The root cause of the current state of China-Japan relations lies in Japanese Prime Minister Sanae Takaichi's fallacious remarks on Taiwan question, which constitute a breach of faith, undermine the political foundation of bilateral relations, and challenge the post-war international order, Foreign Ministry Spokesperson Mao Ning said on Friday in response to Japan's downgrading its description of ties with China from "one of the most important bilateral relationships" in the 2025 edition to simply "an important neighboring country" in the ...