Sun Tzu's Art of War has been widely used in modern military fields. Many well-known military analysts in the world believe that nearly 2,500 years after the death of Sun Tzu, the famous Chinese military thinker, is profoundly affecting the modern battlefield. According to relevant reports: Since the late 1970s, the United States has held thousands of lectures on "The Art of War" among Department of Defense officials and US military officers. General Kelly, commander of the U.S. Marine Corps, believes that "Sun Tzu's Art of War" is the foundation of all maneuver warfare. He made the book an annual reading for the troops, requiring every Marine to read it.

Recently, an expert named Mark McNeely wrote a book called "Sun Tzu and the Art of Modern Warfare". He said: ""Sun Tzu's Art of War" is a must-read book for high-level military students and has been integrated into the military doctrines of the U.S. Army and Marine Corps." The publisher of this book introduced this book to Western readers. , calling "Sun Tzu's Art of War" a "Swiss Army Knife" of military theory, enough to deal with any situation.

James Clavell, an American who translated "The Art of War" said: "If I were the supreme commander, or was elected president or prime minister, I would have to establish it in the form of law: All officers, especially generals, must take the "Thirteen Chapters of Sun Tzu" exam twice a year, one oral exam and one written exam. General officers who fail the exam will be automatically dismissed immediately and no appeal will be allowed. Officers with military ranks will be automatically demoted. "

After World War II, strategists from developed Western countries once again discovered the great value of Sun Tzu's Art of War and used its strategic principles to think about practical and difficult strategic issues. Get satisfactory answers and results. For example, some experts formulated a national nuclear strategy based on Sun Tzu's strategic deterrence theory. In his book "Real War", Nixon directly used the ideas of Sun Tzu's Art of War to criticize the United States' strategy of "Mutual Assured Destruction" at that time.

Many modern military theories are based on Sun Tzu's Art of War. When Lieutenant General Richard Lawrence, a famous American strategic theorist and president of the U.S. National Defense University, elaborated on "Air-Land Battle - Deep Attack", he believed that the principle on which this combat principle is based is a "strange change" from "The Art of War" and "avoiding the truth and attacking the fictitious". The new version of the United States' 1982 "Outline of War" directly quoted a large number of Sun Tzu's famous sayings on the Art of War. The members of the writing team of this "Battle Outline" conducted careful research on Sun Tzu's Art of War for a long time. The second chapter of "Military Strategy" published in the United States in 1983 is titled "The Evolution of Military Strategy—The Wisdom of Sun Tzu."

Many strategic decision-makers directly rely on Sun Tzu’s Art of War to think about practical war issues. There is information that when the Gulf War broke out in 1990, there were two books on the desk of US President Bush, one was "The Biography of Caesar" and the other was "The Art of War". According to media reports, during this war, a 90-page English translation of "The Art of War" was shipped to the desert of Saudi Arabia for combatants to read. An American reporter sent back news from the war-filled Gulf battlefield: "Although China has not stationed a single soldier here, a mysterious Chinese has come to the front line in person to control combat operations. He is Sun Tzu from more than 2,500 years ago."

In the recent Iraq War, the US commander said that his combat theory was based on "Sun Tzu's Art of War". Media reports said: During the Iraq War, Franks, who served as commander of the U.S. Central Command, was a person who was familiar with "The Art of War". Many of the tactics used by the U.S. military in this war were consistent with Sun Tzu's ideas. Among them, Sun Tzu's "Yong Jian" idea was a masterpiece in the Battle of Baghdad without fighting. An Agence France-Presse article titled "Sun Tzu Appears on the Iraqi Battlefield" said: "Nearly 2,500 years after the death of China's famous military thinker, he is profoundly affecting the way of thinking and action of British and American field commanders on the Iraqi battlefield. ". "The strategic thinking of Sun Tzu's classic work "The Art of War" runs through the overall strategic concept of conquering Baghdad."

Sun Tzu’s Art of War has also had a great influence on the combat concepts of other countries. Liddell Hart, an advocate of the "indirect route" strategy, said: Almost all of the strategic and tactical principles he discussed over more than 20 years are reflected in Sun Tzu's 13 articles. Yuma Miltinen, Chairman of the Finnish Association for Science and Technology and former Director of the Institute of Strategic Issues of the Ministry of Defense, pointed out when talking about the Western view that “new technology determines everything”: “As early as more than two thousand years ago, the great strategist Sun Tzu Listed some factors that determine the outcome of a war." He criticized some modern military strategists for ignoring the most important factor called "morale" by Sun Tzu. In the "History of the Indian Army" written by an Indian, it is written: The reason why the Indian army was able to win the third India-Pakistan War was because they successfully used Sun Tzu's strategy of avoiding the truth and attacking the fictitious.