South Korea and Ukraine, both facing the same threat of close ties between North Korea and Russia, are experiencing rising tensions. The South Korean government recalled its ambassador to Ukraine on October 8, citing a breach of a confidential agreement regarding the transfer of two North Korean soldiers captured by Ukrainian forces.
The conflict began in January 2026 when two North Korean soldiers were captured by Ukrainian troops on the front lines in Russia's Kursk region. Ukrainian President Volodymyr Zelensky publicly disclosed the capture on January 11, and the injured soldiers were moved to Kyiv for questioning. While it was already known that North Korea was supplying weapons and ammunition to Russia, this marked the first instance of North Korean soldiers being captured in battle, indicating North Korea's deeper involvement in the conflict.
Ukraine later stated that the two prisoners wished to return to South Korea. However, the process was complicated. According to South Korean law, North Korean residents are considered citizens of South Korea, but the custody of the prisoners remained with Ukraine. Close cooperation between the two countries was necessary to verify their identities and willingness to defect.
Security concerns also posed challenges. If news of their transfer to South Korea became public, their families remaining in North Korea could face retaliation. Additionally, the interests of both countries diverged. For Ukraine, the North Korean prisoners were a strong card to highlight North Korea-Russia cooperation to the international community, while South Korea preferred a quiet transfer to avoid provoking North Korea and Russia.
This rift became apparent in September. According to the South Korean government, the two prisoners arrived in South Korea in mid-September. The issue was how the transfer was made public. The South Korean government claimed it had agreed with Ukraine to keep the transfer process confidential, while Ukraine maintained that while there may have been practical discussions, there was no official documentation.
In response, the South Korean government took the significant step of recalling its ambassador. This decision reflects the importance of intelligence regarding North Korean military tactics and North Korea-Russia cooperation for South Korea's military.
At the same time, controversy arose over oil products shipped from South Korea to Russia. According to the Guardian, an analysis of port records and ship tracking data revealed that over 176,000 tons of oil products were shipped from various South Korean ports, including Ulsan and Yeosu, in July and August. Seven tankers made 14 trips to Russia's Far East, including Vladivostok. This situation has drawn criticism from Ukraine, which continues to conduct drone attacks on Russian oil facilities.
If the products sold in private transactions were transferred to Russia through a third party, it would be difficult to classify this as support from the South Korean government. It is similar to a gas station owner being unable to control where customers take the fuel they purchase. Kim Yong-tae, a member of the ruling People Power Party, acknowledged that oil products are not subject to sanctions like semiconductors but emphasized the need to track and manage vessels that enter with potentially false destination reports.
There are also significant differences in positions regarding lethal aid. Ukraine urgently seeks South Korea's defense capabilities to quickly produce 155mm shells, self-propelled artillery, and air defense systems. However, South Korea is cautious about provoking Russia. Sending lethal weapons could rapidly deteriorate relations with Russia, which might respond by providing North Korea with critical military technologies, such as ICBM re-entry technology or nuclear submarine technology.
Meanwhile, the South Korean government has taken additional measures today, deciding to withdraw some personnel from its embassy in Ukraine following the ambassador's recall. The government has demanded an apology from Ukraine for publicly disclosing the transfer of the North Korean prisoners, but Ukraine has effectively refused to apologize, prompting further actions from South Korea.
* This article has been translated by AI.
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