"My dynasty is different from the Han and Tang dynasties, and the Han and Tang dynasties are also different from our dynasty!"

"In the Han and Tang dynasties, the capital was mainly in Guanzhong, Luoyang, where there was a dangerous terrain, attacking the imperial capital of a country, it was inevitable to attack Tongguan, Wuguan, Hujiao Pass and other dangerous cities. Most of these dangerous passes are on dangerous terrain, and only a small number of troops are needed to make the enemy helpless. The law of locking up the city, the siege of the fortress, there is nothing to do at all, and a long-term siege is not cost-effective at all. It may be that the besieging side has run out of food, and the defenders on the pass still have enough food, and the only way to conquer such a city is to keep adding to it with dead people, or to attack it by detour. ”

"And I am facing the capital city of Bianliang, located in the plain area, there is no dangerous pass, and it is a densely populated city, which is destined to change the law of defending the city, otherwise I will suffer!"

Zhao Pu said, his eyes were a little declining.

Soldiers are impermanent, and water is impermanent. The battle situation is changing, and the strategy against the enemy must also change, otherwise it will suffer a big loss. The form of the Song Dynasty has been very different from that of the Han and Tang dynasties, and the law of defending the city must also change accordingly. However, under the influence of the idea of lightly practicing martial artists, the idea of defending the city did not keep pace with the times, and still stayed in the Han and Tang dynasties, so there were fiascos again and again.

If you are backward, you will be beaten, and if you are backward, you will have to pay tuition, and the price is heavy, and in the midst of the heavy failure, you will begin to sum up the experience of failure, begin to reflect, and become conscious, and finally there will be some progress.

"The victory or defeat of a war does not depend on the number of troops, but on the rational use of troops. For example, the first battle of Bianliang Guard. Our army has a large number of people defending the city, and the Jin army has a small number of people attacking the city, so at this time, a large number of troops will be withdrawn into the city and the city wall will be defended, which is just a waste of troops. At this time, the most important thing is not to attack riskily, nor to defend passively, but to replace defense with offense............ Offense is always the best defense! “

Suddenly, Zhao Pu also squatted down, swayed the stones on the ground, and began to tell and analyze the offensive and defensive battles of Bianliang and Taiyuan!

In the hands of famous generals, there will never be a shortage of troops, and there will never be a surplus of troops, and they can always arrange their troops reasonably.

Li Gang is only a civil servant, and Wang Yu is only a patriotic general, they are not famous generals, in the first Bianliang defense battle, Taiyuan defense battle, they will withdraw their troops to the city, are relying on the city wall defense, but ignore the Jin army is small, and not good at attacking the city, each siege area is limited, only a part of the troops can be, safe and sound, and most of the troops in the city are idle.

That is to say, in the first battle of Bianliang, the Song army had hundreds of thousands of troops, but there were less than 20,000 troops fighting with the Jin army on the city wall, and the remaining 100,000 troops were all playing soy sauce, which was one of them.

Second, the walls have a double-sided effect, sometimes with turtle shells, sometimes with stone urns. If it is properly used, it is a turtle shell, which can force a large number of enemy troops with a very small number of troops; But if it is not used properly, it is a stone urn, which is enough to trap yourself alive.

In the course of the Song and Jin wars, the soldiers and horses often withdrew into the city, so that there was no force outside the city to contain them, and the Jin army could safely use the city lock method and trap it to death.

At this moment, Zhao Pu and Yue Fei were talking to each other, sometimes arguing fiercely, sometimes agreeing with each other, and gradually entering a better situation.

………………

When night fell, I finally saw Zhang Suo.

"Meet Your Majesty!" At this time, Zhang Suo came back with a tired look, but he still put his head upside down on the ground.

Zhao Pu said: "You have worked hard, how is the situation on the front line?" There wasn't too much fancy, Zhao Pu directly pointed out the theme.

Zhang Suo smiled bitterly: "It's not good! ”

"Very bad!" Zhao Pu frowned.

As he spoke, Zhang began to tell about the defense of the former Yellow River front. The boats on both sides of the Yellow River were confiscated, and the trees along the Yellow River were cut down in order to prevent the Jin army from crossing the river. and built a beacon tower on the side of the Yellow River, lighting wolf smoke during the day and raising fire at night! At some key ferries, heavy troops were deployed in order to prevent the Jin army from crossing the river.

However, the Jin army was not simple, using sheepskin rafts to cross the river several times, several night raids, and multiple attacks, after fierce battles, although the Song army finally held, but the situation was not optimistic.

Listening to these introductions, Zhao Pu's brows furrowed and he pondered.

Zhang's layout is impeccable, and the beacon tower can detect the enemy situation in time, and then attack quickly. It's just that in history, Guan Yunchang arranged the beacon tower and did not guard against Lu Meng, and Zhao Pu did not think that the beacon tower could prevent Zong Han.

Collecting boats, cutting down trees, and preventing the Jin army from crossing the river may seem clever, but in fact they are very poor. In today's era, the Yellow River has serious soil erosion, which requires a large number of trees to strengthen the embankment, but now that it is cut down, it will only exacerbate the soil erosion, and the flooding of the Yellow River will intensify again.

There are also Jurchens who cross the river without boats and the like, but with sheepskin rafts. The so-called sheepskin raft is a unique means of transportation for some steppe tribes, and the sheep are slaughtered from the neck. Then the whole skin is plucked off completely, and after being dried in the sun, it can be worn as a fur coat in normal times, and when it comes to crossing the river, it only needs to be tied to a shelf, and it becomes a simple raft. The small sheepskin raft can sit on four or five people with a dozen sheepskins, and the large one can have hundreds of sheepskins, which can carry more than a dozen people, and can replace the boat.

"The Jin army crosses the river, it is easy for people to cross the river, it is rare for war horses to cross, without war horses, the combat effectiveness of the Jin army will be reduced by half!" Zhao Pu said, "If you want to let the war horse cross the river, the only way to build a pontoon bridge or freeze the Yellow River is to freeze!" ”

Zhang said, "After the failure of forcibly crossing the Yellow River several times in succession, the Jin army gave up the forced crossing, but mainly feints. Behind the feint, there must be a real attack, maybe the Jin army will take advantage of a dark night to destroy the beacon tower, and then in a relatively narrow section of the river, build a pontoon bridge, let a part of the cavalry cross the river, the number does not need to be too much, only 5,000 iron cavalry, it is a huge disaster! ”

Jin Jun's plan to cross the river was not mysterious at all, and with Zhang Suo's knowledge, he easily detected it.

However, there are hundreds of river sections suitable for building pontoon bridges, which are far away from each other, and it is not known which section of the river the Jin army will choose to build pontoon bridges, and it is impossible to achieve effective defense in terms of troop deployment. Overnight, enough for the Jin army to build a pontoon bridge on a section of several hundred meters and successfully allow 5,000 cavalry to cross the river.

As long as 5,000 iron horsemen crossed the river, relying on erratic and rapid movement, the Song army was powerless to pursue and could only let the Jin army's iron cavalry gallop across the territory.

Looking at the map, Zhao Pu was silent.

The atmosphere was a little depressing, and both of them were silent.

"Bianliang may hold on?" Zhao Pu asked.

"Yes!" Zhang replied.

"How long?"

"I don't know! Bianliang is easy to defend, but here, here ......" said Zhang Suodao, pointing to Luoyang, Jinghu and other places in Henan, "It may not be possible to hold here!" ”

Zhao Pu was silent.

"What's the solution?"

Zhang said: "No! Relying on the speed and sharpness of the iron cavalry, the Jin army can intersperse, cut, and encircle at will, constantly attack Henan, Jinghu and other places, and attack weak cities, while our army is dominated by infantry, which is not as fast as the iron cavalry, and is powerless to rescue. Maybe our reinforcements have arrived, and the Jin army has already captured the city, or ambushed our army on the way to rescue! ”

Zhao Pu had a headache, this was almost an unsolvable problem.

"Then why do we stubbornly guard Bianliang, not attack Hedong, Hebei and other places, and copy the back road of the Jin army?" Zhao Pu looked at Hedong and Hebei first, and his eyes flashed with a fine light.