At the end of the Spring and Autumn Period, when Sun Wu was compiling "The Art of War", he saw that the Wu army's training was boring and their morale was low, so he had the idea to apply modern football rules and create the first "Cuju Battle Formation" - using Cuju to convey tactical signals, allowing soldiers to compete in teams and practice formations. King Helu of Wu was very curious after hearing this and urged Sun Wu to form a "Cuju Army".
It happened that the Yue Kingdom was sending troops to invade, and the border was in a hurry. Sun Wu boldly proposed "a Cuju competition instead of fighting" and agreed that the winner would get three cities. The State of Yue sent tall warriors to crush them with brute force. However, Sun Wu used "Sun Tzu's Art of War" as the guideline to command his troops to attack the east and attack the west, avoiding the real and attacking the weak, which made the Vietnamese army exhausted.
At the critical moment of the game, Cuju crossed the sky and turned into a signal for the general attack. Outside the field, the Wu army took advantage of the situation to make a surprise attack. The Vietnamese army was unable to take care of its head and tail, and was completely defeated. This battle not only captured the city for the Wu Kingdom, but also made "cuju training" a routine training for the Wu army. Sun Wu also wrote the concept of "sports training" into the supplement to "The Art of War" and passed it down to future generations.
