Han Xin was a famous general in the Western Han Dynasty, known as the "Soldier Immortal". Together with the warrior Tu Baiqi, the god of war Li Jing, and the martial saint Yue Fei, he is known as the Four Military Saints.

Liu Bang once asked Han Xin: How many troops can I lead? ?

Han Xin replied: ?Your Majesty can lead an army of 100,000. ?

Liu Bang asked again: ?How many troops can you lead? ?

Han Xin replied: The more, the merrier. ?

Liu Bang smiled: Since the more troops you lead, the better, how could you be caught by me?

Han Xin saw that he had said something wrong and quickly flattered him: "Your Majesty, although you don't have enough troops to lead, There are many, but he has the ability to control generals. ?

Han Xin’s emotional intelligence is indeed not high, but his ability to command large armies in combat ranks among the top three among ancient famous generals.

In the Battle of Gaixia, which determined the fate of Chu and Han, Han Xin mobilized all the troops he could mobilize, reaching more than 400,000, forming an absolute advantage over Xiang Yu's 100,000 army.

In the end, Han Xin led his army to defeat the ambitious Xiang Yu, and pursued Xiang Yu's remnants, forcing Xiang Yu to commit suicide by the Wu River.

In fact, it was a very common phenomenon during the Qin, Han, Sui and Tang dynasties to mobilize hundreds of thousands or even millions of troops at every turn.

Wang Jian, a famous general of the Qin Dynasty, dispatched 600,000 troops in the battle to destroy Chu. Qin Shihuang conquered Lingnan and sent an army of 500,000. At the end of the Qin Dynasty, when Liu Bang captured Pengcheng, the capital of Western Chu, the coalition of princes he led reached 560,000. During the Sui Dynasty, Emperor Yang of the Sui Dynasty attacked Goguryeo and once dispatched 1 million people, not counting the more than 2 million civilians who served as logistical support.

However, during the Qing Dynasty, the number of troops that generals could command and mobilize dropped significantly. During the Qing Dynasty, there were almost no cases of 100,000 troops dispatched at one time, let alone hundreds of thousands of Qing troops appearing on the battlefield together to fight. Zuo Zongtang, a native of Hunan in the late Qing Dynasty, was a scholar who led troops, experienced hundreds of battles, and became one of the famous generals of all dynasties. In 1859, Zuo Zongtang was sent by Zeng Guofan to his hometown of Xiangyin to recruit troops. Zuo Zongtang was already well-known in Hunan at that time. He raised his arms and responded, and in just one month, more than 5,000 people were recruited. Zuo Zongtang named these more than 5,000 people "Chu Army".

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