Not only the history of China, but also the whole human history is in constant war. According to the statistics of historians, it has been thousands of years since it was recorded in the world, and the period of truly complete peace on a global scale is only a few tens of days. The reason why human beings are always fighting is mainly to compete for living space and interests. In primitive society, they mainly fought for the control of the tribe. Later, after they evolved into countries, conflicts between countries began. With the enhancement of national consciousness, ethnic conflicts have begun again. Finally, after religion came into being, there was a religious conflict. With these contradictions and conflicts, human history is a history of constant wars.