Although the shield array can effectively defend against the attack of the archers, it can only play the role of frontal defense, the range of the archers is not only limited to the front, they can use large-angle projectiles, to attack the men and horses of the rear team of the Sima army, unless the Sima army can do a shield per person, it is difficult to reach this pervasive rain of arrows.

The archers and cavalry fired thousands of arrows, and the scene was naturally magnificent, the arrows in the sky were like flying locusts, covering the sky, and the originally clear sky became a little dark, and Sima Jun kept people falling.

Chen Qian has no choice, after all, the shield can't be a person, many soldiers without a shield are easy to get arrows, but the solid shield array composed of sword and shield soldiers can effectively resist the attack of the archers, which makes Chen Qian very excited, using the spear array to fight against the light cavalry, and the shield array to deal with the archers, this is simply a perfect match, as long as the Sima army can skillfully switch the defensive formation, it can fundamentally prevent the cavalry of the state.

Deng Ai saw that the Sima army was lined up again, and the attack effect of the archers was greatly reduced, so the archers retreated slightly, giving up the positions of the two flanks, and allowing the light cavalry to attack again.

Although the shield array has an effective defense against bows and arrows, but for the impact of the light cavalry, it has become very chicken, the light cavalry horses are fast and sharp, and a knife can split the wooden shield of Sima Jun into two halves, without a shield, there is only a ring head knife left in the hands of the sword and shield soldiers.

Not to mention that the ring head knife is not as long and sharp as the sabre of Bingzhou, even if it is the same weapon, the cavalry of Bingzhou can easily bring Sima Bing and people to split it in half by relying on the inertia generated by the high-speed gallop of war horses.

After the light cavalry rushed up, the shield array was rushed to pieces, Chen Qian hurriedly ordered the shield soldiers to withdraw, and the pikemen to go up again.

In fact, the change of formation must be changed according to the attack method of the state cavalry, the spear formation can be aimed at the light cavalry, and the shield formation can effectively deal with the archers, but if it is reversed, the two formations will become vulnerable.

What Chen Qian is doing now is how to make appropriate switches between the two formations.

However, the speed of the Bingzhou cavalry far exceeded that of the infantry, and they charged over like a whirlwind, and when they got closer, Sima Jun could identify that type of troops, and at this time, it seemed a little hurried and panicked to switch formations.

Of course, the main reason is that Sima Jun lacks the practice of formation conversion, these two formations to respond to the enemy are still improvised by Chen Qian, how to make these two formations skillfully convert, to deal with the different attack methods of the Bingzhou cavalry, it really makes Chen Qian more headaches.

Tens of thousands of people back and forth interspersed with transposition, this is not a simple matter in itself, in addition to the command and coordination must be consistent, the requirements for the deployment of soldiers are also relatively high, only after all the personnel of the entire formation are in place, this formation can play the best effect.

But now the attack of Bingzhou is like a fish in water, their light cavalry and archers take turns to fight, constantly impacting the position of the Sima army, encountering the formation of mutual restraint, immediately avoiding without fighting, encountering a formation that can be restrained, then rushing up to slash and kill, random arrows are fired, killing the Sima army is difficult to resist.

On the Sima army's side, they were exhausted, they didn't know which army of the Bingzhou Army would attack, so they could only rearrange the formation according to the situation, so the lagging defense mode naturally made them suffer heavy losses in the face of the attack of the Bingzhou army.

Chen Qian is also helpless at this point, although both formations have advantages in dealing with the enemy, but the disadvantages are also obvious, such as not being able to switch freely, and every round of attacks by the state army will make them face great losses.

Don't look at the number of casualties every time, but the offensive of the state army is continuous, and the number of casualties adds up repeatedly, and the number is very considerable.

Chen Qian was helpless, he had no way to compete with the Bingzhou army, so he could only fight and retreat, and at the same time asked Sima Shi to send some reinforcements over to strengthen the defense capability of the rearguard troops.

Sima Shi is also very headache now, and the mobility of the Bingzhou Army is too strong, they not only attack the broken troops, but also use roundabout outflanking the left and right flanks of the Sima Army, so that the left and right wings are also facing the risk of being attacked, so that Sima Shi does not dare to take out the defense of the two wings to reinforce the rear team, once the Chinese army is directly exposed to the attack range of the Bingzhou Army, the entire army may collapse.

The previous method of shrinking the strength of Sima Shi is still the most effective, in this situation surrounded by wolves, scattering troops is tantamount to self-defeating, and 100,000 horses are hugged, even if the periphery will be bitten by wolves, but at least it can ensure that the main force will not suffer too much loss.

Now Sima Shi's goal is to hold on to Anyi, as long as he can enter the city, this embarrassing situation of being chased by the Bingzhou army and not having the strength to fight back can be improved.

It's just that the continuous attacks of the state army have made Sima Jun tired of coping, and the speed of the march has been greatly reduced, and the journey of more than 200 miles has not yet arrived after four days, which makes Sima Shi anxious.

Every time this field battle drags on, countless Sima soldiers will die in battle, and the continuous attrition will not only be a loss of soldiers, but also make Sima Jun more tired.

This is obviously not a good thing, and the attack method used by the state army now is obviously a nuisance, and their attack does not use the kind of way of going all out and killing people at once, but using that kind of roundabout attack, every attack seems to be very casual, take a bite and leave, and the loss caused is not too big, but if you bite down this bite, Sima Shi will also be in pain.

This offensive method of the Bingzhou army was naturally arranged by Cao Liang, and with the current attack ability of the Bingzhou cavalry, it is not impossible to launch a large-scale general attack and destroy the Sima army at once.

Of course, this kind of attack can end the battle as quickly as possible, but the 100,000 Sima army is not made of paper, if the trapped beast is still fighting, the combat effectiveness that erupts in the desperate situation of life and death, and the state army will also pay a great price for it.

Of course, Cao Liang didn't want his army to suffer heavy losses when attacking the enemy, so he asked the troops participating in the front line not to kill Sima Jun at once, but to consume their strength little by little, and drag them down little by little, just like a cat and mouse.