Is this channel connected with History Collection? Because this video is somebody reading, word for word and without attribution, an article I wrote that was published there last week. Indeed, the entire channel seems to be somebody reading History Collection articles - many or most of them written by me.
The North Korean army got off to anything but a good start in the Korean War! The situation you describe was created by the intervention of the Chinese, as you yourself relate. The North Korean army was never the problem.