This should serve as a notice to Chinese regime that in this day and age any expansionist ambition will be thwarted with equal or more force. China should learn to live with in their existing borders.
India doesn't want to accept their "existing borders" shared with China, now you ask China to live in their "existing borders"?
By the way, even Japan's closest ally--American refuse to define what is the "exsiting border" between China and Japan.
And Japan also have a problem to live within their "existing borders" shared by Korea and Russia.
Just keep in mind that China has billions of dollars worth of assets overseas and in time of any conflict they will be frozen or seized as well.
Just keep in mind that Canada and other Western nations also have billions of dollars worth of assets in China.
And I don't see where they promise the obligation of freezing Chinese assets in sino-japan conflict.
Canada and other Western nations will stand hand in hand with Japan therefore the it is up to Chinese regime to behave accordingly as per International rules and regulations.
Oh, yes, now you are the spokesman of Canada and other western nations.
Please name any western nations who publicly acknowledge Japan's sovereignty on disputed island.
For your information, even USA doesn't acknowledge either side's sovereignty.