After hearing Tian Yilong's question, Zhou Faming didn't react for a while. It was not that he couldn't answer this question, but that this question was too much. Of course, based on the other party's background, it was understandable to ask such a question.

"A small group of elite troops can do it. If the large army dares to do this... tsk tsk, it's a dead end." Zhou Faming said, "If you don't say anything else, what should you do if you have food, supplies? What should you do if you siege equipment?"

Before Tian Yilong could answer, Zhou Faming began to explain that the so-called "the army and horses should move forward before they move, and the large army consumed a lot of food and grass. If they didn't go through the eight passes of Taihang Mountains, they would pass by but the food and grass could not pass by. What's the use?

If you want to walk along remote mountain roads, the soldiers should not carry too much food, so there will not be much food, at most five or six days. What can this be used for? Maybe you will eat it before you cross the mountain.

Even if you successfully cross the mountain, it will not work. Unless the generals of the opposing city guards are idiots and flee when they see the enemy coming, they will be brave and clearing the world to defend the city. Unless they take down Xingdao and transport the food and grass, where will the army that crosses the mountain go to find food?

Not to mention that if there is no baggage, even the siege equipment cannot be built. If it is delayed for a few days, it will be dizzy and not say that it is too hungry, the opponent's reinforcements will be finished.

"One of the so-called places where military strategists must fight for is the food route. If the food route cannot be kept smooth, then any battle is empty talk."

"Oh..." Tian Yilong seemed to understand. He was different from a general like Zhou Faming. No one taught him how to march and fight. Therefore, his general impression of fighting was that he had more soldiers based on his personal courage.

Zhou Faming gave another example: the offense and defense of the Yangtze River.

The Yangtze River starts from the Three Gorges and goes into the sea downstream for more than 2,000 miles, and the river bank also stretches for more than 2,000 miles. To be honest, the boat cannot land wherever it is docked. Why are the ferries or estuaries between the north and the south competing for?

It's very simple, it involves the transfer of food and grass and the dispatch of troops.

A general of the Northern Army suddenly had a whim. Before the Southern Dynasty navy reacted, he led tens of thousands of troops to land on a remote south bank. Then the problems followed one after another: this was not a traditional ferry, so there might be no ready-made road within a radius of dozens or hundreds of miles.

There is a large area of ​​swamps, deserted beaches, reed marshes, ponds, lakes and rivers. How can your soldiers move to attack the Southern Dynasty city?

Then the river is covered with mud, and it takes a lot of time to move the heavy grain and grass to ashore. The problem is even greater, because there is no road to transport, so why not open a road?

Just kidding! When you, tens of thousands of troops finally set off a road and went to the official road through all your hardships, the Southern Army has gathered troops to wait for you to die.

Want to withdraw? The Southern Navy blocked the river and burned all your ships, but still wanted to leave?

Unless it is a surprise attack on the city by the river, if you are not careful, you will be finished. After all, the Southern Army Navy is not a vegetarian. If you dare to cross the south without defeating the Navy, it is almost like seeking death.

Well, you have been driving the road for several months, defeating the Southern Navy and the land troops, and then siege the city through a lot of hardships, and then the rainy season comes.

The rainy season in Jiangnan is not a joke. If it is continuous rainy for a while, it will take half a month. If the bowstrings are soft on rainy days, they will not be able to fight and can only wait. If the camp is accidentally flooded.

The siege army was wet from the rain outside the city, not to mention food, grass and clothing, maybe even people would become moldy.

For the idea of ​​landing casually, tens of thousands of troops fell into Jiangnan and became moldy and then wiped out. That was the word "tragic".

Therefore, in addition to the decisive battle between the navy, the offensive and defense on both sides of the Yangtze River revolves around the ferry and the estuaries, and the battle on the front line of the Yellow River also revolves around several ferries.

Of course, the Yellow River is not as wide as the Yangtze River. It can pull a floating bridge on the river surface, and it will freeze again in winter. At that time, the cavalry of the Northern Army stepped on the ice and crossed the river, and everything was done. They could bypass the strongholds of the Southern Army and attack the south.

When the Song army in Yuanjia attacked the northern front line of the Yellow River, Tuoba Foli led the Wei army, mainly cavalry, to move southward, crossing the Yellow River directly across the ice, and then rushed all the way to the Yangtze River, causing the land of Liu Song and Jiangbei to be destroyed and then returned home. The Song army in Henan could only trap the stronghold, and watched the Wei army burn, kill and loot but did not dare to fight.

If the Southern Army’s cavalry is not strong, it will be as miserable as possible.

"Who is Tuoba Foli?" Tian Yilong didn't understand the person Zhou Faming said at all.

"Tuoba Tao, Emperor Taiwu of the Northern Wei Dynasty, had a small name called Foli." Yuwen Wen replied, he was helpless about Tian Yilong's poor level of knowledge.

In this era, knowledge was monopolized. Whether it was classical or military studies, most of the knowledge was monopolized by the powerful families of aristocratic families. Studying requires teachers to explain the difficulties, and asking teachers requires money and tuition fees to study.

You also have to bring your own pen, ink, paper and inkstone. This costs money and costs a lot, because paper is very expensive and books are not cheap.

Learning how to lead troops to war requires people to teach their experience, otherwise you have to pay the price of your life to experience it yourself.

How to march, camp, set up formations, provoke, explore the terrain, and manage soldiers? No one teaches this knowledge, and only family members or generals from generation to generation will be passed down from generation to generation.

Of course, there is another way: self-taught. Survive in one bloody battle after another, and then you have to summarize the experience and lessons, join the army for decades, and use human blood to coagulate knowledge.

Then it is very likely that you will meet a bullshit army supervisor, forcing you and your subordinates to go to the dead end. It is extremely difficult for soldiers from civilian origin to climb to a high position with their military achievements. Without family support and clan help, even the troops cannot be even enough.

Without a military force, it is common for those soldiers, soldiers to be sluts, mutinies, and retreating in the face of battle. This is also one of the reasons why the military force is prevalent.

So Yuwen Wen decided to change the status quo, just as he didn't like the generals of the Hulin Army having their own corpses, he didn't like the generals under him who didn't know one of them, could not understand military books, could not summarize experience, and could not understand simple arithmetics.

A soldier consumes seven liters of grain a day, and a building with three hundred soldiers. So how much grain does the building consume in a month?

Can't calculate it?

The large army and the baggage were marched for about 40 miles a day. From Bazhou to Anzhou, it took 400 miles a day. How many days does a thousand people need to carry food?

It doesn't count? Let's have fun!

Yuwen Wen became angry when he thought of this. He led his troops to mobilize and couldn't figure out how much food he had to bring. This is the rhythm of being killed by the quarantine officer sooner or later.

After the war, we held a summary meeting and we couldn't explain it clearly what the experience of this battle was, what lessons were, how to improve the advantages, or how to avoid the disadvantages.

Without learning ability, where can we get the space for growth?

Therefore, Yuwen Wen asked the generals of the Hulin Army to be able to read and write, and to be able to do arithmetic. If you have problems when reading military books, you can at least think independently, or communicate with others to discuss. This requires "cultivation".

Not only that, you must also be able to read and write official documents and military orders, so as not to be fooled by the ghostwriter and not know it even after being fooled by the ghostwriter.

While thinking, the emperor was driving slowly forward. Yuwen Wen called the entourage to follow up, looked at the stretching Taihang Mountains to the west, and then rode his horse and whipped away.

‘Jingxing, the east exit is the Shijiazhuang territory of later generations, Shijiazhuang Zhao... Changshan Zhao Zilong...’

......

Taihang Mountains, from north to south, are almost uninterrupted, and its eastern foothills are particularly steep and difficult to climb as the northern slope of the Qinling Mountains. Such a natural barrier almost cuts off the traffic between the east and west foothills.

The so-called road is boundless. There are also rifts in the Taihang Mountains that run east-west, providing natural channels for the exchange between the east and west sides of the mountain range. There are eight more famous channels, which are the Eight Passes of Taihang.

A tributary of the Hutuo River, Mian River, flows out through the fault valley, and the pass along the river is "Jingxing", which is the fifth pass of Taihang.

From Jingxing to the east, it was Zhending, an important town in Hebei. It is now under the jurisdiction of Changshan County, Hengzhou, Zhou State; from Jingxing to the west, it is Jinyang, a famous northern city, and now it is under the jurisdiction of Taiyuan County, Bingzhou, Sui State.

The stone walls on both sides of Jingxing are steep and narrow, and the chariots cannot be square, and the cavalry cannot be parallel. It is almost unhappy to be difficult to move. Whenever there is war between Shanxi and Hebei, the march between the east and west of Taihang Mountain will mostly take the way here.

There is Jingxing Mountain at the exit of the eastern section of Jingxing. On the mountain is Tumen Pass, also known as Jingxing Pass, which is under the jurisdiction of Jingxing, Zhending County, Hengzhou, Zhou State. This is set up in the Han Dynasty and is known as the "Shangdang Sanguan" together with Huguan in Baixing and Tianjing Pass in Taihangxing.

In view of this, the Zhou State deployed heavy troops at the Tumen Pass at Jingxingkou to strictly prevent the Sui army on the west side of Xing from attacking along Jingxing, and then went east to enter the Hebei boundary. After the Zhou army was ready, it could also set out westward and break into the Bingzhou boundary to attack Jinyang.

Jingxing is also known as the Qinhuang Ancient Road. When Qin Shihuang was on the eastern tour, he died in Hebei. His body was from Jingxing to Jinyang, then went to Yanmen, entered Jiuyuan in the clouds, and finally returned to Xianyang from Jiuyuan to Ganquan.

More than 700 years ago, a major war occurred in Jingxing, which was the battle of Jingxing, also known as the "Fight of the Water". At that time, the Han army led by Han Xin advanced from Jingxing eastward to attack the Zhao State in Hebei. After the Zhao army was inquired, they gathered at Jingxingkou to prepare for the battle.

There was Mianmanshui, which was heading north and south to the west of Jingxingkou. Han Xin led the newly trained Han army to cross the east and then lined up with the river. Seeing this, the Zhao army mocked the Han army generals for not knowing the troops and actually put them to death.

The Zhao army went all out to attack with all their might. The Han army soldiers had no way to retreat and fought back, and finally repelled the Zhao army. At this time, the partial army sent by Han Xin had taken down Jingxingkou, and the Zhao army, who was in a dilemma, had to surrender.

In view of this, the defenders of Jingxingkou in all dynasties no longer attacked easily. They could withstand the attack of the enemy from the west as long as they defended the pass to the death. The opponent had to retire with exhausted food. The Zhou army also followed this "tradition", and the main force of the defenders gathered at Jingxing Pass.

As long as the Jingxing Pass was guarded, even if the small Sui army came over the mountains on other small roads, its army was still blocked in the narrow mountain road of Jingxing and could not move.

Without reinforcements and horses, there were no food and grass, the small Sui army that came over the mountains could not cause any storm.

The autumn wind is bleak, and the geese that are heading south for winter pass over Jingxing Mountain. Among the mountains on the north side, a group of people are climbing the mountains from west to east. They are wearing cloth clothes but carrying weapons and dry food. Suddenly, one of them accidentally falls and falls down on the cliff and is broken into pieces.

"Don't look at it, keep moving forward!"

"General, the mountain road is slippery after the autumn rain. If you drive too fast, you may be..."
Chapter completed!