North Korea is poised to send more than 100 of its fearsome M1989 Koksan howitzers to Vladimir Putin's troops in Ukraine, a top general has claimed.

South Korea’s military says it suspects North Korea is preparing to send additional troops to Russia after its soldiers already deployed on the Russian-Ukraine war fronts suffered heavy casualties

Ukraine has found “irrefutable evidence” of North Korea’s involvement in Russia’s war against his country, president Volodymyr Zelensky said this week as he announced the capture of two North Korean soldiers.

North Korea is likely preparing to send additional troops to Russia after suffering heavy losses in battles against Ukrainian forces, South Korea's military said Friday.

Ukraine President Volodymyr Zelenskyy said this month that as many as 4,000 North Korean troops have been killed or wounded in recent weeks, with only two captured alive. Both men were wounded and transferred to custody in Kyiv, where Zelenskyy said they are being interrogated and treated for their injuries.

All North Korean recruits are taught a song that includes a verse about saving their last bullet for themselves to avoid capture, one former soldier told NBC News.