In the early Warring States period, Qin was not strong. However, relying on Shang Yang's political reform for more than 20 years, Qin suddenly became the western hegemon. Later, after "six worries", the strength of the six eastern countries was weakened one after another, and finally the great cause of reunification was completed in the hands of Qin Shihuang. However, the state of Qin is not indestructible. When Qin was weak, Shang Yang put forward two strategies to destroy relatives. When Qin Guoqiang was weak, King Wuling of Zhao also put forward a surprise attack to destroy relatives. However, the people of the six countries did not understand the essence of these two strategies, so that they fell under the iron horse of Qin Shihuang. Let's take a closer look at what these three strategies are. In 38 1 year BC, Qin Xiangong defeated the land of Hexi. In this war, Wei Yang came to the battlefield in Hexi. At that time, he discovered a big secret from the belly of Qin Bing, that is, "Qin people eat grass, and Qin people are terrible." To put it simply, the state of Qin has run out of grain (its national strength is weak). In this regard, Wei Yang suggested to Wang Wei that there is only one way to defeat the state of Qin, that is, "autumn war and spring peace", which means that although the state of Qin is weak, its military style is very popular, and fighting with it will inevitably lead to the decline of Wei. Instead of this, it is better to go to war in the spring when the agriculture is busy. At this time, Qin was bound to destroy cultivated land in World War I.. When the war stops in the autumn harvest season, Qin will have no food to harvest, so a few years later, Qin will be defeated without a fight. However, Wei's temples have always attached importance to fertility, and Wei Yang is a "middle-aged son" under his uncle's family. How can his ideas be reused? Wei missed such a good opportunity to kill her relatives. Although there was an economic crisis in Qin after the Hexi War, and the six eastern countries were divided up into Qin, Xiao sent a list of recruiting talents to the six countries, and Wei Yang also came to Qin. Shang Yang put forward his own plan to destroy Qin in a debate of six countries. He said that the people of Qin were very militaristic, and even if there were a million allied forces in six countries to win Qin, they would have to pay a painful price. It is better to take Hangu Pass as the boundary to stop Qin from moving eastward. Fur, war horses and other important economic materials of Qin are not allowed to leave the country, and the grain and iron of the six countries will never go west to Hangu Pass. Within a few years, the people's livelihood of Qin was depressed and its military strength was backward. At this time, Qin either retreated to the land of Longxi to preserve the blood of the clan, or was trapped in Hangu Pass by the six countries. Generally speaking, under such an "open plan", the Qin Dynasty was defeated without a fight. However, after the "Three Visits" incident, Wei Yang became a great creation of Qin State. Not only was the strategy of eliminating Qin put on hold, but Qin State also completed the phoenix nirvana in the crisis. Surprise attack on Xianyang capital In 302 BC, Zhao Wuling, the monarch of the State of Zhao, reformed the army and became the most powerful country among the seven countries. Later, he launched a war of national subjugation against the then "Zhongshan State". Since then, the territory of Zhao and Qin has been bordered by the northern grassland. At that time, although Qi was the biggest overlord at that time, Yan often invaded the border of Zhao, but in the eyes of King Wuling of Zhao, "mysterious Qin" was the biggest threat, so King Wuling of Zhao wanted to get rid of Qin. In order to achieve this goal, according to historical records, King Wuling of Zhao went to the State of Qin alone to explore the situation, and finally came to the conclusion that Hangu Pass was difficult to attack, while the State of Qin had no danger to defend on the grassland in the north. Therefore, Zhao's powerful cavalry seized the opportunity and raided Xianyang City, which would soon be captured. However, at that time, King Wuling of Zhao made the most wrong decision. He gave up the country's military and political power, and the bold idea of surprise attack on Xianyang fell through. If he really took advantage of Qin's foreign war to enter Xianyang from the northern grassland, then the wheel of history is likely to be rewritten. The above three strategies are all based on the strengths of the six countries to attack the weakness of Qin, which can be said to be very practical and successful. However, none of the people of the six countries later understood this truth, and only the king of Qin could sweep the six countries. "With the development of time, King Hui of Qin and King Xiang of Qin successively defeated Wei, Chu, Han, Zhao and Qi. During the period, Qin's economy was promoted by more than one level, so that no country could compete with Qin in the late Warring States period, and won the political power by virtue of natural hazards, geographical location and human relations, and finally completed the great unification and became an emperor in history. Shang Yang put forward two strategies to destroy Qin, Zhao Wuling Wang put forward one, and the six countries used one of them to destroy Qin. What are your different views on the three strategies of eliminating Qin? Those who have their own opinions can leave a message at the bottom of the article.