Why does it say that On the Passage of Qin says that Shang Ying fought the princes horizontally a

No, it was Su Qin who brought it up.

In 356 B.C., Shang Ying assisted Qin in changing the law. The national strength of the Qin State reached an unprecedented strength. After the death of Xiaogong, King Qin Hui succeeded to the throne, and in 338 BC, Che split Shang Marting.

Then, Su Qin went to Qin to say that King Hui was horizontal. King Hui had just cracked the Shang Dynasty and was extremely disgusted with debaters, so Su Qin's lobbying this time was unsuccessful. Then, Su Qin said that the six countries would unite to resist Qin.

So I think that Lian Heng is policy was proposed by Su Qin!

Knowledge Zhang Yi can better explain how to do it.

Shang Ying Chunqin and the father of the reform, the national strength of the Qin State became very strong, dominating the world, eliminating opponents, and expanding itself, but in the later battle of the Qin Dynasty, because the system was not very advanced, the military strength did not have the advantage of the first liquid, and it failed on the battlefield.

After the Shang Dynasty reformed the law, Qin's national strength was very good, and its economic development was also good, and it was particularly powerful; The result of the battle of the joint column attack on Qin was that the old man of Zhuliang failed, which was not good militarily, and he lost his rank on the battlefield of Jianxun.

The military strength of the Qin Wuwan State was particularly strong, and it can be said that there were more victories and fewer defeats in the process of fighting Huaicha Key, which laid the foundation for the later great unification; In the battle of the joint attack on Qin, the Qin State was relatively weak, and was even forced to cede land.

The strength of the Qin State and the evil intentions of the Six Kingdoms, the Qin State was able to defeat the Six Kingdoms, firstly because it had a strong army, and secondly, because the Six Nations did not sincerely join forces to resist Qin, but for their own interests.

First, because the changes made the Qin State unprecedentedly strong, and the treasury was sufficient, which could support long-term consumption. Second, all countries are inherently distant, and they are all wary of each other in the process of merging and conniving, and there is no real sincerity in cooperation.

Because at that time, the comprehensive strength of Qi was much stronger than that of Qin, and even if Qin changed the law, it was not necessarily the opponent of the first power.

After the Shang Dynasty reformed the law, the society was still in turmoil, all aspects had not yet stabilized, and the domestic situation was turbulent, so the first battle between Qin and Qi would be lost.

In local wars, don't talk about comprehensive national strength, laymen have to act as insiders to lead insiders, like the confrontation between Qin and Zhao before the Battle of Changping, and the war between Qin and Chu, that is called fighting for comprehensive national strength. Qin Guanze's defeat to Qi was a very simple reason for the defeat of the war factor, the long journey and the enemy on the back The commander of the Qi army, Kuang Zhang, was stronger than Hua ......, the son of the Qin armyIn the end, there's no need to always pull Shang Jun out of the law!

Because at that time, Wei and South Korea were playing moths behind the Qin army in Shangqiu, and the Qin army was in a dilemma, and the Qi State took the opportunity to attack the Qin army, and the Qin army was defeated under the disturbance of spies

The strength of the Qi State is too strong, and before the five countries jointly attacked Qi, even if the Qin State experienced the Shang Dynasty Reform, its strength was still far inferior to that of the Qi State.

First of all, your statement is wrong, the vertical strategy is not the Six Kingdoms, and even the horizontal strategy does not refer only to the Qin State.

The beginning of Lianhenghe's vertical strategy was the Battle of Maling, in which Wei was severely weakened and lost its status as the first power, and the two great powers of Qi and Qin faced each other.

From a geographical point of view, those weak countries are dominated by the Three Jin Dynasty, connecting Chu in the south and Yan in the north, with this as the vertical, and Qi in the east or Qin in the west as the horizontal. The combination of vertical and vertical can also be aligned against Qin, that is, the combination of the weak to attack the strong to prevent the strong country from annexing, and the continuous horizontal is to attack the weak and strong to force the weak country to carry out the annexation war. So in fact, the whole process of combining vertical and horizontal is not as simple as you imagine, the six countries attack Qin or Qin even break the enemy, and the relationship inside is complicated, which is like the current international diplomacy, there are many contradictions between countries, between the three Jins, the relationship between Chu and Qin, the union of Chu and Qi to the rupture, and the hatred of Yan and Qi.

In fact, when the Yan State broke Qi and the Qin State became an absolute superpower, the relationship at this time was a little clearer, that is, the six countries joined forces to protect themselves. The success of the Qin State is mainly due to its strong foundation of national strength since the Shang Dynasty reform, coupled with successful diplomatic strategy, luck and other aspects.