The battle of Changping was the earliest, largest and most thorough encirclement and suppression war in the history of our country. The two sides invested more than one million troops in this war. In the war, the Prince of Zhao, who was eager for success, fell into the trap of alienating Qin, abandoned Lian Po, a famous soldier who was a headache to Qin, enabled Zhao Kuo, who was only an armchair strategist, abandoned the defensive strategy and organized an attack on Qin. Tian Lei pretended to be defeated, lured the enemy deeper, cut off the enemy's retreat, and trapped the Zhao army in Changping, making it run out of ammunition and food. Finally, Zhao Kuo died, and 400,000 troops of Zhao were buried alive by Qin Jun. During World War I, Zhao, who was originally extremely powerful, never recovered, and the pace that no one in the Central Plains could resist greatly accelerated the process of Qin's unification of the world.

2. The battle between fat and water

One of the most famous wars in history. In 383 AD, the former Qin Dynasty, the unified regime in the north, invaded the Eastern Jin Dynasty in the south and fought a decisive battle in Feishui (now southeast of Shouxian County, Anhui Province). In the end, the Eastern Jin Dynasty defeated the former Qin Dynasty with more than 800,000 people with only 80,000 people. From then on, the former Qin Dynasty was devastated, and Fu Jian was killed by the rebels.

3. The Battle of Yang Di's Three Signs of Koguryo

Yang Di's Battle of Three Expropriations of Koguryo can be said to be a war with the largest number of people in ancient times. None, not counting Koguryo's side. Only Da Sui's side invested three times, totaling more than two million troops, and the number of civilian workers, transportation and logistics was about twice that of the troops. The length of the troops can stretch for nearly a thousand miles. The first expedition to the Sui Dynasty lost more than 340,000 troops. The war to conquer Koguryo wasted people and money, seriously damaged the national strength of the Great Sui Dynasty, and led to a large number of peasant army uprisings, which was the most important reason for the demise of the Sui Dynasty.

Four. Battle of Poyang Lake

The Battle of Poyang Lake, also known as the Poyang Lake Water War, was the largest water war in the ancient history of China and the largest water war in the world in the Middle Ages. At the end of Yuan Dynasty, Zhu Yuanzhang and Chen Youliang finally launched this strategic decisive battle in Poyang Lake waters, in which Zhu Yuanzhang invested 200,000 troops and Chen Youliang invested 650,000 troops. The final result ended in Zhu Yuanzhang's victory, which laid the foundation for his later unification of the south and his March into the Northern Expedition. At the same time, this is another famous war in the history of China after the Battle of Battle of Red Cliffs and Feishui.