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.

It will mostly be missile and artillery troops who typically operate hundreds of tubed and rocket artillery systems as well as the KN-23 short-range ballistic missiles Pyongyang has already provided Moscow,

Ukrainian forces described a different kind of enemy, fighting with unfamiliar tactics and little option to retreat.

Russia signed a strategic partnership treaty with Iran on Friday that follows similar pacts with China and North Korea. All three countries are adversaries of the United States, and Russia has used its ties with them to help blunt the impact of Western sanctions and boost its war effort in Ukraine.

"I didn't even know who we were fighting against," the captured soldier from Pyongyang told Ukraine's Security Service.

Around 1,000 North Korean soldiers have been killed and 3,000 wounded while fighting in Russia’s war against Ukraine, the BBC’s Russian service reported Wednesday, citing unnamed Western officials. North Korea is believed to have sent thousands of troops last fall to help the Russian military drive out Ukrainian forces that are occupying the