North Korean Troops Assemble in Russia’s Kursk Region, U.S. Officials Say

Thousands of soldiers from an elite unit of the Korean People’s Army began arriving on Wednesday and are expected to try to help expel Ukrainian forces from Russian territory.

Several thousand North Korean soldiers have arrived in Russia’s western Kursk region, where they are expected to participate in a coming counteroffensive meant to dislodge the Ukrainian troops who have occupied a portion of the region since August, one Ukrainian and two American officials said on Friday.

The North Korean troops have not yet entered the fight, and it is not yet clear what role they will play, the officials said, speaking on the condition of anonymity to discuss sensitive intelligence matters. Whatever their role, the officials said, any significant contingent of North Korean troops will allow Russia to keep more of its forces in eastern Ukraine, where they can stay focused on seizing as much Ukrainian territory as possible before the harsh winter weather sets in.

For weeks, the governments of South Korea and Ukraine have warned that thousands of North Koreans were training alongside Russian soldiers, with Ukraine putting the figure as high as 12,000 troops. And this week, U.S. officials confirmed that a contingent of North Korean troops had been transported by ship to Vladivostok, a large Russian city on the Pacific Ocean, in what Defense Secretary Lloyd J. Austin III called a “very, very serious” escalation.

On Wednesday, the first North Korean troops had made the nearly 4,000-mile journey to the Kursk region, with thousands more arriving each day since. A senior Ukrainian official with knowledge of the troop movements said that as many as 5,000 North Korean troops were expected to have mustered by Monday.

The troops, according to the officials, are part of an elite unit of the Korean People’s Army. They are being flown from Vladivostok aboard enormous Il-76 transport planes to a military airfield in western Russia, then driven into the battle zone, the Ukrainian official said.

There were mixed signals about whether additional North Korean troops would be sent to fight on Ukrainian territory, the Ukrainian official said. At the moment, they are only concentrating in the Kursk region.

Ukrainian troops entered the Kursk region in early August, taking about 400 square miles of territory in the initial weeks of the incursion. But throughout October, Russian forces have been ratcheting up their attacks on Ukrainian positions in the region, taking back several villages, although Ukraine still occupies about 250 square miles.

But after more than two months on Russian soil, Ukraine has so far failed to achieve one of its main goals in Kursk: diverting Russian troops from the fight in the Donbas region of Ukraine, where they are pushing back Ukrainian forces with slow but steady advances.

On Friday, Ukraine’s president, Volodymyr Zelensky, citing his intelligence services, said the North Korean troops would be deployed to the battlefield as early as next week.

“This is an obvious escalatory step by Russia,” Mr. Zelensky said.

How the addition of North Korean troops might change the dynamic on the battlefield, if at all, is unclear.

North Korean troops have not fought in any wars since the 1950s, and there are questions about the capabilities of even its elite units. Even before they take to the battlefield, they will have to contend with a language barrier, unfamiliar terrain and army customs that might be far different from their own.

If sent to the front lines in Kursk, they will face a battle-hardened Ukrainian force that Russian troops have been unable to expel since their surprising incursion in August.

“I don’t expect them to be a highly effective fighting force, if they end up on the front,” Emil Kastehelmi, a military expert at the Finland-based Black Bird Group, wrote on the social platform X. But, he added, that might not be the point.

“Someone has to die on the battlefield, and from the Russian viewpoint, it’s of course better if the someone is not Russian,” Mr. Kastehelmi said.

Beyond the immediate battle plans, another pressing question for the United States and its allies in Asia is what Russia’s president, Vladimir V. Putin, might have given North Korea in return for the troops.

For now, American officials say they have seen no evidence of a quid pro quo, but the worry is that for his trouble, North Korea’s leader, Kim Jong-un, might receive some kind of significant military assistance that could enhance the danger North Korea poses to its neighbors and the United States.

Officials and experts say that Mr. Kim is looking to improve the range of his intercontinental ballistic missiles and demonstrate that they are capable of hitting American cities.

For Mr. Putin, the benefits are clear. With more than 600,000 Russian troops killed or wounded since the start of the war, according to Western assessments, he needs more men to feed into his war machine. But he has also been reticent to spend the political capital on another large-scale draft. And so he has had to rely on atypical recruiting methods, such as enlisting imprisoned convicts and enticing mercenaries from poor countries like Cuba and Nepal to join the fight for cash.

Almost all of those troops, including the bulk of Russia’s domestic fighting force, have been thrown into the bloody, slogging offensive in Ukraine’s east. Mr. Putin has been loath to divert troops from that main battle to expel the relatively small contingent of Ukrainians occupying a patch of Russian territory in the Kursk region.

But there are signs his patience with the incursion is running low, with this month’s increased efforts to dislodge the Ukrainians even before the North Koreans arrived.

On Thursday, Russia’s lower house of Parliament ratified a mutual defense treaty with North Korea that Mr. Putin had signed with Mr. Kim in June. It was a rubber-stamp vote, but Mr. Putin used it to reaffirm Moscow’s ties to North Korea and send a signal that he was drawing in allies who would bolster his standoff with the West.

Constant Méheut contributed reporting from Kyiv, Ukraine

Our Coverage of the War in Ukraine

• A Ukrainian Loan Backed by Russian Assets: The Group of 7 nations finalized a plan to give Ukraine a $50 billion loan using Russia’s frozen central bank assets, Biden administration officials said.
• A Test for China-North Korea Bonds: North Korea’s decision to dispatch troops to help Russia subdue Ukraine may put another Kremlin ally, China, in a tough spot diplomatically.
• New U.K.-Germany Defense Pact: The two governments have agreed to strengthen military cooperation and develop sophisticated weapons in a move that reflects growing concern in Europe over global security threats, particularly from Russia.

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