Even though a country is big, it will perish if it is warlike. Although the world is safe, if you forget to fight, you will be in danger. This book selects the stories of several ancient monarchs using soldiers from the traditional Chinese cultural classics, and divides the disasters of war, the effectiveness of kingly politics, and the legitimate use of force. The four chapters, , the inevitable end of war, combined with the needs of governing the country, conduct an essential analysis. Using the past to discuss the present, and the past for the present, aims to help the public deeply understand Chinas development path, national defense policy and military strategy in the new era, guide the establishment of a correct view of war, and provide useful information for eliminating international conflicts, resolving world conflicts, and promoting the construction of a community with a shared future for mankind. learn from.