South Korea stays cautious on Ukraine air defence request amid new North Korea troop fears
Synopsis
As Zelensky publicly warned that up to 50,000 North Korean troops could soon reinforce Russia, South Korea held firm on its no-lethal-weapons line — even while admitting the North Korea-Russia pact directly threatens its own security. The gap between Seoul's stated concern and its actual policy response is growing harder to justify.
Key Takeaways
South Korea reaffirmed on 10 August that it will not supply lethal weapons to Ukraine , citing domestic law.
Ukrainian President Zelensky warned that 30,000 to 50,000 North Korean troops are set to be deployed to Russia .
North Korea is believed to have already sent around 20,000 combat troops and military engineers to the Kursk region.
The North Korea-Russia mutual defence pact was signed by Putin and Kim Jong-un in June 2024 .
Seoul called the North Korea-Russia military cooperation a direct security threat and a violation of UN resolutions .
South Korea maintained a guarded position on Monday, 10 August over Ukraine's request for air defence systems and other military support, with a senior Seoul foreign ministry official reiterating that any defence material supply is governed strictly by domestic law — even as Ukrainian President Volodymyr Zelensky warned that North Korea is preparing to send an additional 30,000 to 50,000 troops to support Russia.
Seoul's Official Position
"South Korea's supply of defence materials to any country has always been carried out in accordance with domestic law," the senior foreign ministry official said, declining to be named. The official added that Seoul "will continue reviewing measures to help Ukraine recover peace and rebuild," citing ongoing support in energy, infrastructure, healthcare, and education.
The remarks were widely interpreted as a reaffirmation of South Korea's longstanding policy: humanitarian assistance to Kyiv, but no lethal weapons. The official did not confirm or deny whether diplomatic discussions on weapons supply had taken place, as Zelensky had suggested.
What Zelensky Said
Zelensky shared an interview on his X page on Sunday, 9 August, stating, "A decision has been made for 30,000 to 50,000 North Koreans to be deployed on the territory of Russia." He argued that North Korea would gain critical experience in modern warfare through this arrangement, and that Seoul should deepen cooperation with Kyiv given the evolving threat.
"They have a legal restriction under their Constitution. But we would like to have this cooperation and are counting on it. Our diplomats are in contact," Zelensky wrote.
North Korea-Russia Military Ties
The broader backdrop is a deepening military alignment between Pyongyang and Moscow. Following a mutual defence pact signed by Russian President Vladimir Putin and North Korean leader Kim Jong-un in June 2024, North Korea is believed to have already dispatched approximately 20,000 combat troops and military engineers to the Kursk region to bolster Russia's war effort against Ukraine.
The Seoul official acknowledged the gravity of the situation, stating that military cooperation between North Korea and Russia "is directly related to our security and violates the United Nations resolutions." The official added: "Our government's position is that this cooperation should stop immediately. We are following the matter closely."
Why Seoul's Restraint Matters
South Korea is one of the world's leading arms manufacturers, and its potential entry as a weapons supplier to Ukraine would represent a significant strategic shift. Notably, Seoul has already supplied artillery shells to US stockpiles that have indirectly supported Ukraine — a distinction that has allowed it to maintain a careful diplomatic balance between its alliance with Washington and its concerns about provoking Pyongyang and Moscow.
Critics argue that as North Korean troops gain battlefield experience in Ukraine, the security calculus for Seoul changes fundamentally. Whether that pressure translates into a policy shift remains to be seen, with the South Korean government showing no indication of an imminent reversal.
Point of View
Yet refuses to supply the weapons that could materially weaken that axis. The constitutional argument is real, but it is also increasingly convenient. As North Korean troops accumulate battlefield experience in Ukraine, Seoul's inaction has a compounding cost — not just for Kyiv, but for its own long-term deterrence posture. The question mainstream coverage underplays is whether South Korea's restraint is principled policy or strategic hedging that is running out of road.
NationPress
10 Aug 2026
Frequently Asked Questions
What is South Korea's current policy on supplying weapons to Ukraine?
South Korea maintains a policy of providing only humanitarian assistance to Ukraine — covering energy, infrastructure, healthcare, and education — while withholding lethal weapons. A senior foreign ministry official reaffirmed on 10 August that any defence material supply must comply with South Korean domestic law.
What did Zelensky say about North Korean troop deployments?
Ukrainian President Volodymyr Zelensky stated on 9 August that a decision had been made to deploy 30,000 to 50,000 North Korean troops to Russian territory. He shared the remarks via his X page and called on South Korea to deepen cooperation with Ukraine, including supplying air defence systems.
How many North Korean troops have already been sent to Russia?
North Korea is believed to have already dispatched approximately 20,000 combat troops and military engineers to Russia's Kursk region, following a mutual defence pact signed by Putin and Kim Jong-un in June 2024.
Why does North Korea's involvement in the Ukraine war concern South Korea?
Seoul's foreign ministry acknowledged that military cooperation between North Korea and Russia 'is directly related to our security and violates United Nations resolutions.' The concern is that North Korean forces are gaining modern warfare experience that could be used against South Korea in a future conflict.
Has South Korea confirmed diplomatic talks with Ukraine on weapons supply?
No. The senior South Korean official declined to confirm or deny Zelensky's claim that Ukrainian and South Korean diplomats were in contact over weapons supply, offering no details beyond the government's standard position on domestic legal constraints.
