From 65438 to 0908, The Strategy, edited by Ying and published by the Army Preparatory University Hall, was the highest-level work on war and military theory, as well as a modern bourgeois military treatise. The book is divided into 17 chapters, including the definition and value of war, the relationship between politics and war, the characteristics and strategic trend of modern war, strategic attack and strategic defense. The author thinks: "All war fighters will resort to powerful means in the end in order to safeguard and implement their own country and other countries." He also said: "War is the last tough means of politics." These views are basically consistent with clausewitz's "War is a violent act that forces the enemy to obey our will" and "War is just a continuation of politics by another means". In the aspect of strategic guidance, the author combines the basic ideas of clausewitz's On War and Bert's Principles of Strategy, and divides strategies into offensive strategies and defensive strategies. The author points out that the first principle of strategy is to seek the decisive battle of the enemy's main force, and the second principle is to carry out the decisive battle of "gathering all the forces of the national army" These principles are the military viewpoints developed by the bourgeois military theorists in modern Europe, summing up the experience of the Napoleonic War, and have had a certain influence on the development of China's modern military thoughts.