History is like a gushing river, exhausting many heroes, leaving only the last king.
Gongsun Zhan had a tianhu start, came from a noble family, looked tall and handsome, was valued by Zhuo Jun's taishou, recruited as a son-in-law, and entered the official field smoothly from then on. Gongsun Zhan's education was also very good, he worshiped Lu Zhi, who was the taishou of Lujiang at that time, and Lu Zhi's strength was not ordinary, and he suppressed the southern barbarian rebellion around the Lujiang River and had rich combat experience. Gongsun Zhan studied at him and learned a lot of experience in actual combat against the enemy and leading troops to fight.

Once, gongsun zhan went out with dozens of cavalry to patrol the pass, and when he saw hundreds of xianbei cavalrymen, Gongsun Zhan retreated to the empty pavilion and said to the accompanying team: "If you do not take the initiative to attack, you will be killed." So he led the team with a spear in his hand and rushed into the Xianbei team, killing and wounding dozens of people, although he survived death, he also lost more than half of them. The Xianbei people took this as a warning, and no longer dared to easily cross the barrier. Gongsun Zhan was promoted to Zhuo County. In this way, Gongsun Zhan formed a deterrent to the northern nomads, and he also established his signature White Horse Yicong, gongsun Zhan advocated the use of force to suppress the nomads, which was completely contrary to the later Huairou policy of Liu Yu, the pastor of Youzhou.
Gongsun Zhan studied at Lu Zhi, and also met a confidant, that is, Liu Bei, a fallen Han clan relative, both of whom were young heroes, with lofty ideals and ambitions, the fire of ambition burned in the hearts of the two teenagers, Gongsun Zhan and Liu Bei worshipped, Gongsun Zhan became Liu Bei's big brother, and later Gongsun Zhan became Zhuo County's county commander, Liu Bei was his personal armed minister, recruiting soldiers and horses for him, which laid a solid foundation for the later Gongsun Zhan to fight against the Yellow Turban Army. Liu Bei has also been following this elder brother, the eldest brother eats meat and drinks soup, he is also very happy, and later achieved the Plain Order, and also participated in the Eighteenth Road Princes' Gathering with Gongsun Zhan.

Why didn't Liu Bei come to Gongsun Zhan's rescue when he was besieged by Yuan Shao? The reason was that Gongsun Zhan did something, and Liu Bei decisively turned away.
In order to achieve his hegemonic position in the north, Gongsun Zhan constantly annexed large and small princes, which was a justifiable thing, but Gongsun Zhan did one thing wrong, which directly led to the complete loss of Gongsun Zhan's heart, and almost no talent was available later. Liu Yu was a relative of the Han Dynasty, more than Liu Bei, and he was particularly friendly to the world, including treating the northern nomads the same, and those nomads admired him in their hearts, so the imperial court appointed Liu Yu to serve as the pastor of Youzhou to impress the invading ethnic minorities. Liu Yu was the official governor of the state of the imperial court, Gongsun Zhan was very dissatisfied, especially when he saw Liu Yu's softness towards the ethnic minorities and clashed with his own decisive killing, Gongsun Yu wanted to get the right to speak in the north, so he killed Liu Yu and detained the emissaries of the imperial court, using this means to make himself the right to speak in the four northern states, and then he competed with yuan Shao, the former ally, for the north.
Liu Yu stills

Gongsun Zhan killed Liu Yu and directly challenged the imperial power, in that era of the chaos of the princes, the emperor had little influence, but it was a label, you tear off the label, then others will not recognize you. Next, Liu Bei, Liu Bei himself is under the brand of benevolence and loyalty to attract the attention of the world, he later got the name of an emperor uncle, he is moving closer to the emperor, then he will leave the big brother Gongsun Zhan who tore off the label, do not say that the soldiers attacked him, at least far away, do not let everyone know that he liu Bei is a false benevolence and false righteousness.
Gongsun Zhan was killed in 199 AD, when Liu Bei was turning to Cao Cao, while cooking wine with Cao Cao and discussing heroes, and on the other hand, he and his uncle Dong Cheng prepared to kill Cao Cao through the edict of the belt. Liu Bei amassed his own strength under the guise of loyalty and righteousness, and later when the edict broke out, Liu Bei ran far away, and even defected to Yuan Shao, who killed his eldest brother, because only Yuan Shao in the north was strong enough to contain Cao Cao.

Liu Bei and Gongsun Zhan are both heroes of the chaotic world, and Gongsun Zhan developed well in the early stage and had good resources. Liu Bei's early stunted development, relying on others everywhere, in addition to Guan Zhang Zhao, there is no talent in his hand, Liu Bei's business card is loyalty and benevolence, through this business card to let himself slowly develop. When Gongsun Zhan began to chase the deer to the north, Liu Bei developed in the Central Plains, and the two gradually drifted apart, and later Gongsun Zhan openly killed Liu Yu and forcibly detained the imperial emissaries, which made Liu Bei stay away from Gongsun Zhan with an iron heart, and the brotherhood ended. Then this can also explain why when Gongsun Zhan was defeated by Yuan Shao, Liu Bei did not rescue Gongsun Zhan.
Another reason is that the transportation and communication in ancient times were very backward, and Gongsun Zhan and Liu Bei did not understand each other's situation after losing contact, so Liu Bei did not send troops to rescue. So what do you think is the reason why Liu Bei did not rescue his former big brother Gongsun Zhan?

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