"The political relationship between Japan and China gradually deteriorated after the Tiananmen Square Incident in June 1989. After the turn of the century, sensational reports emphasizing the Sino-Japanese confrontation increased in both countries. Analysts began to express their concerns about the possibility of a clash between China, rising both economically and militarily, and Japan, which is the largest status quo country in East Asia and is seeking to enlarge its role in international security." (Quoted from site)