[Clyde]

Used means already in actions for months but S Kor said thousands NKor just enter.
As there is no reports of Nkor personnel being killed in numbers, 
we can concluded TS source is another rubbish news. 

It is more likely NKor sense Rus is winning, so probably asked Rus train Nkor real experience
of how to beat high tech weaponries. 

https://www.youtube.com/watch?v=q1WqCOXqvNQ

China soldiers should join in too to gain some experience since US soldiers are already there long ago.