They smelled weakness, because they tested an SRBM into the Sea of Japan in May 2019 in an effort to upgrade their telemetry and trajectory, to see what Trump would do. Since he was so invested in claiming everything he did with KJU was a splendid success, they knew they had him by the balls because his temperment would be not to admit they had screwed him. So they did it again, and again and again. Something like 15 launches until they could get the trajectory, speed Azimuth just right (variable trajectory) to defeat THAAD and Trump was either silent, or his unbelievable “no problem. Every country tests missiles” even though a violation of the very Singapore agreement he signed if not the North-South Panumunjom agreement from the Kim-Moon summit. They rolled him like a drunk in a cheap alleyway.
“his temperament”
Just the stupidest excuse there is LOL!
The MSM love it though!
Overall, I’d say NK is not a big success, and Biden will make it worse.