plawolf
Lieutenant General
I think I agree with the hard substance of your analysis, but I disagree with the characterization of Japan's behavior. I don't think either side was sincere about using force, and both sides knew this. Both sides have incentive to posture and bluff over the islands, but neither have a real incentive for this to escalate into a firefight. Abe is following through with some campaign promises, and his movements are largely symbolic to consolidate his base of support on the nationalist flank (and also, I suspect, to consolidate support for increasing military spending for various reasons that deal with Japan's long term security). Meanwhile, I probably don't have to explain that China has incentive to follow through with its own posturing, given the number of parties it must deal with on territorial disputes. I do think that both sides recognize that this as a cat and mouse game necessary to sustain their credibility on different political fronts. So far nothing about this set of incidents deviate from other similar incidents that have occurred in the last decade or so.
Where did I say I thought the Japanese were seriously wanting to escalate the situation into an actual shooting war?
Both sides are mainly posturing, but when Japanese government officials go on record suggesting their pilots fire warning shots, it would be foolish and irresponsible for the PLAAF to dismiss that out of hand and not take precautions and countermeasures.
However, I think you are too easily dismissing just how dangerous the situation is, because it is very very different to anything that has happened before between China and Japan. The relative economic, political and military strengths of China and Japan has shifted massively compared to a decade ago. Then, the Japanese had undisputed military superiority and everyone knew it. But that is not the case any more and everyone is still adjusting to the new dynamic.
Both sides are also in uncharted waters with regards to the actual dispute, with Chinese ships and aircraft treating the Diaoyu Islands as Chinese territory and actual fighters from both sides facing off against each other, with neither side really knowing what the bottom line of the other is, and both sides constantly testing each other with new situations to see what their responses are.
It is this new and changing dynamic that holds the greatest potential for unintentional conflict, and that is before you take into account the deep mistrust and perhaps downright hostility the two militaries feel towards each other.
Neither side likely wants to war, but neither side can be absolutely sure that the other won't try to deliberately cause some sort of incident to gain an advantage, so there is real scope for misunderstanding and hostilities to break out because of it. And once the first spark has been struck, it's anyone's guess how big the conflagration will ultimately be.