One can't blame Japan in cutting down its aid to China in view of their present territorial dispute.  China's authoritative pronouncement of ADIZ in the East China Sea is another example of its never-ending  desire to expand its empire wherever it can.  China is not a super power yet.  But one needs to visualize what China will be capable of doing once it becomes a super power.  By declaring ADIZ in that part of the world, China is evincing its prowess to the small neighboring countries by ignoring all international zoning laws along with the sentiments of these nations.  Many countries are so scared of China that they have started reporting the routing schedule of their civil airlines to China before flying over that part of the East China Sea.  However, Japan, South Korea and the USA do not recognize the ADIZ and the live example is USA flying two of its B-52 recently from Guam to Japan without any incident.  Now the question arises, if China is not serious about the enforcement of declaration of ADIZ in the East China Sea, what is the purpose of creating this nuisance in that part of the world.  This writer believes that China before it becomes a super power, it is using all these tactics to test the will power of the neighboring countries as to how far these nations can be pushed against the wall.  China is not using this type of tactics in the coastal areas only, even though Chinese authorities claim so.  But they are implementing the same tactics in the land areas too.  A live example is China's unilateral announcement of claiming Arunachal Pradesh ( an Indian territory) as part of China, China's illegal and forceful occupation of Leh/Ladakh area ( again an Indian territory) since 1962, China's occupation of Tibet since 1959 and so on.  It seems that China's recent fiscal and military strength are the driving forces of all these illegitimate claims, and the time has come that this insatiable territorial ambition is stopped.  Unfortunately, it is true that there are not too many nations which are capable of confronting China militarily except the United States and Russia.  Since Russia and China have good relations with each other, it is not expected of any such action from the Russian end.  Therefore, the worldly eyes are looking towards the United States to initiate some concrete action to check the seemed-to-be unstoppable foot steps of China into others' territories before it becomes too late. Definitely, building military ties among Japan, India and other countries in the South and East China Sea area will pose a substantial psychological threat to stop China to initiate any aggressive military move.