Political Opponents
According to prosecutors, Yoon sought to justify the extraordinary measures by portraying political opponents including then-opposition leader Lee Jae Myung as “anti-state forces.” They allege plans were in place to detain key figures, a claim that has intensified concerns that the martial law declaration was not merely symbolic but intended to dismantle democratic opposition.
North Korea as a Manufactured Pretext
Prosecutors have also accused Yoon and Kim of attempting to engineer a security crisis by escalating tensions with North Korea through a covert drone operation. The alleged effort to provoke external threats in order to legitimise martial law has added a dangerous national security dimension to the case, further deepening the gravity of the charges.
A Shock to a Stable Democracy
Although the martial law order lasted only around six hours, its impact was profound. The episode rattled Asia’s fourth-largest economy, unnerved investors, and shocked allies particularly the United States, for whom South Korea is a key security partner. Long regarded as one of Asia’s most resilient democracies, the country was suddenly confronted with the fragility of its political institutions.
Yoon’s Defence: A Constitutional Right
Yoon, now 65, has denied all charges. He maintains that declaring martial law fell within his constitutional powers as president and argues the move was intended to warn against what he described as obstruction by opposition parties. His legal team insists the prosecution is criminalising a political decision rather than prosecuting a genuine attempt at insurrection.
A Somber Courtroom Scene
Appearing noticeably thinner than when the trial began in February, Yoon attended the final session in a dark suit and white shirt, seated alongside seven other defendants including Kim. The proceedings opened earlier than usual to accommodate defence arguments, followed by prosecutors’ closing statements and sentencing requests for each accused.
Political Fallout and a Changed Landscape
The court is expected to deliver its verdict in February, concluding more than a year of political turmoil. Yoon was impeached and removed from office by the Constitutional Court, and a snap presidential election in June brought liberal-leaning Lee Jae Myung to power. The dramatic images of lawmakers scaling fences to vote down the martial law order have since become a defining symbol of the crisis.
More Legal Trouble Ahead
Beyond the insurrection charge, Yoon faces additional criminal cases, including accusations of obstructing the execution of an arrest warrant and abuse of power. Even if spared the harshest sentence, his legal battles are far from over.
Analysis: A Trial That Redefines Presidential Power
This case is less about one former president and more about the boundaries of executive authority in a mature democracy. South Korea’s willingness to pursue the most severe penalties against a former head of state underscores how seriously it views threats to constitutional order even when they come from the very top.
The fact that the death penalty remains legally possible, despite a decades-long execution moratorium, reflects the symbolic weight of the charges rather than a likely outcome. Still, the trial sends a powerful message: democratic backsliding, even if brief and unsuccessful, carries consequences.
For South Korea, the verdict will help determine whether the crisis of 2024 becomes a cautionary footnote or a defining turning point in its democratic evolution.
With information from Reuters.

