Ukrainian President Volodymyr Zelensky confirmed Monday more than 3,000 troops from North Korea have been killed so far fighting next to Russian forces.

Secretive North Korea has one of the world’s largest militaries, with 1.28 million active soldiers, but unlike in Russia, the Korean People's Army (KPA) has no recent experience of combat. Pyongyang’s army is “thoroughly indoctrinated but with low readiness,” says Mark Cancian, from the Centre for Strategic and International Studies (CSIS).

Over 3,000 North Korean troops killed, wounded in Kursk Oblast, Zelensky says * Satellite imagery suggests North Korea to supply more arms to Russia, WSJ reports * 'Mysterious' fire engulfs Russian Shahed warehouse,