South Korea's President Accuses Ukraine of Undermining Him Over North Korean POW Transfer

A diplomatic dispute between South Korea and Ukraine has escalated sharply after South Korean President Lee Jae Myung publicly accused Kyiv of undermining him by disclosing a secret arrangement to transfer captured North Korean soldiers to Seoul. The row, which had been simmering for days, erupted into open recrimination on Friday when Lee issued a strongly worded social media statement expressing anger at Ukrainian President Volodymyr Zelenskyy's remarks during the United Nations General Assembly.

At the centre of the controversy is Zelenskyy's UN speech, in which he revealed that Kyiv had handed over two North Korean prisoners of war to South Korea. The soldiers had been captured while fighting alongside Russian forces in the Kursk region, where Ukrainian troops have been engaged in intense combat since launching a cross-border incursion. South Korean officials say the disclosure violated an understanding that the transfer would remain confidential.

Lee accused Ukraine of acting in bad faith and warned that Zelenskyy's suggestion of an imminent military confrontation between North and South Korea amounted to recklessly invoking the risk of war on the Korean Peninsula. "This is a matter concerning the honour of the Republic of Korea's people and nation, we cannot overlook it," Lee declared, signalling that Seoul views the episode as a serious breach of trust rather than a minor diplomatic misstep.

The South Korean president also called on Kyiv to formally acknowledge that a secrecy agreement existed and to issue an apology. His remarks followed a statement from senior presidential secretary Seong Ghi-hong, who said Ukraine had repeatedly discussed the prisoners' transfer with Seoul through multiple channels and had explicitly requested confidentiality. According to Seong, the arrangement was handled with discretion precisely because of the sensitivity surrounding North Korean personnel.

Ukraine, however, has rejected the South Korean account. Kyiv maintains that no secrecy agreement was ever reached, setting up a direct contradiction between the two governments. Ukrainian Foreign Minister Andrii Sybiha attempted to lower the temperature in an interview published Thursday by RBC-Ukraine and other outlets, saying he would "not like to call it an incident" and describing it instead as a "diplomatic misunderstanding."

Sybiha emphasised the importance of the bilateral relationship, stating that "South Korea is an important country for us" and expressing hope for continued cooperation and concrete results. His conciliatory language appeared designed to prevent the dispute from spiralling further, but it has so far failed to mollify Seoul, which continues to demand a formal acknowledgement of wrongdoing.

The rift carries significant strategic implications. Both South Korea and Ukraine are aligned with the United States, and Washington has been working to build a united international front against Russia, China and North Korea. A public quarrel between two US partners risks complicating those efforts at a time when coordination among allies is already strained by competing priorities in Europe and the Indo-Pacific.

For Seoul, the transfer of the North Korean POWs is a deeply symbolic matter. The two soldiers represent a rare window into North Korea's direct involvement in Russia's war effort, a development that has alarmed South Korean policymakers. Pyongyang's decision to send troops to fight alongside Russian forces in Kursk has been widely condemned, and the captured soldiers could provide valuable intelligence about North Korean military capabilities and deployment patterns.

South Korean lawmaker Yu Yong-weon, of the main opposition People Power Party, recently displayed photographs of the two North Korean POWs during a visit to a facility in Ukraine last February. The images, taken at a prisoner camp, had the faces of the detainees blurred for security reasons. Yu's public presentation of the photographs added a domestic political dimension to the controversy, with opposition figures pressing the government on how the transfer was handled.

The timing of the dispute is particularly awkward for Seoul. President Lee, who arrived at a military base in Gyeryong on October 1 for the 78th Armed Forces Day, has sought to project strength and stability on the Korean Peninsula. The accusation that Ukraine exposed a sensitive operation without consent plays into opposition criticism that his administration failed to secure adequate assurances from Kyiv before proceeding with the transfer.

Analysts suggest the episode reflects broader tensions in the relationship between Seoul and Kyiv. South Korea has provided humanitarian and economic assistance to Ukraine but has resisted repeated Ukrainian requests for lethal weapons, citing its longstanding policy against supplying arms to active conflict zones and concerns about provoking Russia. That restraint has occasionally frustrated Ukrainian officials, who view South Korea's defence industrial capacity as a potentially decisive contribution.

The contradictory accounts of whether a confidentiality arrangement existed may prove difficult to resolve. Neither side has produced documentation publicly, leaving the dispute to hinge on competing official narratives. Diplomatic observers note that even a carefully worded statement from Kyiv acknowledging a "misunderstanding" could provide Seoul with a face-saving exit, but Ukrainian officials appear wary of conceding that they breached an agreement.

The row also highlights the complexities of handling North Korean defectors and prisoners. Seoul's constitution considers North Koreans as citizens of the Republic of Korea, meaning their legal status differs fundamentally from that of other foreign combatants. This principle, combined with the political sensitivity of anything involving Pyongyang, helps explain why Lee described the issue as one of national honour rather than mere diplomatic protocol.

Adding to the tension, the dispute comes amid a series of provocations on the Korean Peninsula, including recent demands from Seoul for an apology over blasts near the Demilitarized Zone, which North Korea has denied responsibility for. The cumulative effect is a period of heightened uncertainty in inter-Korean relations, with Seoul simultaneously managing confrontations with Pyongyang and a public spat with a fellow US-aligned partner.

Whether the row can be contained remains uncertain. Ukrainian officials have signalled a desire to move past the episode, while South Korean leaders insist on accountability. For Washington, the priority will be preventing the friction from distracting from broader coordination against shared adversaries, but the episode demonstrates how even allied governments can find themselves at odds when sensitive operations intersect with domestic politics and national pride.