Generally speaking, to trap a city, the defender of the city basically does not add much consumption.

And the cost of the besieging side will be several times that of the defending side.

On the defending side, the grain and grass are all around, and there is no need to transport it from other places, while the surrounding side is different.

If the same 300,000 troops, Zhang Yu's side will mobilize hundreds of thousands of people to transport grain and grass for them, and these hundreds of thousands of people will also have to eat.

In this way, Zhang Yu's side is not a matter of eating for 300,000 people, but about eating and drinking for millions of people.

In this way, the test for Zhang Yu and them is very huge.

Huge consumption, which will overwhelm the whole territory.

However, Zhang Yu has no such concerns.

He has money, a lot of money to call on, and grain and grass are not a problem.

A large amount of grain and grass was transported.

Zhang Yu and the others began to dig trenches, so that the army inside could not get out.

After digging for several days, a trench more than ten meters wide and more than two meters deep was dug to surround the entire city.

"Zhang Yu wants to trap us?"

There was no big war, Cao Cao led people to the city to take a look.

Cheng Yu shook his head and said, "Zhang Yu is not an unwise person, they must have other purposes. ”

Several strategists and Cao Cao didn't think of what Zhang Yu was going to do, but if Zhang Yu didn't attack, they wouldn't be in a hurry.

After looking at the city for a few days, Zhang Yu's army did not take any other action except defense or training.

This made them wonder.

Zhang Yu's army squatted outside the city, and finally simply trained there.

Cao Cao went to the city again, and when he saw the appearance of the army outside the city, he was puzzled.

On this day, only Cheng Yu went to the city with him.

"This Zhang Yu, isn't it to lure Lu'an's army to come and support, and then annihilate them." Cao Cao asked.

Cheng Yu said: "Lord, there is this possibility, but Zhang Yu has been very urgent in the past two years, and several times he would rather sacrifice more than speed up the progress of the attack, this time the situation is very unusual." ”

This time it was indeed unusual that Zhang Yu changed his tactics and actually surrounded them in the city.

It may just be protracted.

And Zhang Yu, let the soldiers train well, just replenished a large number of recruits.

And he planned in the big tent.

"You can create more remarks to make Cao Jun chaotic."

"Taking advantage of Cao Cao's absence, they are expanding again, and they are in urgent need of talents, so they secretly arrange some people to go over, and the positions cannot be high, and then it depends on their ability."

"Intensify the offensive in the north, without Cao Cao's instructions, there may be some problems inside."

Zhang Yu is planning, Cao Cao is not there, it is a good time to disintegrate their interior.

Zhang Yu wrote out item by item and prepared to implement it.

It was not for nothing that he trapped Cao Cao here, but it was extremely useful.

trapping Cao Cao, he has no control over the entire Cao Group.

Although there is still Cao Ang and many of his subordinates, if he is absent for a long time, and rumors are spreading, there will definitely be chaos inside.

Zhang Yu just wants to cause a lot of chaos within the Cao Group.

Moreover, Cao Cao is not there, many things cannot be dealt with in time, and there will definitely be internal accidents at that time.

Soon, a month passed, Zhang Yu did not fight again, and Cao Cao became more and more anxious.

At this time, he hadn't received information for a long time, and he didn't know what was going on here.

At the same time, the surrounding Cao Jun was also very anxious.

They wanted to infiltrate, but Zhao Yun sent soldiers to cover all the surrounding ten miles, and then searched intensively within a radius of thirty miles, so as not to let the enemy scouts come in.

In this way, Cao Cao completely lost contact with the outside world.

Cao Cao is still calm here, but he is not calm outside.

Cao Cao was surrounded inside, and the other Cao troops were very nervous, and Cao Cao lost contact with his generals for about a month, which made them very nervous.

I was so nervous that I didn't know what to do.

The surrounding Cao Jun was restless, but he didn't dare to send troops easily, for fear of falling into Zhang Yu's trap.

Cao Cao realized this, and then said: "We have been besieged for a month, and the outside does not know our situation here, which is very unfavorable to us, I am afraid that some troops will be fooled and rush to the rescue." ”

Cao Cao asked everyone to see if there was any way.

As a result, there was nothing anyone could do.

"Kill it?"

Apparently impossible.

Zhang Yu built a strong defensive line outside, and then also dug a trench, and it was impossible for them to jump from the inside of the trench.

In this way, Cao Cao and they have no choice.

However, Zhang Yu did want to lure out the armies of other cities, but this was not the main purpose.

For a month, Zhang Yu didn't make any moves.

The people who spread the rumors are ready, just waiting for when it starts.

In addition, Zhang Liao's offensive was also smooth.

Everything is developing in the direction that Zhang Yu envisioned.

After a few more days, Zhang Yu still didn't make any moves.

A large amount of supplies were brought in.

Zhang Yu has been planning in the big tent for a long time, and he came out to take a walk this day.

"Hehe, there's a market here."

Zhang Yu inspected it, and there were people who picked things up and came here to sell them.

Of course, this is also allowed by Zhang Yu, and these people who can come over are also selected, and they are all people from Hefei City.

However, they can only be on the periphery, because Zhang Yu asked them to help transport grain and grass, and some people brought some things to sell.

"Well, yes, and fruit."

Zhang Yu was in a small market and bought a little fruit to eat.

"General, if you like, eat more. No money. Said the fellow who sold things.

Zhang Yu took another orange to eat.

"The money must be given, otherwise no one will dare to eat it."

The people also laughed, they dared to come here to sell things, because they knew that the army here would definitely give money.

Everywhere else is afraid of the army, but they are not afraid.

Zhang Yu walked around and saw that the people were helping to transport grain and grass, as well as a large amount of firewood.

If the army here wants to cook, it has to burn the fire and let the people transport.

Zhang Yu felt that these people must have enemy spies, and they just happened to spread the news.

Zhang Yu deliberately bought something to eat from a small vendor.

"Brother, sell chaos here, is the business good?"

It was an old man who sold chaos, and he laughed and said, "Haha, it's all everyone's help, and the business is good." ”

Zhang Yu took a few bites, and then praised the good taste.

The old man saw that Zhang Yu was talking, and he happened to be idle at this time, so he asked, "General, how long will this battle last?" ”

"I don't know, that Cao Cao is seriously ill, if it can be delayed until he dies, this battle will be much easier to fight, and there is no need to die so many people in vain." Zhang Yu said after taking another bite.

The old man said: "Yes, what a good baby, what a pity if you die on the battlefield." ”

Zhang Yu deliberately revealed some less important news.

Zhang Yu went back in a circle, and then ordered some troops to train on the periphery.

(End of chapter)