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North Korean troops fight for Russia
Since Oct 2024 (~15,000)· Treaty or event
FactTreaties, membership, measured data, events.
North Korea has sent roughly 14,000–15,000 soldiers, plus missiles and millions of artillery shells, to help Russia fight Ukraine since late 2024.
See it on the Geopolitics map →The picture
The first troops arrived in October 2024 and fought to push Ukrainian forces out of Russia's Kursk region; Moscow and Pyongyang admitted the deployment only in April 2025. They operate under a June 2024 treaty with a mutual-defense clause. Losses have been heavy: Ukrainian and South Korean estimates put killed and wounded at 6,000–7,000 or more (estimates vary). Engineers and construction workers followed in 2025, and roughly 8,500–11,000 personnel remained in Russia during 2026.
Why it matters
It is North Korea's first major foreign combat deployment in decades, earning cash, battle experience and possibly Russian military technology, and it ties European and Korean security together.
Key facts and numbers
South Korea's National Intelligence Service, Ukrainian military intelligence, two captured North Korean soldiers interviewed in Kyiv, and confirmations by Russia's General Staff and North Korea's KCNA in April 2025.
What to watch
What Russia gives in return, possibly submarine, missile or satellite technology, is not publicly known; whether more troops follow is debated.
Connections (2)
▸North Korean troops fight for Russia were sent by North Korea (DPRK)Fact
The relationship
Kim Jong-un sent the troops under the 2024 defense treaty with Russia, the North's first large combat deployment abroad in decades. In return Pyongyang reportedly gains cash, oil, food and possibly military technology, plus combat experience in drone-era warfare.
Since when and why
First units reached Russia's Kursk region in October 2024; North Korea admitted the deployment in April 2025 and later held ceremonies honoring its dead.
How we know
South Korean and Ukrainian intelligence, captured North Korean soldiers, and confirmations by Russia's General Staff and North Korea's state media (KCNA).
What to watch
Exact troop numbers and losses, and what technology Russia has transferred in return.
▸North Korean troops fight for Russia alarmed South Korea (Republic of Korea)Widely agreed
The relationship
Seoul fears the deployment gives North Korea's army real combat experience and wins Russian help with satellites, submarines or missiles, while hollowing out sanctions. The Yoon government warned it might arm Ukraine but did not; the Lee government has kept the issue low-key while seeking talks with Pyongyang.
Since when and why
South Korea's National Intelligence Service first disclosed the deployment on October 18, 2024; Seoul then summoned Russia's ambassador.
How solid?
Statements by South Korea's presidential office and intelligence briefings to lawmakers; most analysts share the security concerns.
What to watch
How much Russian technology has reached the North, and whether captured North Korean soldiers who asked to go to South Korea will be allowed to.