Ukraine President Volodymyr Zelensky reported that more than 3,800 North Korean soldiers have already been killed in the Kursk region.

Weapons and notes left on dead North Korean troops in Russia give Ukraine a glimpse into their mindset — and show how they are quickly adapting to modern war.

South Korean lawmaker Lee Song-kwon, who was briefed by the country's intelligence agency, said the number of wounded and killed North Korean soldiers shows

A wounded North Korean soldier captured by Ukrainian forces in Russia's Kursk region earlier this month told interrogators that Pyongyang's troops fighting for Moscow are suffering major losses. Ukraine said last week that it captured two North Korean soldiers in the border region and posted videos of their interrogation,

North Korean leader Kim Jong-un reportedly sent New Year’s messages to North Korean soldiers deployed in Russia's war against Ukraine, urging them to "fight with courage" until the end, according to a news report.

Russian forces continue to advance on Ukrainian positions in Kursk, according to the journalists' sources, citing Ukrainian military personnel fighting in Russia’s Kursk Oblast. The "sudden absence" of North Korean troops on the battlefield may indicate that they are regrouping and assessing their future actions,