Ex-South Korean President Yoon Suk Yeol Sentenced to 30 Years for Sending Drones Over Pyongyang

Seoul, South Korea – Former South Korean president Yoon Suk Yeol has been sentenced to 30 years in prison for sending drones into North Korea, a move prosecutors argued was aimed at creating a pretext for his failed martial law declaration in 2024 that plunged Asia's fourth-largest economy into its deepest political turmoil in decades.

The Seoul Central District Court found Yoon guilty of abuse of power and aiding the enemy, ruling that he had conspired in the October 2024 drone incursion from the outset, according to South Korean news agency Yonhap. Special prosecutors said in April that Yoon's effort to "fabricate wartime conditions" with the drones had seriously undermined state security.

Yoon, who is already in custody following a separate life sentence for insurrection, can appeal Friday's lower court ruling. His lawyers said he neither ordered nor later approved the drone operation, which they argued was unrelated to martial law and instead a response to months of North Korean launches across the border of balloons stuffed with rubbish.

The October 2024 Drone Incursion

North Korea accused Seoul of flying drones over Pyongyang to drop propaganda leaflets three times in October 2024. South Korea's defence minister at the time, Kim Yong-hyun, issued a vague denial before the defence ministry said it could neither confirm nor deny the allegations. Tensions rose sharply between the two nuclear-armed rivals, but the incident did not lead to any military clashes.

Prosecutors argued that the operation heightened tensions with North Korea and led to the leak of classified information – including details about force capabilities – after the drones crashed, Yonhap reported.

A spokesperson for the Seoul Central District Court told AFP news agency that Yoon was "given 30 years in jail" for the charges. The sentence adds to a growing list of convictions against the ousted conservative leader.

The Martial Law Declaration That Shook South Korea

Friday's ruling adds to a series of judgments against Yoon, whose martial law order on December 3, 2024, plunged South Korea into its most severe political crisis since democratization in the late 1980s.

Yoon was given life in prison in February for leading an insurrection to "paralyse" South Korea's National Assembly with his martial law declaration. He has appealed against that conviction, insisting that he declared martial law "solely for the sake of the nation" and to protect South Korea from what he called "anti-state forces."

The martial law declaration – the first in South Korea since 1980 – sent heavily armed troops into the National Assembly grounds, though lawmakers managed to vote down the declaration within hours. The dramatic scenes shocked the international community and triggered massive protests across the country.

Yoon was removed from office last year after the Constitutional Court upheld his impeachment, triggering a snap election that was won by liberal opposition leader Lee Jae Myung.

Yoon's Defense: Rubbish Balloons, Not Wartime Pretext

Yoon has consistently denied wrongdoing. His lawyers have argued that he neither ordered nor later approved the drone operation, which they claim was unrelated to martial law.

According to Yoon's defense team, the drone flights were a response to months of North Korean launches across the border of balloons stuffed with rubbish – including trash, cigarette butts, and even manure. North Korea has sent thousands of such balloons toward the South since early 2024, describing them as "sincere gifts" in retaliation for propaganda leaflets sent by South Korean activists.

The defense argued that the drone operation was a legitimate intelligence-gathering mission, not an attempt to create a pretext for martial law. However, prosecutors successfully convinced the court that Yoon had conspired in the incursion from the outset and that the operation was part of a broader scheme to justify his declaration of martial law.

Drone Flights: A Continuing Flashpoint

Drone flights remain a significant flashpoint in tensions between the two Koreas, which remain technically at war since the 1950-1953 Korean War ended in an armistice rather than a peace treaty.

Current President Lee Jae Myung expressed regret earlier this year after an investigation found that government officials had sent drones into the nuclear-armed North in January. North Korean leader Kim Jong-un's powerful sister, Kim Yo-jong, called Lee's statement "wise behavior" – a rare moment of apparent approval from Pyongyang.

However, hopes for a rapprochement faded quickly after the diplomatically isolated nation returned to calling the South its "most hostile" enemy, a rhetorical shift that analysts say reflects Pyongyang's frustration with continued military exercises and what it perceives as hostile policies from Seoul and Washington.

What's Next for Yoon?

Yoon, who is already in custody, can appeal Friday's lower court ruling. His legal team has indicated they will appeal both the life sentence for insurrection and the 30-year sentence for the drone incursion.

Legal experts say an appeals process could take months or even years. South Korea's Supreme Court would have the final say on whether Yoon's convictions and sentences stand.

Even if Yoon successfully appeals, his political career is almost certainly over. He remains deeply unpopular among the South Korean public, with polls consistently showing overwhelming support for his impeachment and removal from office.

Political Fallout

The sentencing comes as President Lee Jae Myung's administration continues to distance itself from Yoon's policies. Lee has pursued a more conciliatory approach toward North Korea, though he has also maintained military readiness and coordinated closely with the United States.

The opposition conservative People Power Party, Yoon's former political home, has struggled to find its footing since his downfall. The party remains divided between loyalists who defend Yoon and reformers who argue for a complete break with the former president's legacy.

Analysts say the drone sentencing will likely further damage the conservative party's prospects ahead of future elections, as voters associate them with Yoon's failed leadership and unprecedented abuse of power.