What battles have been fought in history to win more with less? Analyze the reasons.

The battle of Guandu was in the fifth year of Jian 'an (200 years). Cao and Yuan were deadlocked in Guandu (now northeast of Zhongmou, Henan), where they launched a strategic decisive battle. Cao Cao raided Yuan Jun's granary in Wu Chao (now Fengqiu West, Henan Province), and then defeated Yuan Jun's main force. This is also one of the famous battles in the history of China.

Reasons for success or failure: Cao Cao is good at choosing good strategies, can accept the words of capable people, has both offensive and defensive skills, and has repeatedly taken Yuan Jun's grain and grass by surprise, which has played an important role in winning, and embodies Cao Cao's outstanding military strategy and command ability. On the other hand, Yuan Shao, who had internal discord, was proud of underestimating his enemy and was headstrong. He repeatedly refused the correct suggestions of his subordinates, hesitated and lost opportunities again and again. In the end, the grain and grass were burned, the roads in the rear were copied, the morale of the army was shaken, the internal division was broken, and the whole army was wiped out.

Battle of Red Cliffs was a famous battle in the last years of the Eastern Han Dynasty. In the 13th year of Jian 'an (2008), the allied forces of Sun Quan and Liu Bei defeated Cao Cao's army in Chibi of the Yangtze River (now northwest of chibi city, Hubei Province), which laid the foundation for the tripartite confrontation among the three countries.

Reasons for success or failure:

(1) Ma Chao and Han Sui are still in Kansai, which is Cao Cao's future trouble.

(2) If Cao Jun and his water army are not good enough, we should take advantage of our own shortcomings and attack the enemy's advantages.

(3) In autumn and winter, the weather is cold, horses lack forage and soldiers lack food.

(4) Cao Cao's army is dominated by northerners, and they are not used to the soil and water in the south, which leads to fatigue and illness in wartime.

The Battle of Yiling, also known as the Battle of Yiling and the Battle of Xiaoting, was a large-scale battle against Wu Dong by Emperor Liu Bei of the Shu Dynasty during the Three Kingdoms Period, and it was a famous successful example of active defense in the history of ancient wars in China. In July of the first year of Zhangwu (22 1), Liu Bei invaded Wu Dong Sun Quan on the grounds of revenging the famous Guan Yu. After Sun Quan failed to make peace, he decided to make peace with Cao Wei to avoid fighting on two fronts, and at the same time sent Lu Xun to lead the army to battle. Lu Xun stopped the attack of the Shu-Han army as early as possible, and even defeated the Shu-Han army in Yiling area in August of the second year of Zhangwu (222).

Reasons for victory and defeat: Lu Xun is good at correctly analyzing the enemy's situation, boldly withdrawing troops to lure the enemy, concentrating his forces, attacking from behind and skillfully attacking him with fire. In the end, he defeated the aggressive Shu army with 50,000 Wu Jun in one fell swoop, creating a successful example of changing from defending to attacking, reflecting his superb command art and military talent, which shows that he deserves to be an outstanding military commander. As for Liu Bei's failure, it was no accident. He "urges teachers with anger", relies on strong aggression, and commits the taboo of military strategists. In the specific operational guidance, he did not observe the geographical position, and took the troops into the rugged mountain road of 200 to 300 kilometers, which was difficult to expand. At the same time, in the face of Wu Jun's stubborn resistance, he didn't know how to change the operational deployment in time, but adopted the wrong method of camping everywhere without focus, and finally fell into passivity, which led to tragic failure.

The Battle of Feishui, which took place in 383 AD, was a decisive battle in a series of invasion and annexation campaigns launched by the Qin Dynasty against the Eastern Jin Dynasty in the south before the unification of the northern regime. The former Qin dynasty sent troops to attack the gold and fought in the water (southeast of Shouxian County, Anhui Province). In the end, the Eastern Jin Dynasty defeated more than 800,000 former Qin Jun with only 80,000 troops.

Reasons for success or failure:

There are many reasons for Fu Jian's fiasco at Feishui. Among them, there are mainly: arrogance, subjective arbitrariness, not listening to dissuasion, and rushing to war; Internal instability, disagreement, confusion, and floating people's hearts; If the front line is too long and the troops are scattered, the shed length will be short and there will be no coordination; Frustrated in the first battle, that is, losing confidence; In addition, not knowing the military situation, retreating at will and making a mess provided the enemy with an opportunity; I didn't notice the espionage activities of Zhu Xu and others, and let my opponent know my situation, thus putting myself in a passive position.

The main factors for the victory of the troops in the Eastern Jin Dynasty can be summarized as follows: staying calm in the face of danger and calmly responding to the enemy; The monarch and the minister are in harmony, and the soldiers use their lives; The Lord will be able and the command will be certain; Get the truth about the enemy and know yourself; The foot soldiers are fine, and the northern government soldiers are ten; Understand the right time, the right place and the right people, and give full play to the strengths of your own army; Break the enemy in the first battle, defeat its soldiers and boost morale; Encourage the enemy with wisdom, lure him into chaos, and then use the gap to cover up and kill him; Resolutely implement strategic pursuit and expand the results