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North Korea is likely to send more troops to Russia as early as July or August to bolster Moscow’s war effort against Ukraine, South Korea’s National Intelligence Service (NIS) said during a closed-door briefing, Yonhap reported on June 26.

According to lawmakers briefed by the NIS, Pyongyang has already begun recruiting soldiers for deployment to Russia. The latest intelligence adds to growing concerns about the expanding scope of North Korea’s involvement in Russia’s war.

The additional troop deployment would come on top of what Seoul estimates is already substantial support from North Korea, including the transfer of over 10 million artillery shells, and ballistic missiles in exchange for economic and technical assistance.

Yonhap’s reporting follows recent findings that Pyongyang may send up to 25,000 laborers to Russia to support drone production, specifically Shahed-type loitering munitions, at the Alabuga Special Economic Zone in Tatarstan, according to Japan’s NHK broadcaster.

In return, Pyongyang reportedly seeks training in drone operations, signaling an effort to integrate advanced unmanned aerial capabilities into its own military arsenal.

The developments come amid intensifying diplomatic exchanges between the two authoritarian regimes. Russian Security Council Secretary Sergei Shoigu traveled to North Korea on June 17 under a special directive from President Vladimir Putin.

After meeting North Korean leader Kim Jong Un, Shoigu announced that Pyongyang had agreed to dispatch 1,000 sappers and 5,000 military engineers to Russia’s Kursk Oblast.

North Korean combat units have already participated in front-line operations. Thousands of troops helped Russia repel a Ukrainian cross-border offensive into Kursk Oblast that began in August 2024.

Ukraine briefly held 1,300 square kilometers in the region before losing most of the territory during Russia’s March 2025 counteroffensive, which was supported by Pyongyang. The U.K. defense intelligence estimates place North Korean casualties at over 6,000.

Kyrylo Budanov, Ukraine’s military intelligence chief, said on June 9 that Russia and North Korea had agreed to begin domestic production of Shahed-136 drones on North Korean territory, further solidifying their military partnership.

During Russia’s May 9 Victory Day Parade in Moscow, President Putin personally greeted North Korean troops in Red Square, underscoring the alliance’s symbolic and operational depth.

Kim did not attend but remains one of the Kremlin’s staunchest foreign backers.

North Korea has already deployed around 11,000 elite troops to support Russia’s war against Ukraine, accounting for more than 20% of North Korean leader Kim Jong Un’s elite “personal reserve” force, Defense Minister Rustem Umerov said during a June 26 press briefing.

“These are soldiers specially selected based on physical, psychological, and other criteria,” Umerov said. “These units have already suffered significant losses.”

Umerov said intelligence indicates North Korea had considered sending additional forces to fight with Russia. However, according to Umerov, the move would further deplete its strategic reserves and increase risks to regime stability. There have been four known rotations of North Korean units deployed against Ukraine, according to Umerov.

According to a June 15 report from the United Kingdom’s defense intelligence, North Korea has likely sustained more than 6,000 casualties in Russia since the deployment of troops to Kursk Oblast in fall 2024.

U.K. intelligence attributed the high casualty rate to large, highly attritional dismounted assaults.

Russia’s growing military partnership with North Korea has raised concerns in Kyiv and among its allies. The two countries signed a Comprehensive Strategic Partnership Agreement in 2024. The treaty commits both countries to provide assistance if either is attacked.

Kim previously described the pact as having a “peaceful and defensive nature,” framing it as a formal security guarantee between the longtime partners.

In practice, Umerov said, North Korea is bearing the military burden, while Russia has not upheld its reciprocal obligations, raising concerns within the North Korean regime.

“Russia’s use of elite North Korean troops demonstrates not only a growing reliance on totalitarian regimes but also serious problems with its mobilization reserve,” Umerov said. “Together with our partners, we are monitoring these threats and will respond accordingly.”

Umerov added that Ukraine, working in coordination with its Western partners, is closely tracking the movement and deployment of North Korean units deployed to fight against Ukraine. He said Russia’s dependence on foreign forces may signal critical shortages in its own recruitment and mobilization efforts.

According to South Korea’s National Intelligence Service, North Korea is likely to send more troops to Russia over the summer. Pyongyang may also send up to 25,000 laborers to Russia to support drone production, according to the report.

The additional troop deployment would come on top of what Seoul estimates is already substantial support from North Korea, which includes the shipment of over 10 million artillery shells and ballistic missiles in exchange for economic and technical assistance from Moscow.