This is coolbert:
Forget about North Korean intermediate and intercontinental ballistic missiles.
Forget about a profusion of North Korean artillery firing en masse.
Forget about North Korean rocket artillery of the KN-09 version.
Thank An-2 utility aircraft!
Thanks to Fox News and the article by Lucia I. Suarez Sang
"North Korea's antique airplane could be its most dangerous weapon yet"
Antonov-2 Colt [NATO code name] short take-off and landing utility aircraft. Ancient and as described an antique but nonetheless can be used by the North Korean for a variety of purposes.
RADAR SIGNATURE VERY SLIGHT!
"North Korea State Media (An Antonov An-2 airplane, first flown in 1947, is part of Kim Jong Un's military arsenal.) The dated  aircraft raises the concern that they could be used to transport a nuclear bomb to be dropped quite easily without triggering any radar at any specific target."
. . . .
“'The reason the An-2 still flies is that there is really no other aircraft like it,' aviation writer Bernie Leighton, who has flown in an An-2 in Belarus, told the BBC. 'If you need an aircraft that can carry 10 soldiers, people or goats, that can take off from anywhere and land anywhere ‒ it is either that or a helicopter.'”
More than anything else, An-2 to be used to drop paratroopers near a target. Ten man teams of ranger/commando type ground soldiers of the most highly trained variety their mission to create disruption and chaos behind enemy lines.
NORTH KOREA THE MILITARY DOCTRINE OF WHICH IS A MIX OF CONVENTIONAL AND IRREGULAR FORCES USED IN COMBINATION!
Kim has nukes. Kim has long-range missiles. Kim has antique warplanes. What exactly is there that Kim doesn't have?