As we all know, Yue Fei was one of the few famous anti-Jin generals in the Southern Song Dynasty at that time, who fought countless battles, fought against the Jin people, and was defeated and retreated, and such an important general was killed by the emperor he was loyal to, which was simply a great opportunity for the Jin people, but why did the Jin State not take the opportunity to go south after Emperor Gaozong of Song killed Yue Fei? In fact, Jin Guo did not want to, it was really impossible to go south.
First of all, the Jin Army at that time was already the end of the crossbow. In Shaoxing's ten-year war against the Song Dynasty, Jin Wushu was bound to win, and the Jin army was divided into two routes, one of which attacked from the west road after Finishing Yan Sa's drinking in an attempt to open the passage into Shu, and the other route led by Jin Wushu himself to attack from Jianghuai. The number of people led by the Light Golden Vulture was at least 150,000. However, this war caused the Golden Vulture to suffer a heavy blow. The famous "Iron Floating Massacre" of the Jin Army was almost completely scrapped by the Yue Family Army. Another army that has always won the battle, the "kidnapped horse", was also beaten as a "kidnapped horse". In the defense of Shunchang, Yue Fei, Han Shizhong, Liu Zheng, Yang Zaixing, and others created one miracle after another of winning more with less, and the Jin army lost tens of thousands of horses. In the Battle of Zhuxian Town, 100,000 jin wushu horses were beaten and scattered, and if it were not for the traitors, Jin Wushu would be ready to abandon the entire area south of the Yellow River.
Second, the military strength of the Southern Song Dynasty was enough to counter the Jin Dynasty. Although there was no Yue Fei, in fact, there were many outstanding generals in that era. For example, Liu Zheng, his credit is not under Yue Fei. There was also Yang Zaixing, who sacrificed on the battlefield, even including Zhang Jun, Han Shizhong, etc., and the western front and the "Wu Family Army" led by Wu Xuan, all of which made great contributions to that famous war. The above generals have all "taught lessons" to Jin Wushu at different stages. Moreover, in the ten years of anti-Jin warfare in Shaoxing, the people of the Central Plains who had long lived under the puppet Qi regime also spontaneously armed themselves, actively cooperated with the Song army, and chased and intercepted the Jin army, which is the reason why Jin Wushu stayed in Kaifeng after the Shaoxing Peace Agreement was reached, and the Central Plains needed to be re-governed, otherwise the people's hearts would drown the Jin people.
Another point is that the internal political environment of jinguo at that time was not conducive to war. Because of the internal problems in the Jin Kingdom, Jin Wushu originally relied on the support of Jin Xizong to eliminate the main and factional forces by strong means. After that, Jin Wushu vigorously cultivated the emerging Hanguan clique and purged conservative forces. However, the unexpected and early death of the crown prince Yan Ji'an made the dispute over the imperial heirs increasingly fierce. In the competition between several political factions, Jin Xizong suddenly became discouraged and lazy, fascinated by the anesthesia of alcohol, and he feasted day and night, his expression changed greatly, and he was accustomed to killing people after drinking. By this time, the chaotic internal affairs of the Jin Dynasty had become impossible to form a joint force and prepare for the annihilation of the Song Dynasty. The lack of the emperor's full support, coupled with the rivalry between political forces, had left Jin Wushu in a terrible mess. He was physically and mentally exhausted at an advanced age, and in the eighth year of the imperial unification, that is, the seventh year after the Shaoxing Peace Agreement was concluded, Jin Wushu died of illness. The Jin State, which lacked outstanding generals, was even less likely to attack the Southern Song Dynasty.
Therefore, if the Southern Song Dynasty at that time was not in power by the traitors and villains, the emperor was not so faint and incompetent, and it was not impossible to defeat the Jin Dynasty. It's a pity that history has no ifs.