In a landmark legal development stemming from one of South Korea’s most dramatic political crises in modern history, independent prosecutors have formally called for a 30-year prison term for former South Korean President Yoon Suk-yeol on charges of general treason connected to a 2024 unauthorized drone incursion into the Democratic People’s Republic of Korea (DPRK).
The investigation into Yoon’s actions is being led by Cho Eun-suk, the special counsel appointed to probe allegations of insurrection and other criminal offences connected to Yoon’s 2024 emergency martial law declaration. Prosecutors argue that Yoon ordered the secret drone operation into Pyongyang around October 2024 as a deliberate military provocation against the DPRK. The incursion was designed to manufacture a security crisis, which Yoon planned to use as justification for his contested declaration of martial law two months later, according to the indictment.
Prosecutors outlined the severe consequences of Yoon’s actions during Friday’s court proceedings: the unauthorized operation sharply escalated military tensions on the Korean Peninsula, a region already marked by decades of inter-Korean hostility. After the drone crashed in DPRK territory, sensitive classified information related to South Korea’s military operations and strategic assets was compromised, directly damaging the country’s national security interests, the prosecution team argued.
Along with the request for Yoon, the special counsel’s office is seeking a 25-year prison sentence for former South Korean Defense Minister Kim Yong-hyun, who is also a co-defendant in the case. Yoon, Kim, and a former South Korean counterintelligence commander were all formally indicted on general treason charges in November 2025.
The case traces its origins to the night of December 3, 2024, when Yoon, who was still serving as sitting president at the time, made a sudden declaration of emergency martial law, accusing the opposition of engaging in anti-state activities. The move triggered immediate political chaos, and South Korea’s National Assembly voted within hours to revoke the declaration, rendering it legally void.
Yoon made history in January 2025 when he was arrested and indicted while in detention as the suspected ringleader of the insurrection plot, becoming the first sitting South Korean president to ever be taken into custody and formally charged with criminal offences. As the legal process moves forward, the outcome of the trial is expected to reshape South Korea’s political landscape and set a lasting precedent for executive accountability in the country.