After Liu Bei raised an army, Zheng Du, a Guanghan man from Yizhou, proposed a strategy to clear the wilderness and proposed to drag Liu Bei down with a protracted war.
He said to Liu Zhang: "The left general Liu Bei's lone army went deep and attacked from afar, his soldiers were less than 10,000 people, and the generals did not wholeheartedly attach themselves to him, and the army had no weight, and could only feed by plundering the crops in the fields." Therefore, the best way is to drive all the people in Brazil and Zitong to the west of neishui and Fushui, burn all the grain materials in the warehouses of Brazil and Zitong, and burn all the crops in the fields. Liu Bei led the army to challenge, and we could not hold out. They have nowhere to loot grain and grass, but in a hundred days, they will inevitably retreat automatically, and when they retreat, we will attack again, and we will definitely be able to capture Liu Bei. ”
When Liu Bei heard the news, he was very worried and asked Fa Zheng for countermeasures.
Fa Zheng said, "Liu Zhang will not adopt Zheng Du's strategy, you don't have to worry." ”
Liu Zhang said to his subordinates, "I have heard of those who resist the enemy to protect the people, but I have never heard of moving the people to avoid the enemy." ”
Not only did he not adopt Zheng Du's strategy, but he also dismissed his officials.
Liu Zhang sent Zhang Ren, Zhonglang's general Wu Yi, and his generals Liu Xuan, Leng Bao, and Deng Xian to fight against Liu Bei.
Wu Yi and others led an army to fight Liu Bei fiercely around Fu County, but they were all defeated and retreated to Mianzhu (陳竹; present-day north of Huangxu Town, Jingyang District, Deyang, Sichuan).
Wu Yi led his army to surrender to Liu Bei and was appointed as a rebel general.
Liu Zhang, who appointed Li Yan as the protector of the army and Fei Guan as his deputy, sent the two men to command the various armies and horses stationed in Mianzhu to resist Liu Bei.
Li Yan (?) –234), later renamed Li Ping (李平), also spelled Zhengfang, was a native of Nanyang.
When Li Yan was young, he was a full-time official in the county, known for his talents, and served as an official in several counties under Liu Biao.
When he was in charge of the county order, Cao Cao entered Jingzhou, so he rushed west into Shu, which was used by Liu Zhang as the county commander of Chengdu.
Fei Guan (Fei Guan), courtesy name Binbo, was a native of Jiangxia County (present-day West of Luoshan County, Xinyang City, Henan).
Fei Guan entered Shu with his brother Fei Boren in his early years.
His aunt of the same clan was Liu Zhang's mother, and his wife was Liu Yan's daughter, so he was both Liu Zhang's cousin and Liu Zhang's brother-in-law.
Fei Guan has a straight personality, is very talented, shrewd and strong, methodical, and good at debate, and is both moral and principled, willing to be charitable and charitable, and very popular.
Li Yan's personality was reserved and arrogant, and at that time, many people of similar age and position to him, Li Yan did not despise to be close to them, but instead interacted with Fei Guan, who was more than twenty years younger than him, just like his peers.
When the two arrived in Mianzhu, not only did they not actively organize forces to resist Liu Bei, but as soon as Liu Bei arrived, they directly surrendered together with Fei Shi, the county commander of Mianzhu County.
Fei Shi (Fei Shi), courtesy name Gongju, was a native of Nan'an County (present-day Leshan, Sichuan) in Yizhou, and had earlier been appointed by Liu Zhang as the county commander of Mianzhu County.
After Li Yan surrendered to Liu Bei, he was appointed general of Pei.
After Liu Bei took over Yizhou, he served as an overseer with Fei Shi, and later served as the Taishou of Muke, and then transferred to Sima of the former department of Yizhou.
Liu Bei easily occupied the last barrier in Chengdu, Mianzhu, and became more powerful, dividing his troops to occupy the surrounding counties.
Liu Xuan and Zhang Ren retired to Luocheng (雒城, in modern Guanghan, Sichuan) and joined Liu Zhang's son Liu Xun in defending the city.
Zhang Ren(?) –213), a native of Shu County, Yizhou, was born poor, but had been bold and courageous since childhood, had ambitions and integrity, and later became a scholar in Yizhou and served as an official.
Liu Bei marched and prepared to besiege Luocheng.
Zhang Ren led his army out of the city and fought liu Beijun at Jinyan Bridge, where he was defeated and captured.
Liu Beisu heard of Zhang Renzhongyong's name and persuaded him to surrender.
Zhang Ren said sharply, "Old Minister, I will never do anything to the Second Lord." ”
Liu Bei sighed and ordered him to be killed and marched to besiege Luocheng.