"General, the person we sent to contact Zhang Chun has returned, and Wuhuan has also sent a messenger over." Xu Xian walked into Deng Mao's tent and said excitedly. "Oh, bring people in." Deng Mao said to Xu Xian. Xu Xian said yes and turned around and walked out of the account. After a while, Xu Xian came in with the Wuhuan envoy. "Under the order of Qiu Liju, I came to meet the general." "The envoy is polite, I don't know if Shan Yu has any objections to cooperation." Deng Mao asked the Wuhuan envoy. "General Deng, we just said that it is okay for him to send troops, but Youbeiping and Yuyang County must be classified as the habitat of our people, and the grain and grass of our army must be provided by your army." The envoy said to Deng Mao. "The front is not a big problem, but we don't have much left about grain and grass, I don't know if we can provide less, it is better to have us to support Sancheng, you see how it is." Deng Mao said to the Wuhuan envoy. "General Deng, you have to know how much risk we have taken in sending troops, and if the emperor of the Han Dynasty exterminates you, and then comes to us to settle accounts with the Autumn Queen, how can we resist. You must provide the food and grass, and our sons are fighting for you. "Please also ask the envoy to see clearly, now that the Han has no time to take care of himself, what energy do you have to take care of your affairs, as long as our great sage and good teacher break through Luoyang and capture the emperor at that time, not to mention the two counties of Youbeiping and Yuyang, that is, the entire Youzhou, our great sage and good teacher can be classified as the habitat of the entire clansman of your tribe." Deng Mao now needs Qiu Liju to send troops to help, so he is not afraid of making random promises on paper. As long as Qiu Liju sent troops to cause trouble in Youzhou, Deng Mao's goal was achieved. At that time, the imperial court will definitely send troops to suppress it, so as to reduce the pressure on the Yellow Turban Army in other places. After some bargaining, in the end, the Yellow Turban Army provided 30% of the grain and grass for Qiu Liju's soldiers and horses in exchange for Qiu Liju's promise to send 100,000 troops from western Liaoning to attack Youbeiping. The cooperation was agreed to end, and Deng Mao prepared wine and food in the tent to receive the Wuhuan envoy, and also celebrated the official alliance between the two families. It's just that Deng Mao is a little happy now, he doesn't know that Tang Zheng is going to exterminate it first, and then deal with the invasion of Wuhuan.

"Childe, what is this black thing? Why in a bottle? Zhang Chao asked Tang Zheng, who was pouring a black liquid into the bottle. This liquid can be burned, I call it fire oil, and once ignited, it is not easy to extinguish with water. "This is crude oil, Tang Zheng also sent people to look for it at the beginning of the construction of the mountain, and it took so long to find it. Tang Zheng asked people to send a batch over, and he also knew that the effect of direct combustion of crude oil was not as good as after refining, but he didn't have time, now in front of him was Deng Mao's 20,000 army, Tang Zheng now had less than 7,000 soldiers in his hands, and he had to face the upcoming Wuhuan invasion, so Tang Zheng had to use this unrefined crude oil. Tang Zheng poured the liquid into a clay vase and then plugged it with a cloth and left a section outside, after doing this, Tang Zheng asked Zhang Chao, "Have you seen it?" Zhang Chao nodded, and Tang Zheng asked him to try it first. Although Zhang Chao's operation is slow, it is still decent. Zhang Chao also packed one under the guidance of Tang Zheng, and Tang Zheng took Zhang Chao and the bottles to find Cheng Pu.

"Big brother, I'll show you a new weapon." Tang Zheng said to Cheng Pu as soon as he was in Chengpu's room. At this time, he found that Cheng Pu was not the only one in the room, Cheng Hu, Cheng Mo, Wu Yifan and others were all there. "Since everyone is here, I'll call them one by one. Let's try out the effects of this weapon first. Tang Zheng said to everyone, and everyone looked at Tang Zheng curiously, not knowing what he had come up with. When the group came to the open space, Tang Zheng asked people to prepare sand in advance, and at the same time clean up the dead grass around them. After everything was ready, Tang Zheng took out the fire fold and lit a bottle and threw it out, only to hear a bang, the bottle was torn apart, and the crude oil inside spilled out, and a raging fire ignited wherever the crude oil fell. Everyone was shocked when they saw this, and then they all turned their heads to look at Tang Zheng, Tang Zheng smiled slightly and turned around and nodded to Zhang Chao beside him, and then Zhang Chao walked towards the fire with a bucket of water. Water was poured on the fire, and instead of being extinguished, a dragon burst out. Everyone looked at Tang Zheng in puzzlement, only to see that Tang Zheng didn't know where to take a shovel and shovel the surrounding sand to the fire before extinguishing the flames. "This combustible liquid I call fire oil, which is flammable and not easy to extinguish, and you have seen that it cannot be extinguished with water, but only with sand. Containing this clay bottle will also produce an explosion, and the sound of the bang is the sound that occurs after the explosion. Fire oil is lighter than water and can float on the water, even on the surface of the water can be burned. Tomorrow we are going to have a decisive battle with the opposite side, and with our current strength, even if we win, I am afraid that it will be a big loss, so I have prepared this weapon, I call it the fire oil bottle, and you can see the method and effect of using it, so you know how to use it. Tang Zheng said to everyone. Everyone looked at Tang Zheng blankly, obviously not recovering from the shock just now. After a while, Cheng Pu spoke: "You mean to equip the soldiers with this weapon tomorrow?" It's just that this kind of fire oil you said is flammable and not easy to extinguish, what if it gets contaminated with our soldiers? "Big brother, each oil bottle has a cloth soaked in fire oil as a fire starter, as long as you throw it out before the fire burns the cloth, it will not pose a threat to yourself. That's why I'm bringing you together today, not only to show you the power of the oil bottle, but also to show you how to use this weapon. Tang Zheng first said to Cheng Pu, and then turned to everyone and said. After everyone will use this weapon, they will go back to teach their captains and then let them go down to teach ordinary soldiers, everyone will first come to see how I use it, pay attention to the case that you are not ready to use it, the fire oil bottle must be away from the fire source because the fire oil bottle is flammable, and you have also seen that it is not easy to extinguish it with water after burning, so the place where this fire oil bottle is stored must be away from the fire source in the future. ”

After Tang Zheng finished explaining, he began to teach everyone how to use the oil bottle and what to pay attention to during use. Tang Zheng saw that everyone basically knew how to use it, so he said: "Now the number of fire oil bottles in our country is not very large, so I decided to let some soldiers equip it first, the main one is that this kind of thing called fire oil is not easy to collect, and when there is more fire oil in the future, we will popularize this weapon in the whole army." I think tomorrow we will tie this bottle of fire oil to the bolts of the bed crossbow and light it, and then use the bed crossbow to send it to the enemy's army. As long as the oil bottle explodes in the enemy formation, then he will be buried in the mouth of Zhu Rong even if he is a god. Then we will let the soldiers who are about to attack from behind the enemy also equip them with this weapon to cut off the enemy's retreat, and I want this to become a place for Deng Mao's bones. Everyone looked at Tang Zheng and shuddered in unison, feeling that Tang Zheng was so terrible for the first time. Tang Zheng also saw everyone's expressions, so he spoke again: "I know that although this will hurt Tianhe, but now that Wuhuan and Zhang Chun and others are about to attack, we can only destroy Deng Mao as quickly as possible in order to have enough time and manpower to deal with the next Wuhuan invasion." "Everyone also knows that if you keep more strength now, you will have a better chance of winning the next war with Wuhuan. Tang Zheng didn't say anything when he saw that everyone understood the truth, and turned around and left with Zhang Chao.

"General, a large group of people have gathered on the opposite side and are coming towards us." The soldiers ran into Deng Mao's camp in a panic and said to Deng Mao. "What? The enemy went on the offensive? They are crazy, just with his 7,000 men and horses, they want to eat my army of more than 20,000, even if his Tang Zheng's foot soldiers are fierce, it is only two or three thousand people, I just use people to kill him. Deng Mao said with some disbelief. Although he still has more than 20,000 people under his command, he still knows the details of his own family, otherwise he would have sent troops to destroy Tang Zheng's men and horses, and then he still needs to contact Wu Huanzhi. "Send the order to go down and prepare for battle, I want to see why he Tang Zheng ate these horses under me, if the tiger doesn't return me, I really think I'm a sick cat, I want him to come back today." "Yes, my subordinates will arrange it." After saying that, the soldiers turned around and walked out of the account.

"Zhang Chao, is everything ready?" Tang Zheng asked Zhang Chao beside him. "Childe, everything is ready, the six-bed crossbow is also in place, and the soldiers of the Modao Battalion are also ready, just wait for the fire to be extinguished, we will kill it." "Okay, let the brothers who operate the bed crossbow not be busy for now, and wait until they are closer to the enemy before firing, so that the cavalry and the brothers of the Modao battalion are ready to attack at any time." The war horse walked behind the Modao battalion with a crossbow, and when it was still eight hundred paces away from the enemy camp, the opposite side also assembled a large army, and then the Modao battalion separated from both sides to make way for a way. Six bed crossbows are lined up, and the crossbow guns with the thickness of the arms on the bed crossbows make people's scalps tingle. Deng Mao also saw this kind of bed crossbow for the first time, he didn't expect him Tang Zheng to have this kind of weapon, you must know that he didn't see Tang Zheng use this kind of weapon last time in Wuzhong, it seems that he is ready to eat us. Deng Mao secretly thought that although this weapon looks good, there are only six of them, and this can't scare me Deng Mao. Deng Mao waved his hand, and his soldiers and horses rushed towards the opposite side like arrows off the string.

Tang Zheng saw that the opposite side was charging, so he asked the crossbowmen who were operating the bed crossbow to be ready to wait until the enemy rushed within three hundred steps to fire the crossbow gun. The bed crossbow has been improved to fire ten bolts in bursts, and each bolt is hung with more than a dozen bottles of fire oil, which is enough to form a wall of fire. Seeing that the enemy rushed into a distance of 300 paces, the crossbowmen lit the oil bottle with a torch and activated the crossbow string, and the crossbow bolt shot towards the enemy with a sound of breaking through the air. This sudden change caught Deng Mao off guard, why didn't he expect to suddenly fall into the sky. He was also stained with some oil, which was splashed on him when the bottle exploded. He hurriedly put out the flames, but he couldn't put them out, which made him shocked, what the hell was this thing that couldn't be extinguished. His soldiers were also suffering the same result as him, and Deng Mao desperately retreated when he saw that the situation was not good, preparing to retreat to the camp and make a decision again. At this time, Cheng Pu, who was behind the enemy camp, also arrived, he lit the fire oil bottle in his hand and threw it at the enemy's camp tent, and his soldiers saw that Cheng Pu took the lead in lighting the fire oil bottle and also lit the fire oil bottle according to Cheng Pu's appearance and threw it to the enemy's camp, and suddenly the enemy's entire camp became a sea of fire. Deng Mao, who was in the distance, saw the camp on fire, and knew that it was over, and now he couldn't care so much, so he might as well escape first. Tang Zheng had already arranged for manpower to block the enemy's possible escape route, and he didn't send people to chase and kill, but only let people block the way. The fire lasted for half an hour as the crude oil burned out, and now the entire battlefield was filled with thick smoke, and the smell of burning black coke everywhere gave off bursts of meat. Tang Zheng held back his retching and ordered his soldiers to start killing those enemies who were not affected by the fire.

"Childe, the war is over, the enemy's 30,000 troops have been wiped out, Deng Mao was also burned to death by the fire, and now the soldiers are digging a pit, preparing to bury the burned enemy." Zhang Chao said to Tang Zheng that Tang Zheng left the battlefield when the fire first started, and he knew that as long as the fire was together, the outcome of this battle would be doomed, and Deng Mao would not be able to escape even if he planted his wings. "Well, how are our casualties, the wounded soldiers are healing." Tang Zheng said to Zhang Chao. He was not in a good mood, and there was no joy at all after the victory. Anyone who saw the people who were alive just now being burned to charred by the fire felt uncomfortable, not to mention that this order was given by Tang Zheng himself. After Tang Zheng finished arranging everything for Zhang Chao, he went back to the city, and after returning to the city, Tang Zheng locked himself in the room and saw no one. Everyone also understood Tang Zheng's feelings, war is like this, either you die or I die, and being merciful to the enemy on the battlefield is cruel to yourself. Everyone didn't know how to persuade Tang Zheng, so they had to follow him, hoping that he could figure it out himself.