At noon, the 50,000-foot cavalry Liao army finally arrived at Baosai City, Baosai City is the only way to go to Hejian Province, a wide official road directly through the county, both sides are wilderness, cavalry can gallop directly through the wilderness, infantry can barely be, but the baggage cart is not good, the baggage cart must take the flat official road.

This is also the main reason why the Song army is stubbornly defending the big city, the border big cities are the necessary places for each strategic passage, if the Liao army is only cavalry south, then they don't need to consider the official road, but then they can't attack the city, and it is difficult to get supplies, but if you bring infantry baggage, then they have to face the big city on the official road.

The Liao Army's West Route Army commander Yelu Kunping rode on a horse and looked at Baosai City from afar, he frowned, captured this city, he was afraid that he would have to pay the price of thousands of casualties, Yelu Kunping also felt a big head, before the Song army was against their two armies, fierce battles, they could quickly retreat if they lost, and if they won, they would take advantage of the victory to chase and kill, and now the Song army is shrinking the tactics, it seems that they have a little bit of a nest, but they have no way to mouth, and they have to gnaw hard bones.

"Command the army to camp on the spot!"

Yelu Kunping gave an order, and 50,000 Liao troops were stationed in a large camp ten miles away from the county seat.

The Liao soldiers set up tents and buried pots to cook, but they couldn't even find firewood for cooking, and the woods were swept away, so they had to find some shrub branches, or dig out the roots of the trees and chop up the firewood.

The Liao army did not bring a camp fence, that thing was too bulky to carry, and it did not use spears, and the camp covering an area of thousands of acres was surrounded by a circle, at least 200,000 spears were needed, and the national strength of the Liao State declined, and there were no so many weapons reserves.

The Liao army simply dug a trench and sent a large number of ranger scouts, which were spread around the camp to prevent the Song army from approaching the Liao army camp with manpower defense.

All night, the Liao army camp was brightly lit, thousands of craftsmen with the army installed splicing siege weapons overnight, the siege weapons of the Liao State were taught from the Great Song Dynasty, but the precision was relatively rough, far inferior to the Great Song Dynasty, their most important siege weapons have three categories, one is the siege ladder, including the cloud ladder and the ordinary siege ladder and the reverse siege ladder, the other is the battering ram and trebuchet, and the other is the nest car and the bridge car, this time the Liao army did not carry the battering ram and trebuchet, the nest car did not carry, it was too inconvenient.

They carried a large number of siege ladders and eight bridge cars, the bridge cars are used to deal with the moat, each bridge car is loaded with more than a dozen row of bridges, with seven or eight zhang long pine wood side by side nailed, weighing thousands of catties, in the battle directly put the row of bridges to the moat, the role of the moat is invalid.

The bridge car is a large car that carries this kind of row of bridges, and each bridge car carries more than a dozen such row bridges, which are pulled by four strong oxen and followed in the baggage team.

The next morning, the low war drums began to beat loudly, 10,000 Liao infantry went to war, 5,000 cavalry with them, the cavalry was responsible for suppressing the city with crossbow arrows, the Liao State in the capture of Youyun Sixteen Prefectures, due to the large number of Han craftsmen, their metallurgy and manufacturing armor level also improved by leaps and bounds, the armor and weapons created are no less than the Song army, plus their powerful cavalry, the combat effectiveness of the Liao army is still far stronger than the Song army, otherwise the Song Dynasty will not humiliate the signing of the Tanyuan Alliance and the subsequent additional coins.

Otherwise, Fanning would not have given up the large-scale battle that he had been promoting, and instead put forward the idea of a national strength war.

This time, the infantry brought by the Liao army was mainly Han and Bohai people, and the cavalry was Khitan and Xi people.

10,000 Han Liao soldiers were assembled three miles away from Dongcheng, and behind them, 5,000 Xi cavalry and archery troops were ready, and with the earth-shattering war drums rumbling and beating, 10,000 Liao troops took the lead in launching an attack on Xicheng in Baosai County.

The 8,000 Song army and 10,000 militia on the head of the city are also ready for battle, the army is composed of 4,000 archers and 4,000 spearmen, in addition, 500 bed crossbows are also installed on the west city, which can fire three big arrows at the same time, each big arrow is three feet long, and the range is 500 steps, which is the farthest range weapon of the Song army.

Forty large trebuchets were also installed behind the soldiers, which could throw 50-pound boulders to 200 paces away, but with the development of firearms, the Song army no longer threw stones, but threw paper-shell fire mines, wood-shell fire mines, and porcelain shell fire mines.

Before the advent of the iron shell fire thunder, the porcelain bottle fire thunder is the most powerful, a porcelain bottle weighs about 30 catties, after the explosion, rely on the porcelain piece to splash and hurt people, but the killing range of this porcelain fire thunder is very small, up to five meters around, and the explosion will fall to the ground and shatter if it is late.

In the campaign against the Western Xia during the reign of Song Renzong, this kind of porcelain fire thunder has been further developed, the Song army has filled hundreds of quenched iron nails in the porcelain bottle, and the iron nails fly to injure people and horses, and the killing range has been increased to more than ten meters.

Before the advent of Iron Fire Thunder, the evaluation of firearms in the Song army was chicken ribs, flowery, good-looking and useless, it was better to throw rolling stones, which could directly smash more than a dozen people.

But it wasn't until the advent of the iron fire thunder that there was a revolutionary change in firearms, a lightning strike, the sound boomed for dozens of miles, and all the powder was within a hundred steps, and the Song army relied on dozens of iron fire and thunder to scare the three Buddha Qi countries out of fear, raise the flag and surrender.

And today, the iron fire thunder will be put into the Songliao battlefield for the first time, and I don't know what the effect will be?

The 10,000 Liao troops lined up in a long phalanx and approached in the direction of the city, getting closer and closer, and entering the 500-step line, Cao Wenjing shouted loudly: "Bed crossbow fire!" ”

Five hundred bed crossbows were fired at the same time, and 1,500 large arrows flew up and shot towards the dense Liao army.

Although the first 10,000-strong Liao army was all Youzhou Han Chinese, on the battlefield, either you die or I live, and the Song army will never show mercy to the other party because he is Han.

1,500 large arrows rained down into the enemy's ranks, and the Liao soldiers greeted them with huge shields, but the shields and armor could not block the powerful bed crossbows, and the Liao soldiers fell down with arrows one after another, and more than 500 people were killed and wounded in one round.

The Song army's bed crossbow opened the prelude to the war, and the Liao army's war drums suddenly intensified, 'Boom! Boom! Boom! Boom!' The rapid sound of drums urged the Liao army to charge.

The Liao army also picked up speed and ran towards the city wall with a shout, and there were hundreds of siege ladders and bridges in between.

The Liao soldiers gradually entered within three hundred steps, and a general whispered to Cao Wenjing: "General, use iron fire thunder!" ”

Cao Wenjing saw that the enemy army was relatively sparse and the concentration was not dense enough, so he shook his head and said: "Iron Fire Thunder will be used later, and the porcelain bottle Fire Thunder will be projected!" ”

The size of the porcelain bottle fire thunder is like a fish tank, round belly and thin neck, weighing thirty or forty catties, they have been loaded with forty trebuchets, each trebuchet is operated by thirty people, using a winch-type throwing method, the fire rope is ignited, when it burns to the mouth, the trebuchet is launched with a bang, forty porcelain fire mines are shot above the head of the Liao army, and the Liao army has already dealt with the Song army's firearms, they raise their shields to protect their vital points, squatting on the ground, let 'bang! Bang! Explosions rang out around him, crackling nails striking the shield.

After a round of explosions, the soldiers of the Liao army stood up one after another and continued to run towards the city wall, a round of porcelain bottle fire and thunder exploded, and the casualties were less than three hundred, which was far inferior to the bed crossbow, so the Song army regarded them as chicken ribs.

The Liao soldiers had already rushed to within a hundred paces.

"Archer launch!"

Cao Wenjing gave an order, the drums sounded, and thousands of arrows were fired in unison from the city to the city.

The Song army deployed a total of 12,000 archers, in addition to the 4,000 archers on the head of the city, there were also 8,000 militiamen in the city, they stood inside the city, raised their bows and fired arrows outside the city, and the arrows flew over the city and shot overwhelmingly outside the city.

The range of the bow is not far, the key is that the arrow itself is very heavy, the arrow is streamlined, extremely sharp, shot into the air by the parabola, as if falling from more than a dozen floors, top-heavy, the tip of the arrow is downward, the lethality is extremely strong, even if there is a shield and leather armor, it is difficult to resist, this is also the most powerful weapon of the Song army to defend the city.

Suddenly there were screams and wails under the city, and a piece of Liao army fell like an arrow in wheat, and at this moment, five thousand archers flew like a dark cloud, and they galloped outside the city wall, riding on horses and throwing arrows at the head of the city, the arrows were accurate, and the arrows of the soldiers continued to fall from the head of the city.

Although the Song army was equipped with 100,000 cavalry horses from Kunzhou, nearly eighty percent of the 100,000 cavalry could not ride and shoot, and the strength of the Liao cavalry was very different, and the cavalry could not be trained in a few years, but needed long-term continuous training and honing.

But the same Kunzhou war horse equipment, the 30,000 cavalry of the Northwest Army is much stronger, they take the road of heavy cavalry, train 10,000 heavy cavalry, use heavy cavalry to deal with light cavalry, and use group impact to deal with scattered enemies, it is still very effective.

The Song army on the side of the city wall squatted down one after another, dodging the arrows under the city, at this time, dozens of rows of bridges were erected on the moat, the iron nails at both ends were driven into the soil, and a group of Liao soldiers rushed up and set up dozens of siege ladders on the head of the city.