1st, the B-52 entry into the zone was a challenge in the sense that they wanted to see how aggressive the Chinese would be to that type of entry.
A B-52 is slow and gainly. The Chinese, if they identified them early on as they indicate, could easily have gotten out there in those two plus hours and shewed them away...but they did not and the US found out more about the PRC's intent.
But the B-52s patrolled only the bare edge of the eastern side of the ADIZ.
China definitely could have sent fighters there and it was obviously a deliberate choice to not to.
As to the others. Did the PRC say they actually intercepted them. I read that they identified them.
Fact is, I do not believe they intercepted any of them as in getting right up next to them and flying along side.
I believe they identified them and that is a huge difference. If the aircraft are operating in the ADIZ in a normal, non-war footing, then their emissions and their radar signature will allow the Chinese to identify that at pretty long distances. I believe that is what happened.
I agree that the wording is ambiguous. However the Chinese defense ministry has also said they deployed J-11, Su-30 and J-10 fighters for "identification".
If it was only AEWC/ELINT aircraft to ID the planes they wouldn't need to sortie fighters.
At this stage I'm inclined to believe that their fighters did at least monitor the US and Japanese aircraft -- that is to say, they were sortied. Whether they flew right up close to them close enough to take pictures is another story.
Frankly I think the PLA may have motivation to actually not fly up too close to escalate tensions.
So I do modify my previous statement -- I believe China has sent multiple aircraft up in the past day to "monitor" and "identify" the various aircraft. Technically that is not be the same as "interception," but depending on the proximity between the fighters and the US/Japanese aircraft, it certainly demonstrates that the PLAAF and PLANAF fighters have the capability to get in close shoudl they want to.
The facts we know:
The PLA tracked and IDed the specified US and Japanese aircraft
The PLA sortied fighters, including flankers and J-10s
Whether those fighters were up close "intercepts" is a different story, but then again what constitutes an "intercept"? 10km away or 100m away?
Certainly you don't need fighters up there to do the job that a single KJ-2000 or KJ-200 can do.
An EP-3 that has any of its sensors in any active mode, and E-767, a P-3, and even the fighters, if operating in a non-war mode with any sensors actively in operation will be able to be identified without ever getting anywhere close to them...or even in missile range.
And that is fine. The Chinese in admitting and revealing this are saying that they are monitoring that space. But in not getting all hot to trot and sending the aircraft right up along side them are actually doing what the spokesman said.
Yes.
Like I said, the wording is ambiguous.