In the early Warring States period, Qin was located in the west, and its strength was weak, which was despised by the six eastern countries. On the border, he was arbitrarily bullied by the powerful Wei in the early Warring States period. After Qin Xiaogong ascended the throne, Shang Yang was ordered to carry out political reform and made outstanding achievements, becoming the most powerful country. But at this time, although Qin is strong, Qi, Chu, Zhao and other countries are not weak, and Qin does not have the strength of one enemy and six, so it can only adopt military advisers? Even horizontal operation? Outward attack, one by one. After that, successive monarchs of Qin moved eastward to weaken the six countries, which laid a solid foundation for Qin Shihuang to unify the six countries.
By the end of the Warring States period, the strength of Qin was far ahead, followed by Zhao, Chu and Qi, while South Korea and Wei were very weak and vulnerable to the tigers and wolves of Qin. Subsequently, after the battle of Changping in Qin and Zhao, Zhao was defeated, and the six countries no longer had the strength to resist Qin. Did the State of Qin attack them from far and near and smash them one by one? Even horizontal operation? , successively destroyed Korea, Zhao, Wei, Chu and Yan, and finally destroyed Qi and unified the six countries.
It can be seen that Qin State was practiced? Even horizontal operation? The six countries were eliminated one by one, mainly because of their national strength, that is, although Qin was strong, the other six countries were equally strong, so Qin could not defeat six with one enemy, but could only break them one by one; When Qin attacked six countries, due to its geographical location, it was necessary to make friends from far away, attack nearby and destroy them one by one.
Su Qin Zhang Yi and others are not from the same generation, but there is a generation gap between Zhang Yi and Su Qin. When Zhang Yi stepped off the stage of history, Su Qin Gang appeared, and when Su Qin became popular, Zhang Yi had been dead for a long time. The alliance was not put forward by Su Qin, but existed before Su Qin. It was just broken by Zhang Yi. After the death of Zhang Yi, Qin became stronger. In this historical background, Su Qin put forward Lian Heng.