Earlier quoted context omitted.
> You seem to not understand exactly what the situation is even if NK would get an early warning say 10min it would not even get it past the guy who answers the first phone get alone to the military in the field. You seriously think high level Chinese diplomats don't have very quick communication access to Kim Jong-un? Why would you think that? I think it's very likely they have phone access to multiple aids of which…
Again you are missing the point NK has about “11,000” cannons pointed at Seoul these are fixed installations capable of being destroyed in a conventional preemptive strike before anyone gets the order to fire. By the time it would take China to detect a US attack, figure out what to do, deliver a message to the NK leadership and that message can be relayed to the field there won’t be many canons left. I think you don…
Here's the last paragraph: North Korean anti-aircraft weapons “are not all that impressive,” Scales said, “but there’s lots of them.” Could the North Korea guns be taken down? “Sure, over time,” he said. “But by the time we do that, the damage they’d inflict on Seoul would just be staggering.” They go into the reasons for that earlier.