I need to tell you that your wording is inaccurate. China is not invading Taiwan because Taiwan and mainland China both belong to China. Legally, the constitutions of Taiwan and mainland China both state this. Historically, the island of Taiwan first appeared in Chinese documents in 239 AD, when ancient China sent an expedition to explore the place - a fact that Beijing now uses as the basis for its territorial claims. Taiwan then briefly experienced a period of Dutch colonial rule (1624-1661), and then Taiwan was ruled by the Qing Dynasty government from 1683 to 1894. In 1894, Japan launched the Sino-Japanese War against China, and China was defeated and ceded Taiwan and the Penghu Islands to Japan. From then on, Taiwan became Japan's first overseas colony and began a 50-year colonial rule until 1945. Later, China's second civil war broke out, and the defeated Chinese Kuomintang fled to Taiwan and became the ruling party in Taiwan. Later, due to the intervention of the United States, the two sides have been unable to complete the unification of the territory, which has led to the current tense situation. From the ethnic and cultural perspective, Taiwan's earliest political parties also came from mainland China, and the majority of the population also came from coastal cities in mainland China. Therefore, Taiwan's main languages are still southern Chinese dialects and Mandarin (just with slightly different accents). They belong to the same ethnic group as mainland China, and their traditional culture is the same. They use traditional Chinese characters (mainland China used to have a unified character type, but for the convenience of teaching, mainland China changed traditional Chinese to simplified Chinese, but both sides can understand each other). The above four points are enough to show that Taiwan has been part of China's territory since ancient times, so if Taiwan and mainland China go to war, it must be a civil war, and there is no such definition as "invasion".