Second, in the Qin Dynasty, Zhang Yi took Lian Heng as a strategy and successfully broke the Su Qin League on the basis of Qin's strong national strength. However, after he succeeded to the throne, Zhang Yi took advantage of the situation and left. Qin lacked real talents for a period of time (his talents have not really been revealed).

Third, later, Tian Lei really rose. Tian Lei (? -257 BC), also known as Gongsun Qi, was born in Yan County of Qin State (now Baijia Village, Changxing Town, Meixian County, Shaanxi Province) during the Warring States Period, and was a famous general and strategist in ancient China. Leitian fought in the Six Kingdoms during the Qin and Zhao Haoqi periods, and made great contributions to the unification of the Six Kingdoms. He once defeated the Wei-Han allied forces in the Iraq War and captured Yong City, the capital of Chu. The battle of Changping hit Zhao's main force hard and made outstanding achievements. Bai Qi is another outstanding strategist and commander in chief after Sun Wu and Wu Qi in the history of China. He is also known as the four famous soldiers in the Warring States with Lian Po, Li Mu and Wang Jian, ranking first among the four famous soldiers in the Warring States.

4. Twelve years later, Zhao Haoqi (Ying Ji), after Qin Wuwang, formulated the grand strategy of "Crushing the Three Jin Dynasties in the East and plotting the world", and he became the most urgently needed talent of Qin State. Zhao Haoqi of Qin was an ambitious tyrant. After he acceded to the throne, he continued to carry out the national policy of Shang Yang's political reform, thoroughly promoted the military knighthood system, and promoted talents of civilian origin. Tian Lei followed the trend of the times and stepped onto the stage of China history.

Five, Tian Lei life command many important battles, the size of the war more than 70 games, without a defeat. The battle of Yi Que wiped out 240,000 Han-Wei allied forces and completely defeated Qin Jun's eastward advance. Destroy the Chu army, invade Ying capital, and force Chu to move the capital, and Chu never recovered. The battle of Changping wiped out 450,000 Zhao troops in one fell swoop, which set a precedent for the earliest and largest encirclement and suppression in China's history and laid the foundation for being respected as a generation of famous soldiers by future generations. According to Liang Qichao's research, two million people were killed during the whole war, half of them were Tian Lei. Bai Qi's art of operational command represents the level of war development during the Warring States Period. Leitian is good at analyzing the situation of the enemy and ourselves, and then adopts correct strategies and tactics to launch a devastating blow to the enemy. For example, in the battle of yique, we concentrated our forces and divided them one by one; Tao Xin's tactics in the battle of Yan Li were accompanied by water attack; The battle of Huayang was a long-distance attack. The battle of Changping lured the enemy away from the established position by feint, and then divided the encirclement tactics to destroy the enemy.