Relationship between China, Taiwan and Europe

China and Taiwan have historical relationship, and Taiwan is a part of China for 5,000 years, in 1895, Taiwan have separated from China since China signed "Treaty of Shimonoseki", then Taiwan became a part of Japen. In 1945, China have declared Taiwan have been a part of China, Japen declared Taiwan have been separate from Japen, and Taiwan declared independent, then it forms a subtle relationship between these three countries. In 2023, even Taiwan already independent, China claimed Taiwan still is a part of China, "international police" America in order to keep and maintain this triangle area peace, it build a long military chain surrounding Taiwan, from Japanese island to Taiwan island, however, contradict to America's mind, this cause tension between China and Taiwan rather than peace, and some significantly questions became to appear, will China invade Taiwan violently, and will America and Europe can really stop China form being attack Taiwan, and will the problem between China and America these two super power cause World War 3.