Although the Battle of Jieqiao ended with Yuan Shao's victory, it was only the beginning of a long war between Yuan Shao and Gongsun Zhan, and the war between the two continued for nearly a decade.

At that time, Yuan Shao's main enemies were Gongsun Zan in the north, the Montenegrin army in the Taihang Mountain area and his younger brother Yuan Shu, and Gongsun Zan and Tao Qian, Yuan Shu, and the Montenegrin army had formed an alliance against Yuan Shao.

In the three years of Chuping (192) and the fourth year of Chuping (193), many major wars broke out in the north, but it is difficult to completely determine the order of the current data, among which Yuan Shaojun and Gongsun Zhan's army fought against the Battle of Chuping, the Battle of Longcuo, and the Battle of Gu'an.

The Battle of Chuping was a large-scale confrontation between the two alliances, which was caused by the failure and death of Yuan Shu's general Sun Jian in his crusade against Yuan Shao's ally Jingzhou Mu Liu Biao.

In order to rush to the aid of Yuan Shu, Gongsun Zhan sent Liu Bei to be stationed in Gaotang and stationed in the plains, and at the same time united with Tao Qian to send troops to form a great deterrent to Yuan Shao. However, because the armies of Gongsun Zan and Tao Qian were sent earlier than Yuan Shu, they gave Yuan Shao and Cao Cao the opportunity to break through one by one, and Liu Bei, Shan Jing, and Tao Qian were all defeated.

By the time Yuan Shu attacked Yanzhou, the reinforcements of his allies had already been defeated, although later the black thieves and the Xiongnu Yu Fuluo and others also came to help, but they were still defeated by Yuan Shao and Cao Cao's combined forces, and Yuan Shu was driven to Yangzhou by Cao Cao after the defeat in Kuangting.

The Battle of Chuping ended with the defeat of Gongsun Zhan, Tao Qian, and Yuan Shu, the victory of the combined forces of Yuan Shao and Cao Cao, and the recovery of Nanyang by Liu Biao.

The battle of Longcuo is because Gongsun Chan was unwilling to lose after losing the battle of the boundary bridge, and launched an attack on Yuan Shao again, the existing information of this battle is not much recorded, after Gongsun Chan sent troops to Longcuo, he was defeated by Yuan Shao again, and the time point of this battle may be after the battle of Gu'an.

The Battle of Gu'an was the first counterattack of the Yuan Shao group against Gongsun Zhan. After Gongsun Chan retreated to the north, Yuan Shao sent his troops to lead tens of thousands of troops to besiege Gu'an, but in order to capture it, Cui Juye retreated south, and Gongsun Chan took the opportunity to attack and regain the initiative.

At that time, Gongsun Zhan led 30,000 infantry cavalry to pursue Jumashui, defeated Yuan's army, killed seven or eight thousand people under Yuan Shao's command, and Yuan's army scattered and fled. Gongsun Zhan took advantage of the victory to go south, invaded Qingzhou, and defeated many counties in Qingzhou, until he reached the plain, and sent his Qingzhou Thorn Shi Tian to occupy the Qi land, and later Liu Bei, who had meritorious service in this battle, was also promoted to the plain minister.

In order to recapture Qingzhou, Yuan Shao sent tens of thousands of troops to fight with Tian for two years, and the two sides fought in Qingzhou, and this was even worse for Qingzhou, which had just experienced the Yellow Turban Rebellion, and the once rich Qingzhou ceased to exist after the baptism of war, and the long war consumed the grain and grass of Qingzhou. At that time, Yuan Shaojun and Gongsun Zhanjun ate all the food, and even robbed the people alternately, in order to survive, even the grass in the fields was gone, and the soldiers on both sides were very tired.

At this time, the Son of Heaven sent his servant Zhao Qi to mediate the Kwantung troops and asked them to withdraw their troops. Gongsun Zhan also took this opportunity to write to Yuan Shao and said: "Zhao Taifu has the virtue of the Duke of Zhou and the Duke of Shao, and he has come quickly on a mission to spread the grace of the imperial court, and wants us to live in harmony, as bright as the sun through the dark clouds, what could be more gratifying?" In the past, Jia Fu and Kou Sui fought to endanger each other, met Shizu to mediate disputes, and finally went out in the same car, and after the rift and grudge were eliminated, the people at that time praised them. I considered myself to be a remote and despicable person, and to be able to make friends with the general, which was certainly humiliating to the general, but it was my wish. Yuan Shao then led his army back south.

After experiencing many battles such as the Battle of Jieqiao, the Battle of Chuping, the Battle of Longcuo, and the Battle of Gu'an, Yuan Shao's situation in the north has obviously begun to improve, and Gongsun Zhan, as the most important enemy of his four northern states, has gradually become powerless to fight against Yuan Shao.

Before the Battle of Jieqiao, Gongsun Chan once controlled the initiative and occupied a military advantage, plus the Yellow Turban Army that had just defeated Qingzhou and Xuzhou, and was famous all over the world; And Yuan Shao had just captured Han Fu's Jizhou, which was not justified, and his control over Jizhou was still relatively weak.

Gongsun Zhan's cousin Gongsun Yue died at the hands of Yuan Shao's subordinates again, giving Gongsun Chan the name of sending troops, it can be said that this is a great opportunity for Gongsun Chan to eliminate Yuan Shao, and Gongsun Chan did not let go of this opportunity.

However, Gongsun Chan ultimately failed to rely on his own military strength to eliminate Yuan Shao, but instead defeated Yuan Shao's general Lu Yi at Jieqiao, after which the strength of Gongsun Chan and Yuan Shao began to reverse, and Gongsun Chan lost the most important military advantage.

The Battle of Chuping was a confrontation between Yuan Shao, Cao Cao, Liu Biao and Gongsun Zhan, Yuan Shu, and Tao Qian, affecting Youzhou, Qingzhou, Jizhou, Xuzhou, Jingzhou, and Yanzhou.

Originally, in terms of strength, the three princes of Yuan Shu, Gongsun Zhan, and Tao Qian were stronger as a whole, but they were too far apart, which led to improper cooperation, giving Yuan Shao and Cao Cao the opportunity to break through one by one, and finally lost the victory.

After this battle, Yuan Shao's alliance army drove Yuan Shu to Yangzhou, began to gain the upper hand in the confrontation between the two alliances, and gradually strengthened, while the alliance of Yuan Shu, Gongsun Zhan, and Tao Qian was frequent, and finally collapsed and died out one after another.

The Battle of Longcuo was Gongsun Zhan's second attempt unwillingly, but unfortunately the result remained unchanged, which marked that the Gongsun Chan group was no longer able to eliminate Yuan Shao, who was based in Jizhou.

The Battle of Gu'an was the counterattack of Yuan Shao's group against Gongsun Zhan, and it was also the beginning of Yuan Shao's capture of Youzhou, but this battle ended with the defeat of Yuan Shao's army, and the army was still pursued by Gongsun Zan in Jumashui and suffered heavy losses, which showed that it was not realistic for Yuan Shao to capture Youzhou at that time, and Gongsun Zhan's army still had the power of self-preservation.

After many wars, Yuan Shao and Gongsun Chan were in a stalemate in Qingzhou, and the time came to the fourth year of Chuping (193), the imperial court sent people to reconcile the Kwantung princes, and at the same time, Youzhou also had a major change, Gongsun Chan was powerless to fight against Yuan Shao, so he took this opportunity to get off the donkey down the slope and ask Yuan Shao for peace, Yuan Shao agreed to Gongsun Chan, and the two sides ceased war.

But this does not mean that the north is at peace, whether it is Youzhou or Jizhou, at this moment Gongsun Chan and Yuan Shao are facing a huge crisis.