The battles in which DPRK soldiers participate are geographically closer to Davos than to Pyongyang. Europe needs to act as a strong global player, says Ukrainian President Volodymyr Zelenskyy at the World Economic Forum in Davos.

Ukrainian president warns there will ‘undoubtedly be more' North Korean troops captured by his country's forces

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.

Ukrainian special operations forces have given an insight into the brutal, near-suicidal tactics of the North Koreans they have faced in intense fighting in the Russian border region of Kursk.

While Russia has received support from various allies, recent reports suggest a growing presence of North Korean troops on the battlefield. Their involvement raises questions about their role in the conflict and the equipment they bring to the fight.