The United States has shown a close and dangerous interest in Taiwan in recent years in order to break the power of China, with which it is in global competition in almost every field, and to confine China to the Indo-Pacific region. If the two great powers with nuclear weapons try to solve this problem with war, of course, it will lead the whole world to disaster. However, according to the Realist school in the International Relations literature, it is thought that these powers will not directly attempt war, based on the prediction that if a nuclear power attacks another nuclear power, both sides will be destroyed. Based on this thesis, we can say that the probability of a direct U.S.-China war is unlikely.