#头条创作挑战赛 #
In August 234 AD, the autumn breeze was bleak, the leaves were all over the ground, and the battlefield of Wuzhangyuan was filled with a murderous atmosphere. Shu Han Prime Minister Zhuge Liang is getting thinner and thinner, and he is about to finish his life.
A few years ago, Zhuge Liang reorganized his army and went out to the Northern Expedition, trying to support the Han Dynasty, but unfortunately years of hard work were not rewarded, and this is already his last hope.
In order to get rid of the situation that grain transportation was not carried in time, Zhuge Liang specially trained troops in Huangshatun, north of Hanzhong, and rested for three years before choosing the route for sending troops, which is the area of Wuzhangyuan west of Wugong Mountain.
Zhuge Liang was seriously ill
诸葛亮选择五丈原的原因：稳中求胜，关门打狗
Due to Guan Yu's loss of Jingzhou, the route of Shu Han's troops was compressed to the Longyou area, while Wei Yan guarded Hanzhong for ten years, during which he opened mountains and cut Jing, clearing four feasible roads for future troops.
These four routes are ordered from left to right, which are Chen Cang Road, Baoxiao Road, Luo Gu Road, and Meridian Road, of which Luo Gu and Meridian are not in Zhuge Liang's plan because they are close to Chang'an and have strong defensive forces.
The road to Chen Cang is far away, and the mouth of the valley faces the city of Chen Cang surrounded by mountains and waters, and it was difficult to capture the strong attack, Zhuge Liang surrounded Chen Cang with tens of thousands of troops during the second Northern Expedition, but returned in vain under Hao Zhao, who had only a thousand defenders.
So this time he chose a 170-mile ramp, and an army of 100,000 troops reached the vicinity of Chenxian, which is not far from Chang'an, and together with Yongcheng, it is Chang'an's satellite city, and if it is lost, Chang'an is in danger.
Four mountain roads where Shu Han can send troops
In 228 AD, Zhuge Liang's first Northern Expedition, with Zhao Yun and Deng Zhi as suspicious soldiers, threatened to take the Xie Valley Road to capture Chencheng, pinning down Cao Zhen's tens of thousands of troops and unable to move.
At this time, there are two sets of combat plans in front of Zhuge Liang:
As soon as he went east, he occupied Wugong Mountain, plunged straight into the flank of Sima Yi's army, and fought hard.
The second stopped moving forward and camped at Wuzhangyuan, south of Chenxian County, to hold Sima Yi's army.
Zhuge Liang chose the second one, and at the same time sent a partial army to cross Weishui, occupy the area of Jishiyuan, cut off the road of Chang'an's army to the west to Longyou, and form a situation of closing the door to Longyou and fighting dogs, which was the premature plan of the first Northern Expedition, which shows that he still won with stability and used himself to contain Sima Yi's army.
Map of the situation of the fifth Northern Expedition
孙权十万大军向合肥新城，与诸葛亮共为犄角
The forces of the Three Kingdoms, Cao Wei, were the strongest, and Zhuge Liang also understood that he could not compete with Cao Wei's army by relying on his own army, so before he sent troops, he wrote to tell Wu Lord Sun Quan to ask to send troops together.
In April, when the hot April was rampant and the plague was rampant within Cao Wei, and the army guarding the southeast was at the moment of shift rest, Sun Quan saw this opportunity and agreed to Zhuge Liang's request.
Sun Quan led the army to Hefei New City in person, and then sent Lu Xun and Zhuge Jin to lead more than 10,000 people into Jiangxia, and Sun Shao and Zhang Cheng into Guangling, and the three roads were opened.
The governor of Yangzhou asked Cao Ying to mobilize the Chinese army to assist in the defense, and transferred all the soldiers who had been on leave back to guard the new city.
Since Cao Cao, Jiangdong has been a thorn in Cao Wei's side, and the policy of destroying Jiangdong first has not changed until the Cao Ying period, and Cao Ying attaches more importance to the arrival of Sun Quan than to Zhuge Liang.
Cao Ying chose the Hefei battlefield and sent Qin Lang, a Shu protector, to lead an army of 20,000 to Sima Yi, and he drove his own army and went straight to Hefei.
Zhuge Liang's plan has been achieved, as long as Cao Ying is not there, the pressure on Guan Zhong will be much less.
He only needs to hold with Sima Yi now, and when Jishiyuan takes it, Longyou can decide, and then he can retire from the ramp, but he doesn't know that these tricks of Zhuge Liang have already been seen by Sima Yi.
Sima Yi
亮若出武功，依山而东，诚为可忧，若西上五丈原，诸将无事矣
Sima Yi and Zhuge Liang are old opponents, the two have fought several times, and they have already figured out the opponent's personality, and this time is no exception.
When Zhuge Liang was stationed in Wuzhangyuan, all the generals of Cao Wei believed that they should camp in the northern part of Weishui, and they were separated from Zhuge Liang by 30 miles of Weishui, but Sima Yi did not think so.
He knew that if Zhuge Liang first occupied Wugong Mountain and dealt with Sima Yi with the mountain warfare that the Shu army was most proficient in, then Sima Yi could only be tired of defense and had no time to take care of Jishiyuan, Yangsui and other places.
Of course, the losses of the Shu army were also large, after all, Zhuge Liang had to face the elite divisions of Qin Lang and Guo Huai, and he could not divide his forces to occupy dangerous places.
Gojogahara location
Now that Zhuge Liang occupies Wuzhang Yuan, he will not take a step forward in the local tuntian, which shows that Zhuge Liang has no intention of fighting a decisive battle, and he is still thinking of seeking stability.
Therefore, Sima Yi was not worried about a decisive battle with Zhuge Liang, took advantage of the fact that the Shu army was not on a firm foothold to cross Weishui, face to face with Zhuge Liang, and under Guo Huai's reminder, sent troops to Jishiyuan to guard and repel Zhuge Liang's attack.
At this time, Zhuge Liang received a desperate news: Sun Quan had retired again.
Sun Quan's withdrawal meant that Zhuge Liang's plan to attack on two fronts was ruined, and Cao Wei reinforcements in the southeast could continue to be mobilized to support Guanzhong , and even Cao Ying himself was not impossible.
Originally, Zhuge Liang took the ramp and slowly retreated, which could also save the living strength of the army, but his physical condition was too poor, and he still decided to fight a decisive battle and open the situation before the arrival of Cao Wei reinforcements.
Starfall Gojohara
Reference: "Three Kingdoms. The Biography of Zhuge Liang", "Zizhi Tongjian"