China has announced a series of measures against Japan as the two countries engage in a tense standoff over Taiwan , a self-ruled island that Beijing sees as a Chinese province. The spat erupted on November 7, when Japanese Prime Minister Sanae Takaichi said a Chinese military attack on Taiwan could constitute a "survival-threatening situation" for Japan, potentially allowing Tokyo to exercise its legal right to collective self-defense. Beijing bristled at the remarks and lodged an official