North Korea disclosed for the first time on April 28 that it had deployed troops to Russia to help Moscow regain control of the Kursk region, which had previously been occupied by Ukrainian troops.
North Korea Confirms It Sent Troops to Support Russian Forces in Ukraine
Russia said that North Korean soldiers had provided ‘significant assistance’ to its military in retaking the Kursk region from Ukrainian control.

North Korean leader Kim Jong Un watches a cadet practicing on the parallel bars during his visit to the Kang Kon Military Academy, in Pyongyang, North Korea, on Feb. 25, 2025. KCNA via Reuters