Seoul and Washington report 10,000 Pyongyang troops in Russia, including near the frontlines, while Ukraine's intelligence cites even higher numbers, including officers and generals.
Official stated Seoul has a "legitimate need" to analyze North Korean military activities in the war in Ukraine and "feels the need" to establish a monitoring team.
South Korea's spy agency reveals North Korean troops and generals may have entered Ukraine battlefields, while Russia provides language training and continues military cooperation.