I think it is meaningless to discuss military operation without knowning the underlying political objective.
Depend on what China want to achieve, the military operation can have various degree of success. If it is to conduct a US-style "regime change" operation, I'd say anyone would fail spectacularly. However, I think if the objective is narrowly focused on the nuclear issue alone, there are probably ways to give North Korea a bloody nose under the element of surprise. Then China can force the North Korea to take a political solution laid on the table.
I think a good example of this approach is 1962 war. China delivered a knock out punch but yet knows its limit.
Depend on what China want to achieve, the military operation can have various degree of success. If it is to conduct a US-style "regime change" operation, I'd say anyone would fail spectacularly. However, I think if the objective is narrowly focused on the nuclear issue alone, there are probably ways to give North Korea a bloody nose under the element of surprise. Then China can force the North Korea to take a political solution laid on the table.
I think a good example of this approach is 1962 war. China delivered a knock out punch but yet knows its limit.