Russia is reportedly training North Korean soldiers in deadly drone techniques, in a move Ukraine says threatens both itself and South Korea.

(Reuters) - Ukraine's top military commander, Oleksandr Syrskyi, said on Saturday that there were reports North Korean troops were preparing for combat alongside Russian forces.

Russia is expending more artillery rounds than it can produce, which can lead to tactical losses. As such, Russia has turned to North Korea to address this shortfall.