I'm speculating that the recent Senkaku/Diaoyutai move by the Chinese/Russian navies was jointly coordinated - as both sides would benefit from this.
It gives Russia more leverage against the USA and gives China more leverage against Japan.
Escalating against Japan in the naval realm wasn't really an option even 2 years ago given the naval balance before, which was part of the reason why it didn't happen.
But now China has four Type-52D destroyers in service with 2-3 being commissioned every year. Plus the 'Monster' Coast Guard ships are in now service, and according to the specs, theoretically it could safely ram any ship in the Japanese Coast Guard and also any Japanese Naval Destroyer.
But just because the capability is there doesn't mean it is necessarily a good idea.
It gives Russia more leverage against the USA and gives China more leverage against Japan.
Escalating against Japan in the naval realm wasn't really an option even 2 years ago given the naval balance before, which was part of the reason why it didn't happen.
But now China has four Type-52D destroyers in service with 2-3 being commissioned every year. Plus the 'Monster' Coast Guard ships are in now service, and according to the specs, theoretically it could safely ram any ship in the Japanese Coast Guard and also any Japanese Naval Destroyer.
But just because the capability is there doesn't mean it is necessarily a good idea.