The southern army of Zhengnan has traveled back and forth between Jiashi and Yiyang several times to escort grain and grass, and now it is familiar with the road, and it is more leisurely.

The logistics battalion is responsible for transporting grain and grass, and the heavy labor of loading and unloading and transporting grain and grass is done by temporarily recruited people, and the army is only responsible for guarding the safety of grain and grass, and does not care about other affairs.

In the absence of enemy attacks, escorting grain and grass itself is a relatively easy errand, especially from Yiyang to Wuqiangkou This section of the road, which is full of plains and smooth roads, wide official roads, and walks very smoothly.

Only the section of the road from Wuqiangkou to the Ghost Chou Stream is more difficult, the road is steep and bumpy, but this section of the road is only dozens of miles long, and it only takes two days at most to reach the front camp of the Wei army.

At first, the Zhengnan Army had a lot of complaints because it was assigned to escort grain and grass, but after these few trips, the task was easy and comfortable, compared to the bloody battles of the Wei army in the other battalions, this errand was almost comfortable to death, so the complaints of the soldiers of the Zhengnan Army gradually decreased.

Even if you are sometimes blinded by the Wei soldiers of other battalions, you can also respond with confidence, what's wrong with escorting grain and grass, there is no Lao Tzu to send you food and drink, you go to drink the northwest wind?

At the beginning, every time the southern army was escorted, it was like facing a great enemy, cautious, on alert, always on guard against enemy attacks, and Ren Ran and Cao Liang made careful arrangements for the marching route and time, and implemented martial law in the surrounding areas of the grain road.

The Wu army could not figure out the route and time of the Wei army's grain transportation, so naturally he did not dare to act rashly.

But every time it was safe, the vigilance of the southern army was relaxed, and they all thought that this area was the rear of the Wei army, and the Wu army did not have the courage to bypass the main force of the Wei army to sneak attack the grain road.

But Cao Liang did not have the slightest carelessness, the weight of grain and grass is very important, and its gains and losses will even involve the victory or defeat of the war, the battle of Guandu that year, Cao Cao was able to sneak attack Yuan Shao's Wuchao granary, so that he was able to turn defeat into victory, creating a classic example of winning more with less in military history.

And Cao Cao also relied on the victory of this battle to unify the north, thus laying the foundation of Cao Wei's rivers and mountains, in other words, without the fire of Wuchao back then, it would be impossible to have this splendid world of Great Wei now.

Although Zhuge Ke is a little stubborn, his intelligence is also known to the world, although he can't be compared with his second uncle, but Zhuge Ke's intelligence is also above the average general.

How to retreat from the enemy, this is obviously a question that Zhuge Ke needs to think about, now the Wu army is on the defensive, the offensive power is in the hands of Sima Yi, whether to retreat or not to retreat is completely up to Sima Yi to decide, as long as the soldiers and horses have food and grass, Sima Yi is entirely likely to turn a quick local war into an endless offensive and defensive war.

In terms of national strength, Wei is fully capable of supporting such a protracted war, and no matter how long it is, I dare not say that it will be under no pressure if it lasts for a year and a half.

The longer the campaign drags on, the more unfavorable it will be, so Wu must strive for a quick victory, and cannot turn a limited war into an infinite war.

And if you want to end the war as quickly as possible, the most effective way is to sneak attack the Wei army's grain route and cut off the Wei army's grain and grass supply, so that even if Sima Yi has the heart to fight again, it is unsustainable.

However, even if Zhuge Ke's covetous heart did not die, before he grasped the exact movement of the southern army, he did not dare to act rashly, so he could only wait for the opportunity.

Waiting for an opportunity and giving up completely are two completely different concepts, and Cao Liang believes that once Zhuge Ke sees an opportunity, he will inevitably come to sneak attack.

Therefore, the army must always have a vigilant heart and always maintain a fighting state to deal with all possible emergencies.

Being prepared for any danger is the minimum quality of an army, and when Cao Liang saw that there were signs of laxity in the southern army, he immediately rectified the military management, and demanded that the men and horses of all battalions and departments must maintain a level of vigilance, and must not relax their vigilance or neglect their duties.

Even on the plain from Yiyang to Wuqiangkou, Cao Liang required all armies to be on guard at all times, and the Xiao cavalry battalion was the focus of prevention, patrolling back and forth to ensure that the entire grain team escorted by the southern army could quickly and effectively organize a counteroffensive in the event of a sneak attack by the Wu army.

Although Cao Liang is only a member of the army, the same position as the plateau, but in the minds of the generals of the Southern Army, Cao Liang is increasingly authoritative, and sometimes even Cao Liang's orders are more effective than Changshi Ren Ran, who is acting as the general of the Southern Expedition.

Of course, this is inseparable from the past achievements, the southern army has turned the danger into a disaster several times, and Cao Liang's strategy has a great relationship, whether it is the breakthrough battle of An Fengdu, or the defensive battle of An Feng City, the southern army fought very thrillingly, if it were not for Cao Liang's strategy at the critical moment to stabilize the morale of the army, or this army would have ceased to exist.

With the happiness of the rest of their lives after the catastrophe, these soldiers of the Southern Army were naturally impressed by Cao Liang, and their reverence also arose, so now every order of Cao Liang, everyone obeys his words, and no one disobeys him.

This time, there were some accidents suddenly, it was a very hot weather, but suddenly it became rainy and the road was difficult to walk.

The climate has become much cooler, but the heavy rain has created a lot of trouble for the march of the army, originally from Yiyang to Wuqiangkou, the normal is four to five days of travel, because the continuous heavy rain makes the road muddy, the baggage truck is full of goods, once caught in the mud pit, it is often difficult to pull itself, and the all-round can rely on people to drag the horse, in order to get out of the quagmire.

At this time, of course, the southern army could not sit idly by, although it was said that the transportation of grain and grass was the business of the people, but when it encountered such difficulties, it could not be solved by relying on the people alone, and could only work together with the southern army to tide over the difficulties.

Because the march in the past few days has delayed the original plan, Cao Liang did not dare to let the Zhengnan army camp and wait for the gas to improve, he could only order the Zhengnan army to advance against the wind and rain, and strive to reach the Wei army's frontline camp as soon as possible and deliver grain and grass.

Under normal circumstances, the Wei army had seven days' rations, and once the seven days passed, they had to rely on the newly arrived grain and grass, so the longer the delay, the greater the impact on the morale of the Wei army.

Under Cao Liang's urging, the Wei army's grain convoy arrived at Wuqiangkou slowly and with difficulty.