During the Three Kingdoms period, there were many outstanding strategists. Among them, Xun You, Sima Yi, Zhuge Liang, and others were known as the "Three Kingdoms 'number one strategists". Xun You was Cao Cao's advisor. He had put forward many forward-looking suggestions to help Cao Cao achieve many victories in politics and military affairs. Sima Yi was the strategist of Shu Han. He was skilled in strategy and was good at controlling the situation. He had made great contributions to the development of Shu Han. Zhuge Liang was Liu Bei's advisor. He was known as "Mr. Wolong" for his outstanding wisdom and contribution to Liu Bei's career. The talents and contributions of these strategists could not be ignored. They had made outstanding achievements in different fields and were hailed as one of the most outstanding strategists in the Three Kingdoms period.