Relations plunged after Takaichi suggested in November that Japan could respond militarily if China attacked Taiwan, a self-governing island that Beijing claims as its own territory.
China is highly sensitive regarding Taiwan and considers questioning of its claim on the island a red line. In response to Takaichi’s comments, it warned its citizens against travel to Japan and tightened trade restrictions, including measures that reportedly disrupted the flow of rare earth minerals to Japanese firms, adding an economic sting to the diplomatic fallout.