A ground game would be inevitable if any real action were to take place. Warheads can be smuggled anywhere and hidden in small bunkers, or someone’s basement, or under a woodpile next to a hen house. It is ridiculous to sit around and think you can just bomb them with aircraft and cruise missiles like it’s some video game
The major military impediments to the South Korean Army marching to the Yalu are that the roads in North Korea would be clogged by civilian refugees trying to get the hell out of North Korea, and ROKA logistics capabilities in the many mountains where all the bridges would be down.
I wonder if the warheads can give off enough radiation to be detected from the air? Satellites?