Japan and China mark half a century of diplomatic relations on Thursday, but analysts say there is little to celebrate as ties grow increasingly acrimonious over territorial disputes, rising defense spending and the fate of self-ruled Taiwan.
While the relationship went into a deep freeze around 2012 amid tit-for-tat moves over the disputed Senkaku Islands in the East China Sea, signs of a thaw appeared in 2018 when Chinese President Xi Jinping seemed poised for his first state visit to Japan.
But any potential for a breakthrough was short-lived.
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