Japanese Prime Minister Sanae Takaichi stated Japan might respond militarily if China invades Taiwan, marking a shift from strategic ambiguity.China retaliated by summoning Japan's ambassador and issuing a travel warning that caused over 500,000 trip cancellations, impacting Japanese tourism and stock prices significantly.Additionally, China warned against Japanese seafood imports while Japan intercepted a Chinese drone near Yonaguni Island amid rising military tensions in the region.