In the face of the endless harassment of the enemy, he finally realized the enemy's tired tactics, and he had to change his strategy, slow down the march, stop and walk, and let the soldiers rest during the march, but the Tang army still continued to harass, so that the soldiers of the Tubo army could not rest normally, and the soldiers were sleepy.

Two days later, the army crossed the Xiaoqing River, and on the other side of the river there was a wide view of large meadows, which were famous pastures in Yazhou, with a radius of hundreds of miles.

Compared with the woods, the Tubo army prefers the grassland, and it is difficult for the enemy to attack them again, and he was about to order the soldiers to rest in place, but there was no chance, and a patrol came rushing and shouted: "General, the main force of the enemy army has been found in front, it is ten miles away!" ”

Shocked by the heat of his cheeks, he hurriedly took a closer look to the east, and sure enough, he saw a black line in the distance.

He immediately ordered: "The whole army is in formation, ready to fight!" ”

Although he also knew that the soldiers were in trouble, he had no choice now, and now resting could only be a dead end, and he could only fight the enemy with strong spirits.

20,000 soldiers quickly assembled into two large phalanxes, the density is very high, just like two iron hammers, even the cavalry may not be able to take advantage, this is also determined by the characteristics of the Tubo army, they use short weapons, so close combat is more beneficial to them.

The 45,000 army led by Guo Song slowly approached, and a few miles behind the Tubo army, Pei Xin led 5,000 cavalry also appeared on the west bank of the Xiaoqing River, cutting off the retreat of the Tubo army.

He had already understood in his heart that the previous harassment of the Tang Army was because the main force was waiting for them, and he was really uneasy in his heart, and he had an ominous premonition in his heart, and this battle might be more than auspicious.

At this time, the adjutant general Lun Boren suggested: "I am afraid that the enemy army has already poured in, we can ask Yazhou City for help, as long as Shang Dongzan sends 10,000 troops to attack the Tang army from behind, we all have a chance to win." ”

On the cheeks sighed, "It's still a hundred miles away from Yazhou City, I'm afraid it's too late." ”

On Boren was silent, and it was indeed too late in time.

On cheek fever, he said: "Shang Dongzan knew that we were coming, and it stands to reason that he should send troops to meet us, so we may still have a glimmer of hope." ”

Several generals nodded, the general's analysis was reasonable, and he turned around and shouted to the soldiers: "In the past hundred years, our ancestors and the Tang army have fought hundreds of battles, basically our victory, soldiers, show your courage, don't let our ancestors be ashamed, even if we die on the battlefield, it is our glory, for the glory of our ancestors, this battle will be won!" ”

The blood of the 20,000 Tibetan soldiers was ignited, and he roared loudly, "This battle will be won!" This battle will be won! ”

Three miles away, the 45,000 army waved the flag, the war horses neighed, the hooves were ready to run, and they were constantly strangled by the cavalry, under a black dragon red flag inlaid with gold edges, the commander Guo Song calmly watched the morale of the Tubo army become high, and he slowly ordered: "The first army and the second army, attack!" ”

"Whew-"

A low horn echoed in the wilderness, and two 5,000-strong archers rushed out of the ranks, one on the left and one on the right, like two long dragons, sweeping towards the Tibetan army.

.........

At the head of Yazhou City, Shang Dongzan, the main general of Tubo, looked at the west with a solemn expression, he had received a letter from the flying eagle of Tubo before, and knew that 20,000 reinforcements had set off, and in terms of time, 20,000 reinforcements should arrive in these two days.

Maybe it's because of the concern that chaos is chaos, 20,000 reinforcements are too important to him, 20,000 reinforcements join, Yazhou's troops will reach 50,000, Yazhou will be completely stable, and they will have a foundation in Bashu, so as to achieve the first stage of Zampu's strategic goals.

Now Shang Dongzan is very worried that the Tang army will block this army, of course, as the expectation of cheek fever, he can send troops to receive reinforcements, but Shang Dongzan also has his difficulties, the army is less, it is easy to be killed by the enemy outside the city, and the army is too much, and it is easy to be annihilated by the enemy's concentrated forces.

So Shang Dongzan was in a dilemma, and at this time, the deputy general said in a low voice: "General, we also have cavalry, it is better to send a cavalry team to investigate the situation first, if the Tang army really wants to concentrate troops to annihilate our reinforcements, then we must send a large army to the rescue." ”

Shang Dongzan glanced at him and asked, "How many troops do you think is appropriate?" ”

"If it is surrounded, I feel that it is appropriate to send 20,000 troops, the number is too small, and it is easy to be annihilated by the enemy."

"What if the enemy just flipped a shot? When we send 20,000 troops to meet us, the enemy will concentrate their forces to attack Yazhou City, do you think 10,000 troops can hold it? Or the enemy concentrates his forces to encircle and annihilate our 20,000 receiving troops. ”

On Dosang was a little unable to answer, and said for a while: "So I said that I would send a team of cavalry to check the situation first, understand the situation thoroughly, and then make a decision." ”

Shang Dongzan nodded, although this suggestion will delay the timing, but for now, it is indeed the most reasonable.

He immediately ordered: "Order five hundred cavalry to go out of the city to inquire about the situation!" ”

The south gate opened, and a 500-strong Tibetan cavalry galloped out, and the war horses were flying, rushing to the west.

The Tang army scouts immediately discovered the movements of the Tubo army, and Zhang Lingyun immediately made a decision to leave 1,000 cavalry to continue to monitor Yazhou City, and he led 4,000 cavalry to outflank the trail.

.........

On the battlefield, the drums were like thunder, 10,000 archers galloped around 20,000 Tibetan soldiers, and arrows rained down on the enemy.

Guo Song calmly watched the attack of the archers on the battlefield, and when he saw that the time was ripe, he ordered: "Whirlwind cannon attack!" ”

The whirlwind cannon generally refers to a kind of giant crossbow or trebuchet that can be moved, carried by camels, first appeared in the battle of Anxi, the Guo Song army used a mobile trebuchet carried by camels, a total of two parts, the main body of the trebuchet and the bottom plate, weighing more than 1,000 catties, in fact, it is a small trebuchet, its advantage is that the assembly is fast and simple, it can be disassembled into two pieces at ordinary times, carried by two camels, and can be used directly on the bottom plate when needed.

But the disadvantage of this trebuchet is also obvious, that is, it is too small, the range is short, and it can shoot about 20 catties of fire oil balls and the like, and it will be very difficult to shoot iron and fire thunder.

At the beginning of the year, the Ordnance Supervision Department developed a new type of mobile trebuchet, which is also called a box trebuchet, as the name suggests, is installed in the carriage, a bit like the missiles carried by trains in later generations.

The carriage is very large, five zhang long, two zhang wide, up to one zhang, there are four pairs of giant wheels on both sides, weighing up to 6,000 catties, need four camels to pull, this time generally put into four such van trebuchets, all dismantled and transported into Bashu, assembled in Mingshan County.

At the sound of Guo Song's order, sixteen camels pulled four van trebuchets appeared, which were divided into two teams, escorted by 3,000 cavalry, and came to both sides of the Tibetan army.

Hundreds of soldiers quickly unloaded the trebuchet for placement, generally a trebuchet takes half a day to assemble, this kind of van trebuchet only needs a tea time to complete the placement, the wheels are removed, the carriage is placed on the ground, the carriage board is opened, and four large trebuchets appear.

The soldiers of the firearms battalion creaked and pulled the trebuchet from the throwing rod, placed four large iron fire mines on the throwing pockets, and the horn sounded, and the archers who were galloping and shooting retreated to both sides, exposing the large trebuchet behind them.

Taken aback by the heat of his cheeks, the enemy was about to throw stones, and he shouted: "Squat, shield defense!" ”

The 20,000 Tibetan soldiers crouched down and raised their shields to defend themselves against the boulders, but they were not confronted with boulders, but with a large firearm large enough to plunge them into hell.

'Bang! Boom! Boom! Boom! With four loud bangs, four large iron fire mines emitting green smoke were thrown into the dense enemy cluster, and the Tang soldiers also fell down with their heads to the other end, blocking their bodies with their shields.

"Boom! Boom ......."

Four large iron fire thunderbolts exploded in the Tubo cluster, the explosion was earth-shattering, the smoke of gunpowder was filled, the flesh and blood were flying, and thousands of quenched iron nails inside were scattered in all directions, countless Tubo soldiers were shot, and even a few trebuchets were full of broken nails.

The horses from miles away were so frightened that they roared back and kept clattering, and although the soldiers had blocked their ears and those of their horses, the powerful explosion still shocked the horses.

When the smoke of gunpowder had just cleared, the second round of iron fire and thunder of the Tang army came, and four large iron fire thunders exploded in the crowd, and the sound of strong explosions, howls of despair, and screams before death were all drowned out by the thick smoke of gunpowder.

After two rounds of explosions, the van trebuchet began to retreat, and the Tubo army was still in a state of extreme shock, the team had already been blown up, and several large craters appeared in it, full of stumps and broken arms, blood and brain plasma mixed together, bloody corpses piled up, and there were still some undead soldiers struggling in a pool of blood.

More soldiers collapsed to the ground in fright, not daring to move, extreme fear enveloped their hearts, they were frightened stupid, completely collapsed, two rounds of eight large iron fire thunder caused nearly 10,000 casualties.

Guo Song waved his sword and ordered: "Attack!" Surrender is not accepted. ”

"Woo-woo-"

"Boom! Boom! Boom! Boom! ”

The trumpets whimpered, the war drums shook the sky, and tens of thousands of Tang cavalry shouted and killed the Tubo army several miles away.