Only one night later, the zombie tide that had already retreated to the south reappeared near Huai'an, and continued to advance north at a uniform speed of more than ten kilometers per hour. Although the coalition air force emptied the ammunition depot in Xuzhou, it did not play a role in the forward momentum of the zombie tide.

But the Air Force soon discovered two major changes, the scale of this zombie wave seems to have expanded, and no one can estimate how much more it has. Ten thousand and one hundred thousand are obvious, one hundred thousand and one million are also obvious, but one million and three million are not very obvious, three million and five million are almost the same in the eyes of people.

And the zombie tide is no longer one share, but divided into two shares, east and west, and the number of each share is more than yesterday. The eastern strand was moving north-eastward along the Changshen Expressway, and when the air force reconnaissance plane discovered it, it had already passed through Guanyun County and would enter the urban area of the port in more than two hours.

The western group still rushed to the north without hesitation according to yesterday's path, and has now passed through Xinyi, only 70 kilometers away from LY, and it is expected to be visible to the naked eye in five hours.

The Great War was about to break out, and the positions of the Union troops were also busy. The soldiers were divided into several groups and demolished the buildings in the firing range overnight, and those that could not be demolished were blown down with explosives.

This is the experience accumulated over the years of fighting zombies, the more zombies you encounter, the more you need to broaden your shooting horizon, complex buildings are a good helper for street battles with humans, but they are a huge obstacle to killing zombies.

A reconnaissance plane of the "Dongdong Dongdong......" slowly flew over from the south, and a few white smoke bubbles came out of the fuselage, and then three signal flares burst into the air.

"It's all ...... All ......" In an instant, sharp whistles sounded one after another on the ground, and the soldiers who were still busy among the ruins of the buildings suddenly threw down their work and ran towards the fortifications to the north.

The zombie tide is coming, and that small plane is not an ordinary reconnaissance aircraft, but an artillery correction machine. It is informing the artillery in the rear that the target has entered the firing zone and can begin test firing.

"Tong ...... "......In less than a minute, before the front-line soldiers had fully entered the fortifications and hid, a burst of muffled thunder sounded in the north.

"Whoosh...... Whoosh ...... Rumble...... Boom, boom, boom, boom......" Soon, a sharp howl passed overhead at high speed, and then was drowned out by a series of more powerful explosions, and dozens of tall columns of smoke rose from the south.

"This is a 122 howitzer, don't be afraid, when it fires, the target is more than ten kilometers, to say the least. Come on, smoke a cigarette slowly, don't hold on to the trigger when you shoot for a while, it's useless to hit the zombie's body, aim at the head and hit again.

Don't be afraid to be slow, it's better to kill one than to injure ten. Don't be afraid of more, where there are more zombies, there will be artillery to take care of, and there are mortars and heavy machine guns when the distance is close, we just need to fight slowly one by one.

Hey, I said you guys listen too, and when we fire, shout at each other, don't be stupid and hit each other. The brain understands it, you have to use your brain to fight, and it's not good to be bold! ”

The soldiers on the battlefield heard the explosion, some were shrinking their necks, some were stretching their necks. These are all recruits who have not experienced much actual combat, and the real veterans will not watch any excitement at this time, and they are all checking guns and bullets at the end. There are also some enthusiastic people who take the opportunity to teach the recruits practical skills of fighting zombies.

However, there is not much time left for the recruits to study, and the learning environment is a bit noisy. As the smoke of the explosion rising from the south got closer and closer, the mortars of the company and battalion began to speak.

Although they do not move when firing shells, they are far less powerful than large-caliber guns. But the smoke and fire like small flowers could be seen very clearly, and it was only a kilometer or two away from the position.

At this distance, a black line could already be seen slowly approaching, and from time to time a few fires would flicker, and a brief circle of gaps would appear around the firelight, but it would be bridged in an instant, without affecting the speed of progress, let alone reducing the number visible to the naked eye.

"Dada...... Da Da Da ...... Syllable...... Dadada......"

Just as the recruits watched the approaching black wave, their noses sweating and their arms trembling, a rhythmic tapping sound sounded not far behind them. The heavy machine gun fired, but there were a few fainter crunch sounds, and some soldiers couldn't help but pull the trigger under the pressure of great fear.

"Brother Zhuang, what's on the top of their heads?" The soldier who inadvertently misfired was immediately slapped by the veteran next to him, and although his fingers left the bolt, his eyes were still fixed ahead, and he keenly noticed the abnormality.

At this time, the zombies have come to about 500 meters, which can be distinguished with the naked eye, and if the eyes are good, they can see the details clearly, such as many zombies holding some objects in front of their faces with both hands, or simply putting some kind of object on their heads.

"Phew...... Lao Tzu may not be able to go back this time! Look at what to see, aim! "Actually, you don't need a recruit to say that a veteran can see it, and I don't know what it is, but I can guess what it's for.

What else can you do, it has to be bullet stopper. As for whether holding it in front of the face will affect eyesight, if anyone asks so, the veteran will be a slap in the face! It's been so many years, and anyone who still thinks that zombies have sight should be bitten to death.

Although it seems a bit funny to hold a piece of wood to block bullets, and it doesn't necessarily work, the veteran knows in his heart that in the previous confrontations between humans and zombies, the reason why he has been able to win most of them is not only to rely on the sharpness of his weapons, but also to the blessing that the zombies are too stupid and can't use tools.

Don't look at zombies, you know that blocking bullets with things is only a small progress, but with a huge advantage in numbers, it adds up to a big disadvantage that can turn the tide of the war for humans. In the past, it could be killed with one bullet, but now it may be two, and the delay and the exponential consumption of ammunition are enough to change the final result.

"Shoot, shoot!" But no matter what the veterans think, the battle will still be fought. With the orders of the company commander, platoon commander, and squad leader in turn, on the seven or eight kilometers of defense line on the north side of the city, dense gunfire suddenly rang out like bursting beans.

The zombie forward, who had already rushed to a distance of two or three hundred meters, seemed to have hit a reef, and the momentum was paused, and they fell down in pieces. But the one who did not fall down still walked unhurriedly, stepping on the corpse of his companion and getting as close as possible to the target.

"All for all...... "At this distance, the power of the heavy machine gun is exerted to the extreme, and almost every bullet misses.......

Even if you can't accurately hit the zombies' heads, you can penetrate the bodies of several zombies like a sugar gourd, and tear apart the bones and tissues along the way, causing a large number of zombies to die or lose their mobility.

"Grenade preparation...... Throw! "Even under the blockage of such dense firepower, there were still small groups of zombies stubbornly rushing to a distance of less than thirty meters from the defense line.

At this time, due to the firing range, in order to avoid accidentally injuring one's own people, the heavy machine gun could no longer exert 100% power. If you want to stop the zombies, you can only rely on the rifles and grenades in the hands of the soldiers.

"Boom, boom, boom......" With a series of explosions, the zombies who were too close were injured by shrapnel and knocked down by the shock wave. Before he could get up, another grenade flew over, followed by a rifle shot, and finally held the gap.

And this situation, since the opening of the battle for about half an hour, has continued to appear on the defensive line, and then it has been constantly made up. Occasionally, there are a few places that are not blocked in time, and they are too close to the zombies.

At this time, the platoon commander and company commander will blow the whistle, shout slogans, order the soldiers to lie down on the spot, listen to the roar of the heavy machine gun behind them, let the bullets fly overhead, and wait for the zombie group in front of them to be swept down in pieces, and then get up and shoot according to the commander's order.

Not only did the battle on the ground quickly heat up, but the blue sky was not idle. There were always three or four transport-bombers hovering at different distances from the battlefield, trying to find the location of the living corpses by means of thermal imaging equipment.

The reconnaissance planes flew lower, and they were also loaded with a belly of modified mortar shells and spun around, and once they found a suspicious heat source target, they immediately threw down two of them.