Early the next morning, the defenders came out of the city of Daliang and launched an attack on the cofferdam of the Qin army.

After a period of fierce fighting, among the first fleets of the Dai army to rush to Daliang, seven large warships were destroyed, while 15 medium-sized warships and ship-carrying ships were destroyed, and more than 300 rafts of various kinds were destroyed. Now the defenders still have more than 80 ships of various kinds and more than 1,000 rafts.

However, the losses of the Qin army's sailors were greater, all kinds of warships were sunk and destroyed nearly 300 ships, nearly 1,000 rafts, and now the Qin army still has nearly 200 ships and more than 2,000 rafts, although from the size of the fleet, the Qin army is still more than double the defenders, but they only dare to hide in the dock and dare not fight. You can only rely on the shore-based forces on the cofferdam to fight the defenders.

The main weapon that the Qin army relied on was the trebuchet, so during this time, the Qin army built a total of more than 500 trebuchets, although compared with the trebuchets directly transported from the Qin State, the trebuchets made in the battlefield were very rough, and the range was greatly reduced, generally only between 150 and 200 steps, and could not project large stones of more than 100 catties. In the previous period, the Qin army was destroyed a total of more than 300 trebuchets, and now the Qin army still has about 800 unscrupulous aircraft, about half of the old and the new.

Of course, the number is not a few, but now the battle line that the Qin army has to defend is too long, and there are only more than 200 trebuchets on each face, so it is impossible to fill the cofferdam with trebuchets, and it can only be called temporarily.

The main attack surface of the Dai army was still in the northeast, with the remaining 26 large warships as the vanguard, divided into two roads, and launched an attack on the cofferdam of the Qin army at the same time, the warships were lined up horizontally on the water, and the pottery missiles were fired at the cofferdam of the Qin army one by one, and after landing, a large fire was immediately ignited. Although the Qin army hid under the cofferdam, the Dai army also adjusted its shooting and switched to a large arc projectile, and as a result, the pottery missiles crossed the cofferdam, and many of them still fell into the Qin army's formation, and many Qin soldiers were burned by fire, screaming and chaotic. Although the Qin army also had a few trebuchets, the number was too small, and the trebuchets were also afraid of fire, so they could not suppress the warships of the Dai army.

After seeing that the warships suppressed the Qin army, the rafts of the defenders immediately started one after another, killed the cofferdam, and started a fierce battle with the Qin army.

Although the defenders had also attacked from the city many times before, the number of people was not too many at a time, and generally only about three or four hundred rafts were dispatched, and the army was within 10,000 people, but this time it was poured out, and all the warships and rafts were dispatched, with a total strength of nearly 30,000 people. And yesterday after a mobilization on the plateau, at this time everyone's morale was high, and they were ready to fight with the Qin army, so they were all extremely hardworking, and the Qin army was hit by a long-range attack by the army, and the formation was already in chaos, and the defenders were killed all over the ground, and the blood stained the cofferdam.

Because the defenders dispatched a large number of troops this time, the Qin army guarding the cofferdam was unable to delay the defenders and wait for reinforcements to arrive. After defeating the Qin army, the defenders worked together to dig the cofferdam, digging several gaps in a row, and suddenly the water poured out of the gap like a spring, flowing out of the cofferdam.

By the time the Qin reinforcements from the nearby camp arrived, the water had already flooded the area of dozens of zhang square, although the Qin army had built a drainage ditch, but the capacity of the drainage ditch was limited, and it was too late to drain the stagnant water, and the defenders were still expanding the gap to let more water flow out.

In the past, the defenders attacked, and after the reinforcements of the Qin army arrived, the defenders would generally retreat immediately, or resist for a while, and they would also retreat, and the Qin army would fill the gap that was caught by the defenders, and the two sides would almost become an invisible tacit understanding.

But this time the situation was completely different, although the reinforcements of the Qin army came, but the defenders had no intention of retreating at all, but immediately started a fierce battle with the reinforcements of the Qin army, all of them were extremely brave, swords, guns, halberds and other weapons, slashed and killed the Qin army, and even many defenders killed the cofferdam. And the warships also stayed on the shore and continued to launch long-range strikes against the Qin army.

The Qin army was indeed a little caught off guard, but was killed by the defenders and retreated again and again, and he was very depressed in his heart, why didn't these guys talk about the rules today, isn't this a mess?

And the soldiers on the cofferdam side continue to dig the cofferdam, expand the gap, so that the gap is bigger and bigger, more and more water flow, as far as the eye can see, after the fierce battle between the two sides, outside the cofferdam, it is almost a vast water, and there are many soldiers are fighting fiercely in the water at this time.

The two sides fought fiercely for almost an hour, the defenders not only did not retreat, but also fought more and more bravely, occupied the cofferdam of nearly 300 years, and at the same time dug more than ten gaps of different sizes on the cofferdam, two of which were even five or six zhang wide, the water was like opening the flood gate, surging to the cofferdam outward, within a radius of several miles, all were flooded, and the water potential has spread to a Qin army camp closest to the cofferdam, rushed into the camp.

Wang Jian received the report, but also surprised, originally early in the morning Wang Jian received the report, knowing that the defenders launched a surprise attack on the cofferdam, although this is the first time that the defenders launched an assault on the cofferdam after the collapse of the city wall, but Wang Jian did not care too much, thinking that this is just the same routine assault as before, not straight to make a fuss, and after the collapse of the wall of the Liang City, the water irrigation of the Qin army finally began to bear fruit, so Wang Jian's psychology was somewhat relaxed, plus the siege of the Liang for more than eight months, Wang Jian was actually a little tired, and he didn't even have the interest to go out and have a look.

I didn't expect that this time the defender's attack would be more fierce than that time, there is a momentum of completely breaking the cofferdam of the Qin army in one fell swoop, if the cofferdam is broken at this time, then the hard work of most of the past six months will be in vain, and Wang Jian is also difficult to resign, the light is to lose his official resignation, and the heavy will be ambushed and imprisoned, and even beheaded, although Qin Wangzheng has previously issued an edict to pardon the guilty general, but Wang Jian is not sure that Qin Wangzheng will pardon himself, after all, in order to conquer the Great Liang and destroy the Wei State, The Qin State can almost be regarded as using the power of the country, and this is a battle that cannot be lost.

Therefore, Wang Jian couldn't sit still, and immediately ordered to urgently mobilize troops and trebuchets to support, and he must kill the defenders, and at the same time personally go out of the camp and rush to the battlefield to supervise the battle.

After Wang Jian boarded the chariot and rushed to the battlefield, Wang Jian couldn't help but gasp, only to see that outside the cofferdam, there was a vast water, floating in the water with the corpses of countless Qin soldiers, chariots, trebuchets and other things, floating with the waves, and there were many points of fire. On the cofferdam, more than 10 gaps of various sizes have been dug up, and the water continues to gush out of the gaps like bursting the embankment.

Above and below the cofferdam, the Qin army, the Dai army, and the Wei army were carrying out fierce killings, and many soldiers were half-soaked in the water for fierce battles, and there were more than ten burning trebuchets or bed crossbows on the cofferdam. Although the Qin army of the two nearby camps had rushed to help at this time, the scope of the water was too large at this time, and the Qin army could not attack the cofferdam from the front, so it could only attack the defenders from the cofferdam on both sides, so that the attack surface was small, the troops could not be deployed, and the advantage of the Qin army's large number of soldiers could not be played, and within the cofferdam, the warships of the Dai army were still constantly firing their special fire oil clay pots to the Qin army from the water, which caused the Qin army to catch fire one after another, and there were countless casualties.

When Wang Jian saw it, he also regretted it in his heart, and he couldn't imagine that his momentary negligence had made the situation almost out of control now. However, Wang Jian must have been a person who was accustomed to all kinds of scenes, and immediately issued orders in succession to command the Qin army to fight.

First of all, he ordered to push the trebuchets onto the cofferdam and attack the warships of the Dai army, regardless of the losses, and must suppress the long-range attack of the Dai army, and at the same time ordered Xin Sheng to lead the naval army to attack and entangle the warships of the Dai army, so that the warships of the Dai army can no longer support the soldiers on the shore, and they can also make a detour from the water to attack the defenders on the cofferdam; Then Wang Jian ordered Li Xin and Yang Duanhe respectively, and led the Qin army to kill along the cofferdam from the left and right, and must repel the defenders and recapture the cofferdam, and at the same time assigned a part of the soldiers to carry sandbags to catch up and immediately fill the gap, because the gap in the cofferdam is too big now, if you want to wait until the cofferdam is recaptured and then come to fill the gap, I am afraid it will be too late, you can only fight while filling the gap.

Sure enough, with Wang Jian's command, the actions of the Qin army also became orderly and organized, and one by one trebuchets were pushed onto the cofferdam and threw large stones at the warships in the water, and the warships also had to respond to the battle, concentrating the oil clay pots to fight the trebuchets.

Although many trebuchets were hit by the clay pots and burned, the trebuchets of the Qin army always held on, and many warships were also hit by the stones, injured and damaged. And in this way, all the warships of the Dai army were also contained, and they launched a long-range attack on the Qin army without flawlessness.

After there was no threat of long-range strikes by the warships of the Dai army, the Qin army was also greatly invigorated, so they waved their weapons one after another, and launched an attack on the defenders along the cofferdam. And left behind a large number of corpses, blood gushing out, staining the water surface around the battlefield red.

At the same time, there were many Qin soldiers carrying sandbags, ignoring the fighting between the two sides, trying their best to rush to the edge of the gap, throwing the sandbags into the gap, and then quickly running back to carry new sandbags to leave the gap, and the defenders of course would not let the Qin soldiers fill the gap lightly, and waved their weapons to intercept the Qin soldiers who filled the gap, and some Qin soldiers were killed halfway, fell into the gap, and filled the gap with the sandbags, and some Qin soldiers fell into the water and were immediately swept away by the turbulent water.