In order to get rid of the "shame of Jingkang", it led to the danger of national subjugation. 1 127 years, the "Jingkang Revolution" broke out, Song Huizong and Qinzong were exiled, countless people suffered, and the Northern Song Dynasty perished. After the establishment of the Southern Song regime, Song Gaozong Zhao Gou, Song Xiaozong Zhao Qi and Song Ningzong Zhao Kuo all vowed to explore the north.

Yue Fei, Han Shizhong, Wu Jun and other anti-gold stars went into battle one after another. "Jingkang is a shame, but it is still snow. When do courtiers hate their guts! Driving a long car, stepping on Helan Mountain ",the desire of the military and civilians in the Southern Song Dynasty to recover their homeland will not change!

However, due to various reasons, these northern expeditions ended in failure, and the peace treaties signed after the war were often even more humiliating. This situation finally changed after Song Lizong Zhao Tan.

Song Lizong Zhao Yun was the fifth emperor in the Southern Song Dynasty. He is the ninth grandson of Zhao Dezhao, the son of Song Taizu Zhao Kuangyin. Because of his long tradition, his family line has become the home of ordinary people. Because the last emperor did not succeed to the throne, the reigning emperor was plundered and proclaimed himself emperor.

From humble right-hand man to the statue of the Ninth Five-Year Plan, Zhao Yun deeply thanked Queen Yang and Shi, and naturally he was obedient. In the first ten years when he became emperor, he was basically a puppet, and he didn't listen to state affairs at all, which was decided by Yang Guifei and Shi. It was not until the death of the two that Zhao Tan really came to power.

In the early days of his administration, Zhao Yun was ambitious. He denounced the Stone Party, appointed virtuous ministers, abolished personnel management, rectified finance, and introduced a series of reform measures, which played a certain role in stabilizing the political situation and developing the social economy, but did not solve the deep-seated contradictions.

At this time, great changes have taken place in the world, with the rise of Mongolia and the decline of Jin State and Xixia. How to properly handle the relationship with neighboring countries has become a compulsory topic for Zhao Yun and his ministers, and it has also become the focus of their debate.

Some people are extremely hostile to Xu Jin and advocate the joint destruction of Xu Jin and the recovery of the Central Plains. Some people are relatively reasonable. At that time, Song and Jin formed a "maritime alliance" to destroy Liao. In the end, Dasong was harmed by Jin people, and it was impossible to do such a thing as "the lips are dead and the teeth are cold". Take Jin Guo as a barrier to form a balance of power among the three countries.

Zhaoyun wavered between the two opinions, with neither money to resist nor money to destroy it, and so it dragged on for several years. But the Mongols were too strong for the Jin army to resist, and the defeat was a foregone conclusion.

In this case, Zhao Yun ignored the demands and persuasion of the Jin people, resolutely "hit people when they are down" and implemented the strategy of uniting Mongolia to destroy gold.

The Southern Song Dynasty reached an agreement with Mongolia, and the Southern Song army went north to cut gold. Mongolia promised to return Henan (south of the Yellow River) to the Song Dynasty after the destruction of gold, but the two sides did not sign a written agreement, only verbally agreed, leaving a huge future trouble. /kloc-in the first month of 0/234, under the attack of the Mongolian and Song allied forces, Jin Jun was defeated, and Jin Aizong hanged himself, and his body was divided into two parts. Wan Yan Cheng Lin, the last emperor, was killed by the mutinous soldiers, and the State of Jin perished.

In March of the same year, Zhao Yunpa sent people to Henan to pay a visit to the Imperial Tomb of the Northern Song Dynasty and to carry out repairs. Soon, the remains of Jin Aizong were enshrined in the ancestral hall to comfort the spirits of Emperor Hui and Qin. At this point, "the shame of Jingkang" has been washed away in some form.

However, Zhao Yun and the soldiers and civilians in the Southern Song Dynasty did not last long, and "the lips are dead and the teeth are cold" soon happened. After the death of the state of Jin, the Mongolian army withdrew northward, leaving the land of Henan empty. According to the oral agreement of Song and Jin Dynasties that "the land of Henan will be returned to Song Dynasty after destroying the gold", Zhao Yun officially sent a letter to send troops to Henan, and successively recovered Guide House and Kaifeng in Nanjing. However, when he entered Luoyang, he was ambushed by the Mongolian army and suffered heavy losses. He retreated awkwardly.

Song Jun, who stayed in Tokyo and other areas, followed suit, and Zhao Yun's desire to return to China fell through. Obviously, the Mongolian army played a rogue and denied the agreement of "returning the land of Henan" (there was no written agreement), claiming that the Southern Song army took the initiative to provoke, and the Mongolian army had to fight back.

This incident is known as "crossing the border into Romania". Due to the sudden attack of Mongolian army, tens of thousands of elite soldiers and a lot of materials were lost in the Southern Song Dynasty, and the national strength was seriously weakened. What's more, this incident gave Mongolia an excuse to attack the Southern Song Dynasty. Since then, the Song-Mongolian War broke out in an all-round way, and the Southern Song regime was in jeopardy.