In the fifth year of Jian 'an (200 years), a decisive battle broke out between Cao Cao and Yuan Shao in Guandu (now northeast of Zhongmou, Henan). At that time, Yuan Shao was the biggest separatist force in the north, followed by Cao Cao, and a decisive battle between the two forces was inevitable. Yuan Shao has hundreds of thousands of troops, covering a large area, but he is unpopular.

Cao Cao Can only used 30,000 to 40,000 troops against Yuan Shao, but he was more supported by the people. Moreover, Xian Di is in his hand, and he can "hold the emperor to make the princes". Although Cao Cao won some victories in Baima and Yanjin, the situation that the enemy was strong and we were weak did not change. He decided to lure the enemy into depth, take the initiative to retreat to Guandu, dig deep trenches and hold his ground for a favorable opportunity.

After several months of stalemate between the two sides in Guandu, Cao Cao sent Indiana Jones to burn the nest, burned up Yuan Jun's grain and supplies, and took the opportunity to attack Yuan Jun with all his might, destroying Yuan Jun by 70,000. Yuan Shao and his son Yuan Tan led Qin Bing to ride more than 800 yuan to escape from the Yellow River. In this campaign, Cao Cao defeated many with less, annihilated Yuan Shao's main force, and laid the foundation for unifying the North.

2. Battle of Red Cliffs

After Battle of Red Cliffs, Liu Bei won the four counties of Wuling, Changsha, Guiyang and Lingling, and worked as a shepherd in Jingzhou the following year, which laid the foundation for development and entry into Yizhou. Cao Cao learned the lesson of failure, promoted the water army, controlled the Jianghuai area, and confronted Sun Quan. In order to resist Cao, Sun Quan continued to form an alliance with Liu Bei and let him develop in Jingzhou. The tripartite confrontation between the three countries has gradually taken shape.

Battle of Red Cliffs and Cao Cao were conceited, underestimating their enemies, making mistakes in command, and the water army was not strong, which eventually led to defeat. Sun Quan and Liu Bei calmly analyzed the situation in the face of strong enemies, formed an alliance to resist the Japanese war, enhanced the strength of water warfare, and skillfully attacked with fire, thus creating a famous war example in China's military history.

3. Surabaya Campaign

In the Battle of Feishui, more than 700,000 people in the former Qin Jun were completely annihilated and annihilated. Only the 30,000 troops of the Mu Rongchui Department of Xianbei were still intact. Fu Jian's hope of reunifying the north and the south was completely dashed. Not only that, the temporary unification of the north also collapsed and split into more local ethnic regimes again.

Mu Rongchui of Xianbei nationality and Yao Chang of Qiang nationality rose again and established new countries. Fu Jian himself was captured and killed by Yao Chang two years later, and the former Qin Dynasty perished. Although the winner of this war, the Eastern Jin Dynasty, failed to restore the sovereignty of China, it effectively curbed the intrusion of northern minorities on the South and created conditions for the social and economic recovery and development in the south of the Yangtze River.

The battle of Feishui has also become a famous example of how to win more with less, which has been recorded in military history and has had a long-term impact on the war view and decisive battle thought of later strategists.

4. Battle of Pengcheng

The battle of Pengcheng broke out in the struggle between Chu and Han. Liu Bang took Xiang Yu to attack Qi, and joined other kings to attack Peng Cheng, Xiang Yu's stronghold. Liu Bang has more than 600,000 troops.

Xiang Yu heard about it and only took 30 thousand cavalry to fight Liu Bang. Liu Bang never dreamed that Xiang Yu would come so soon. When Xiang Yu began to attack, Liu Bang and others were still enjoying themselves. When he heard that Xiang Yu began to attack, because there was no unified command, Liu Bang and others' troops were killed by Xiang Yu, and finally Xiang Yu won, creating a precedent for winning more with less.

5. Battle of Kunyang

It broke out in the first year of the restart (23 years). It is a strategic decisive battle for the outlaw rebels to overthrow Wang Mang's regime, and it is also a typical war case in the history of our country.

In this decisive battle, the peasant uprising army led by Liu Xiu and others wiped out the main force of Wang Mang's army with fearless courage and flexible tactics, and sounded the death knell of the complete collapse of Xin Mang Dynasty. It has certain progressive significance in history.

Liu Xiu also selected 3,000 death squads to attack the backbone of the new army from the west of the city. Wang Yi and Wang Xun looked down on Liu Xiu and thought it was easy to beat him. Therefore, they only led more than 10,000 people to patrol positions. In order to prevent chaos in each battalion, they ordered each battalion to strictly control its own troops and not to send troops without authorization.

Wang Xun of Yihe Wang fought, but they were no match for Liu's death squads. The new army was quickly defeated by Liu Xiujun, and the soldiers fled. At this point, the rest of the new army did not dare to make a move, so no one actively supported Wang Yi and Wang Xunjun's operations. Liu Xiu led the Han army, bravely attacked, defeated Wang Yi and Wang Xun's army in one fell swoop, and killed Wang Xun.

After the backbone of Wang Yi was washed away and Wang Xun was beheaded, all the units of the new army lost their command center and immediately became a mess. At this point, the Han army in Kunyang saw that the death squads led by Liu Xiu and others won a great victory, and also shouted ShaSheng, rushed out of the gate, attacked the new army inside and outside, and ShaSheng was deafening. Xin Mang's 420,000 troops soon fell apart.

Xin Mang Army, a poor man who was forcibly drafted into the army, has long hated the follwed regime. After being attacked by the rebels inside and outside, they naturally abandoned the array and fled. The fleeing soldiers pushed and shoved each other. "The walkers practiced with each other and lay for more than a hundred miles."

It happened that there was a strong wind and thunderstorm, the roof tiles were blown away by the strong wind, the rain poured down and the river surged. The tigers and leopards of the Wang Yijun team are trembling with fear. More than 10,000 new soldiers drowned in the water, and Meng Chuan was almost cut off by the body. Wang Yi, Yan You, Chen Mao and others set off from Chang 'an with only a few elite riders and fled across the river with dead bodies.

The Han army seized all the military supplies of the new army, and all kinds of things piled up like mountains, which have not been moved for more than a month. Wang Yi led thousands of down archers to Luoyang. When follwed learned the news of Kunyang's fiasco, he was shocked, and the whole Xin Mang court was also frightened.

Baidu Encyclopedia-Battle of Guandu

Baidu Encyclopedia-Battle of Red Cliffs

Baidu Encyclopedia-Battle of Feishui

Baidu Encyclopedia-Pengcheng Battle

Baidu Encyclopedia-Battle of Kunyang