China has satellites, drones & recon planes.
And how many rockets will they allocate to each target... is it more than the number of incoming threats a TOR battery can handle?
They are going to need a shit load of those rockets then and they are going to be expensive...
China may also invade NK if there's a serious internal trouble.
They certainly might try, but when they invaded Vietnam to teach them a lesson it really didn't go very well for the Chinese... they have some new shiny stuff, but they really have yet to prove themselves.
Not going to suggest they are as bad as Saudi Arabia, but Saudi Arabia has spent an enormous fortune on modern capable western weapons and western and eastern mercenaries to operate them... they probably have the best Pakistani fighter pilots there are... and why wouldn't you... nice new planes... probably a huge pay rate... but as we have seen it doesn't always work out like it does on paper... in theory the Houthis should have been wiped out easily by the combined forces of several countries with new shiny equipment, but those sandal wearing rebels are not doing bad at all.
Sure they are probably getting support and advice at the very least, but they are the ones on the ground trading bullets and bombs and doing the hero stuff people like to think they can do but when push comes to shove... could they?
I have never been fired at... I'd like to think I would be brave for the guys around me, but I don't know that... kinda hope I never find out of course... that is some serious shit that normal people try to avoid normally.
SK doesn't want war... its economy and standard of living comes from commerce and peace... any serious conflict with the north and that all disappears and with the gloves off it can come down to who will put up with poor conditions longer and I would bet the NK could tolerate it longer... they have more experience of not getting the latest apple iphone the day it comes out.