You might find this very interesting....it reveals military records that were leaked out of N.Korea....over 1,000 docuents which were recorded at the time Kim Un took over the regime and that of his first 3 yrs.
Included in this even his first operations were revealed..”IronWall”...and other specific simulations of how his troops would move,etc.....They show equipment, plans , figures etc. etc.
Video also shows who these documents were taken to and verification... they appear to be legit. Military information has apparently let our guys know things with certainty that could only be assumed possible.
At any rate it’s a fascinating video to watch because of the particulars it shows that you also hear...
https://www.youtube.com/watch?v=wkfjJfNjvTQ