At the beginning, Shu Han and Cao Cao fought for Hanzhong, although they seized the land, but the population of Hanzhong moved more than half of the other party, and more than 100,000 families were relocated to Guanzhong. Only a small part of the population remains.

Wei Yan has served as the Taishou of Hanzhong for so many years, constantly training soldiers and soldiers, and Tuntian to support the people, and Hanzhong has only improved a little and recovered some vitality.

"Meet Your Majesty!" Wei Yan was quite excited, and hurriedly rode his horse to meet him.

Yang Yun sensed slightly, the qi in the other party's body was strong, and it was only slightly inferior to Huang Zhong, Zhao Yun and the others, who did not condense the acupoints.

This general, who is not weak in cultivation, was later killed by Yang Yi and Ma Dai because of the struggle for power and profit, which was really a loss for the small court of Shu Han.

"No need to be polite! Wen Chang, you should already know that I went north to Hanzhong this time to prepare for the Northern Expedition, and if I want the Northern Expedition, Hanzhong is the top priority!"

"I want to know now, how much grain is stored in Hanzhong, how many soldiers are there, and can they bear the burden of logistics for the Northern Expedition?"

Wei Yan laughed and said: "Your Majesty, rest assured, the minister has already prepared in Hanzhong, and the grain and grass have already been prepared, just wait for Your Majesty's order, and the minister can lead the army north to take Chang'an!"

With that, everyone walked into Nanzheng, which was originally the capital of Hanzhong, but due to the vast and sparsely populated area, a large army was stationed for a long time, and now it has gradually transformed into a fortress for raising soldiers.

"Your Majesty, I don't know when our army will send troops, and the minister is willing to be the vanguard!" After entering the main hall in the city, Wei Yan immediately couldn't wait to ask for his life.

Ma Chao's complexion on the side suddenly changed slightly, and he glanced at Wei Yan lightly. He and Cao Wei have a grudge against each other, and they have long regarded the vanguard general as their own. Now Wei Yan is actually stepping in sideways?

"Not busy!"

Yang Yun smiled, then his eyes swept over several generals, his heart moved slightly, and asked, "The army still needs to prepare for some time, and now is not the best time." Wen Chang, Meng Qi, Zilong, do the three of you have a strategy for sending troops during this Northern Expedition?"

The three generals glanced at each other, feeling that this seemed to be a test for them, and using this test to decide what the three of them would be responsible for in the future of the Northern Expedition.

"Your Majesty, there are several routes for sending troops from the Northern Expedition of Hanzhong, but from the perspective of the ministers, it is best to go to Qishan, attack Longxi first, unite the Qiang soldiers and horses, and then attack Guanzhong!" Ma Chao said without the slightest hesitation.

As a native of Liangzhou, he had great prestige among the Qiang tribes, so he naturally chose the route of sending troops from Qishan.

When Wei Yan heard this, he couldn't help it, and hurriedly stood up and hugged his fists and said: "Your Majesty, in the opinion of the minister, you should send troops to the Meridian Valley! The Meridian Valley is hundreds of miles away from Chang'an, as long as you give the minister 5,000 elite soldiers, if you suddenly attack the city of Chang'an, you will definitely be able to take Chang'an and lay down the situation in Guanzhong in one fell swoop!"

Yang Yun glanced at him.

Sure enough, Wei Yan still proposed a plan to send troops to Meridian Valley. However, the terrain of the Meridian Valley is narrow, the mountains are steep, and the plank road has fallen into disrepair. It's okay for a small group of troops to pass through, but if a large army passes through, it won't work.

In the original timeline, Wei Yan once proposed the strategy of sending troops to the Meridian Valley, but Zhuge Liang did not adopt it, which led many people to regret that Zhuge had been cautious and never made risks in his life, and as a result, he did not seize this excellent opportunity to capture Guanzhong.

"I remember that later Cao Zhen also led a large army from the Meridian Valley to attack Shu Han, but as soon as he entered the valley, he encountered heavy rain and spent a lot of grain and grass on his baggage, but he had to turn back without gaining an inch. And in history, there has never been a precedent for attacking Guanzhong or Hanzhong from the Meridian Valley!"

Although Shu Han's soldiers and horses are elite, they cannot be compared with Wei in terms of numbers, and if they send troops to Meridian Valley, there is a great chance that an elite will be lost in vain.

Wei could take the risk, but Shu could not afford to take the risk. And the city of Chang'an is strong, with only thousands of soldiers and horses led by Wei Yan, even if the troops can come to the city, there is not much certainty of capturing the city.

The success rate of passing through the Meridian Valley is thirty percent, and the probability of capturing Chang'an is only two or three percent.

However, this is a calculated probability under normal historical circumstances.

"If you let Zhao Yun and Wei Yan join forces together, there will be Zhao Yun, a military general in the realm of the Innate Great Grandmaster, with the army...... It's not impossible to attack Chang'an from the Meridian Valley!"

Yang Yun groaned in his heart, but he didn't show it on his face.

"Your strategy is good, I will definitely consider it seriously, now it's better to prepare first!"

Yang Yun waved his hand, blocking some of the disputes between Wei Yan and Ma Chao.

Next, he carefully observed the terrain near Hanzhong, and personally went to Baochuan Road, Meridian Road and other places to explore. Except for the narrow and rugged Meridian Valley, which is inaccessible, the other avenues are quite spacious.

didn't let Yang Yun wait too long, and soon, the news of Cao Pi's death in Luoyang reached Hanzhong.

After knowing the news, Yang Yun immediately sent an order, and the government and army of the entire Yizhou and Jingzhou began to speed up, with grain and grass allocation, and frequent mobilization of soldiers and horses.

Huang Zhong and Ma Tan were transferred to Jiangling, led 20,000 troops, and looked at Xiangyang. Yu Ban led the newly trained naval army to garrison the public security and guard against Jiangdong.

After discovering the movement of the Shu army, Cao Xiu, the general of the Wei State Expedition to the East, personally led his troops to help, and the troops were stationed in Xiangyang.

Jiangdong also received the news of Cao Pi's death, and Sun Quan was immediately ready to move, ordering Zhuge Jin to lead a large army to the north, waiting for an opportunity to attack the land of Huainan.

As soon as Cao Ei ascended the throne, he was attracted to a large part of his energy by Jingzhou and Jiangdong. He began to continuously mobilize grain and grass forces to guard against the surprise attacks of Gangneung and Gangdong.

When a big war was about to start in the Central Plains, after receiving Yang Yun's holy decree, Zhuge Liang had already led 80,000 elites to Hanzhong to join Yang Yun.

Yang Yun referred to the marching strategy of Zhuge Liang, Ma Chao and Wei Yan, and asked Wei Yan and Zhao Yun to lead 3,000 Wudang Fei troops, and 5,000 elite Shu troops to march from Meridian Valley.

Yang Yun and Zhuge Liang led 50,000 horses, together with Ma Chao's thousands of Qiang horsemen, to attack Longxi.

There are also 20,000 people, led by Chen Zhi and Liao Hua, to Shangyong, echoing left and right. See the opportunity to support Jingzhou or Hanzhong.

Shu Han's power is now second only to Wei, and it has become Cao Wei's confidant. Therefore, before Cao Pi died, he was ready for the Shu Han army to go north.

Among them, the general Cao Zhen personally went to Chang'an to defend the town, and Cao Rong issued the armor of the arsenal in Luoyang and began to recruit young and strong emergency training soldiers.

However, although Wei Guo's reaction was fast, it was still a beat slower than Yang Yun, who had been gathering momentum for a long time.

The army of Wei has not yet been rectified in Guanzhong, and the army of Yang Yun and Zhuge Liang has already invaded Qishan, and the three counties of Nan'an, Tianshui and Anding in the land of Longyou have been besieged by the army, and they surrendered in order to survive.

The Shu army took the land of Longyou without much effort. Condescending, tiger in the middle.