Cao Zhen, the general of Cao Wei, predicted that Zhuge Liang would choose Chencang for the second time, so he sent Zhao Hao, the general, to focus on defense. Chencang Road is the key to Hanzhong. Liu Bang decided to take Sanqin Road that year. After the war, Wei generals Cao Zhen and Zhang He thought that the Shu army would attack again, and Xiegu Road was burned by Zhao Yun, the Shu general, and Qishan could not be captured. They thought that if the Shu army attacked again, they would go to Chencang, so they sent generals Zhao Hao and Wang Sheng to reinforce the Yugoslav capital and stationed troops in Chencang.
Zhuge Liang had twice sent Jinxiang, a native of Zhao Hao, to surrender at the city gate. Zhao Hao said that he was deeply grateful to his country. When he was told to die, Zhao Haofa swore to death for the second time and ordered people to bow and shoot arrows. Zhuge Liang saw that surrender was hopeless, but Chen Cang was obviously not. Moreover, the roads are narrow and the troops cannot fully develop. Regardless of whether Zhuge Liang has an army of 100,000, even if there is, it is not necessary. The generals who besieged the city certainly included Wei Yan, who was regarded as a great god by many people.
Cao Cao attacked Yecheng, Guan Yu attacked Fancheng and Sun Quan attacked Hefei, and none of them succeeded. For Chen Cang, the pass is narrow, and one person can guard it, and ten thousand people can't take it by surprise. One way is to send a small team around the rear, cut off contact with the rear, replenish reinforcements, reclaim land and restore the economy. If Cao Cao and Sima Jia do not make a big mistake, it is only a matter of time before the Central Plains is stable and the South is pacified. What's more, he is basically the best in the crowd. Before the Battle of Chencang, Zhao Hao had been guarding Hexi.
Zhao Hao lived up to expectations. Facing Zhuge Liang's army, he was determined not to provoke or surrender. All kinds of siege tactics of Shu army were broken by Zhao Hao and fought back. Attacking Chen Cang is an illusion. The purpose of attacking Chencang is to cooperate with Wu Dong's military action, while the purpose of attacking Chencang is to attack the city and seek help, and to use a more favorable environment to destroy the enemy more effectively.