The mortars quickly came into range, and they fired interdicting fire at the onrushing Roman auxiliaries, trying to cut off the Romans.

The auxiliary legions consisted of Roman overseers to oversee battlefield discipline and prevent anyone from escaping.

Therefore, the miscellaneous infantry of these auxiliary regiments, holding large shields and withstanding the artillery fire of the Han army, also had to continue to charge, at least they had to throw their own grenades on the heads of the Han army.

The soldiers of the Han army shot the enemy calmly and calmly as if they were training to shoot targets, kneeling in the front row and standing in the back row.

While fierce fighting was raging on both flanks, the Roman legions in the center and the 7th Brigade of the Han Army had also advanced within range of both sides, and both sides stopped advancing at the same time and raised their guns to shoot at each other.

The tactics used by the Romans were the same as those of Marcus's legions that Ma Chao encountered, with large shields on the ground, and Roman infantry hiding behind large shields, aiming and shooting.

The Han army did not have any cover on this plain, and there was no time to dig bunkers, so they could only test their courage and shoot at the Romans, fortunately the Romans' archery skills were not as good as the Han army, and the hit rate of the front-loading guns was also lower.

Chen Zhi transferred the mortar battalion, and when the shells blew up the Roman shield, the Han soldiers took the opportunity to shoot, and without the cover of the shield, the number of Roman casualties immediately soared.

However, the Romans were not the masters who were waiting to be killed, and soon from the Romans' array, the sound of "dong" and "dong" also sounded, and more than a dozen shells fell from the sky and fell into the ranks of the Han army.

Fortunately, the soldiers of the Han army were trained accordingly and were very calm in the face of shells, and they lay down on the spot to avoid the fragments of shells flying around.

These shells immediately attracted the attention of Chen Zhi, Ma Chao, Lu Kang and others, and the Romans also had mortars?

Sima Yi reminded that the rebels should have captured the mortar units supported by the Han army to the royal guards, perhaps these mortars.

Chen Zhi could only order the 8th and 9th brigades on both flanks to speed up the attack, clear the Roman auxiliaries blocking their advance, and flank the Romans in the middle together.

The Han army on the left and right flanks attacked forward, and the corresponding auxiliaries were also charging, and the two sides soon approached within 30 zhang, only to see that both sides threw grenades, and the Romans also kept a lot of javelins, causing a lot of casualties to the Han army.

The infantry of the Romans was rarely equipped with bows and crossbows, but almost two javelins, which was the original infantry equipment of the regular Roman legions, and even the short spears in their hands could be thrown as large throwing guns.

Now the Roman infantry was armed with muskets and grenades, and the javelins and short spears were eliminated, and only these auxiliaries remained.

After the grenade, the two sides had already collided, and the Han army fought with the Roman servants armed with bronze daggers with bayonet rifles.

At this time, on the contrary, the bayonet prevailed, and although these Roman servant armies were also standard Roman legions with standard bronze short swords and large square shields, their individual combat skills were not enough to give full play to the advantages of weapons.

What's more, they did not learn the strict phalanx of the Romans, and they lacked cooperation with each other, but allowed the Han army to gain the upper hand.

None of these legions in Rome were fully manned, most of them were only about 4,000 men, and even more so the auxiliary legions, who wanted to leave their homeland and serve for such a long time?

So soon, the Han army on both flanks pushed back the two Roman auxiliary legions, and gradually formed a flanking situation against the two Roman regular legions in the middle.

And this time the commander-in-chief of Dhamgan's Roman legions was Lucis. Corneli. Scipio, a veritable prominent family of the Roman Empire, represented the interests of the Roman Senate.

His position in the army of the Roman Empire was second only to His Majesty the Emperor, and as for his command level, he was quite passable, at least in a few battles with the Sabbatarians, he did not suffer.

He saw that the two regular Roman legions were beginning to lose the upper hand, and in addition to sending the artillery at hand to support them, he also sent the Sabbath legion on the right flank of the Romans.

Aldaban IV sent a total of 80,000 reinforcements, and all but 20,000 remained in Dhamgan, and the other 60,000 were deployed on the right flank of the Roman legions.

The 60,000 Sabbation army was dispatched, and most of the Sabbath army had been reloaded with muskets, so they marched in a very dense and very neat procession.

The dispatch of the rest army alarmed Lu Kang, and the 60,000 rest army accounted for almost half of the troops on the opposite side, and it seemed that the enemy's commander wanted to speed up the pace of the war, so he would accompany him to the end.

Lü Kang ordered the third division of the Haotian Army on the left flank, the second cavalry division, and the second infantry division to attack together, and the three divisions of the Han army could definitely deal with it.

At this time, the Roman commander Lucis had already ordered the whole army to be dispatched, and sixteen legions all launched an attack on the Han army opposite, and the entire front advanced towards the Han army.

The three divisions of the Han army on the left flank had already exchanged fire with the rest army, and the two sides were firing at a distance of 200 zhang.

Except for a small number of hoplites holding shields to cover in front, the rest of the people did not have other cold-weapon troops, and there was no need to charge to the front of the Han army, and the two sides only needed to carry out the line formation that was called "line up to shoot" by later generations.

This is also the most important combat method adopted by the two armies that are also equipped with firearms on the battlefield after entering the era of firearms.

However, this time the three divisions of the Han army only lined up in two rows, the first column turned out to be shooting in a lying position, and the second column was in a kneeling position, adopting the method of alternate shooting.

Whether it is a lying position or a kneeling position, the bomb area is much smaller than that of standing shooting, so although it is a counter-fire and the range is sufficient, it is that the rest man falls a lot, but who told the rest man to use a front-loading rifled gun, and he cannot take a lying position.

Moreover, when the field artillery battalions of the various divisions of the Han army were put into attack, the courage of the rest people was rapidly weakened, although they had used mortars before, they had never felt the shelling of large-caliber field artillery.

The salvo of field artillery is much more powerful than mortars, and the craters are several times larger!

Soon the front of the Sabbatarians began to waver, and they began to retreat.

At the same time, the Han army and the Roman legions had been connected in all directions, and the Romans put two cavalry legions behind the line, all of which were infantry legions in front, while the Han army was not so troublesome, and the Han cavalry dismounted and became infantry.

The mortar battalions of the Han army were put into the attack, but the Romans also had the support of hundreds of mortars, which were a little less than the Han army, but they could still affect the attack of the Han army.

It turned out that the secret weapon that Caracalla sent to the Roman legions in Dhamgan was the Roman-made mortars that the experts of the Roman Academy of Sciences had successfully copied, and the first batch of 100 was delivered, as well as a large number of shells.

Although there is a little gap in accuracy, power and range, the principle is the same, and it is enough to pose a huge threat to the Han army and break the Han army's monopoly on artillery.

As for the field artillery used by the Han army, the Romans were also experimenting with full horsepower, and with the successful experience of imitating muskets, mortars and grenades, the difficulty of imitating field artillery was not as great as imagined.