Songtsen Gampo could do the first grade of junior high school, and Hou Junji could do the fifteenth grade. He used coercion and inducement to recruit a group of Tibetans who were not determined enough to put on armor and let them rush to the front. He also used provocation to make Tuyuhun's army Following behind to supervise the battle, it looked like there were heavy casualties, but in fact the Tang army suffered no losses. Seeing that the cannon fodder was almost gone, but what Liu Yuan predicted had not happened yet, even Hou Junji became anxious. "Xiao Yuan, what is going on?" The hot-tempered Old Demon King Cheng couldn't help but ask Liu Yuandao. Li Jing also frowned and said, "Xiaoyuan, wasn't there an accident?" "Boom!" "Boom, boom, boom" "Boom" While he was speaking, there was a huge explosion like thunder on a dry day. It rang out, and then a series of explosions rang out one after another. The sound was so loud that it was deafening. Everyone subconsciously looked towards the source of the sound, and saw a very shocking scene for a while: on the wall of Luoxue City, explosions continued to sound. The power of the explosion blew the people on the city wall into bloody pieces. The scene of being blown away and torn into countless pieces in the air, turning into a rain of blood, looked shocking. The huge explosive force formed a powerful shock wave, just like the autumn wind sweeping away the yellow leaves. After countless explosions, there were few people standing on the wall of Luoxue City. This power is so terrifying. No one understands why the knotted gunpowder suddenly exploded. No one can guess that the power of destruction is so amazing. In just a few breaths, the Tibetan soldiers on the city wall have been "cleaned away", and the sky is full of smoke. It was raining blood, and the severed limbs and arms, twisted knives, fire guns and other objects were flying everywhere. It was such a strange scene even under the scorching sun. Still makes people feel chilly. "Well, that's it. There were no accidents." The overall situation was decided, Liu Yuan breathed a sigh of relief and said with a smile. "Whatwhat's going on?" Old Demon King Cheng stuttered a little. Hou Junji's face turned red with excitement at this time, and he shouted loudly: "Quick, come on the demolition team, blow up the city gate for me. Everyone is ready. Once the city gate is broken, everyone will follow the tasks assigned last night. Come to Luoche City and capture Songtsen Gampo alive." "Yes, General." Everyone agreed loudly when they heard what was going on. Thousands of Tibetan elites were wiped out in an instant. The four hundred guns that had just been obtained were turned into a pile of scrap metal in the explosion, creating an extremely rare vacuum in defense. Tang Jun, who had been prepared early in the morning, rushed forward upon hearing this. Support the cloud cart, lift the long ladder, and launch an all-out attack. The Tibetan general Zuo Ru and Qiongbo Bangse, who commanded on the city wall, were certainly not spared. This sudden incident probably brought the morale of the Tibetan soldiers to the bottom. After Hou Junji gave the order, Li Jing, Niu Jinda, and Qin Qiong rushed out immediately without caring so much. Leading his soldiers to charge, it was important to seize the credit. Liu Yuan had something on his mind and just wanted to leave. Unexpectedly, he was caught by the old Demon King Cheng who had a weak hand: "Liu Yuan, where are you going?" "Well, it's a bit urgent." When Liu Yuan saw it was Old Demon King Cheng, he couldn't help but said in surprise: "Uncle Cheng, everyone is rushing Go attack the city and seize the victory, why do you still stand still? " "That's none of your business. Uncle Cheng is unlucky and is in the second echelon. Besides, there is a large population in Tubo City. Even if the city is breached, it will take a long time. We don't have much time, so why rush? It's not good for your hundreds of people to get involved in the melee of hundreds of thousands of people so early. If you want to take advantage, you have to take it easy," Old Demon King Cheng said angrily. Liu Yuan had no choice but to bow his hands to Old Demon King Cheng and said, "Yes, what Uncle Cheng said is true. My nephew has remembered it." "I ask you, is this exchange plan your idea? Give it to you. Uncle Cheng, tell me, why do those gunpowders explode automatically? Don't say you don't know, otherwise you won't be able to leave. "It all happened very strangely. First, he agreed to the exchange very generously, and Songtsen Gampo was also very careful. After checking again and again, it was clear that he did not believe that the Tang army would give such good conditions. It could be seen from the clothes and armor of the Tubo gunmen that they were Songtsan Gampo's personal guards and they also sent elite soldiers. Under the protection of a strong general, it is unlikely to attack here. Besides, there are still many unreasonable things. Old Demon King Cheng's appetite has been whetted to death for a long time. Now that he has seen such a magical moment, how can he give up without understanding it? . Knowing that there was a problem with the prisoner exchange this time, Demon King Cheng thought that Liu Yuan had secretly snatched it back or had someone to help him, but he did not expect such a result. It seemed that it was impossible not to explain clearly. Liu Yuan smiled and said without hiding it: "Actually, my nephew did some tricks on those gunpowders." Old Demon King Cheng asked quickly: "What tricks? That's not right. , that fan will come again and againI checked, and there¡¯s nothing wrong with it. Oops, kid, can¡¯t you finish the sentence at once? They all made me, Old Cheng, anxious to death. " "I added a little bit of white phosphorus to the gunpowder," Liu Yuan explained with a smile: "This is a magical substance that can spontaneously ignite at room temperature. Well, by the way, the general should have heard of will-o'-the-wisps, which are used to bury dead people. In some places, sometimes one or more fires suddenly appear at night, which is actually the spontaneous combustion of white phosphorus. This white phosphorus can spontaneously ignite at about 40 degrees Celsius. Of course, different environments vary slightly. "Uncle Cheng, you have also noticed that the terrain of Tubo is high. There is an ancient saying that high places cannot survive the cold. The higher the place, the lower the temperature. In this way, the conditions for spontaneous combustion of white phosphorus can only be equal to the hottest One day, my nephew conducted an investigation and found that in late June, at this time, the temperature was the highest. This is the reason why my nephew chose these times to trade. If you are more careful, you will find that my nephew set the inspection time in the morning. In fact, They were afraid that the temperature would rise after the sun came out, which would increase the chance of an accident. The choice of Xiangwu when attacking was also based on temperature considerations. Of course, these conditions were not enough. " After saying so much in one breath, Liu Yuan was a little tired. He took a few breaths and continued: "When there are more people, it is better to fight. If you stay in the same place, the temperature will rise. And the most important thing is One point is fire. We know that a fire blunderbuss needs to be lit with a fuse. It is difficult to ensure that it can be ignited in time. It is best to use a small torch or incense. In order to ensure the fire, a fire will be set up next to it for easy access. However, with so many people, a fire is not enough. Although the fire is far away from the gunpowder, it can increase the temperature within a certain range. It is still enough. Several factors add up to reach the conditions for white phosphorene. Once it spontaneously ignites, it will ignite the gunpowder. If a powder barrel explodes, it will cause a chain reaction. This is the whole plan. " Old Demon King Cheng was dumbfounded. When he woke up, he looked at Liu Yuan differently. Although many things sounded half-understood, Old Demon King Cheng understood what was going on even by listening and guessing. He secretly felt in his heart Sigh: What is a genius? This is a real genius. He tricked you without any negotiation and killed people invisible. I finally figured out why I deliberately let Tubo take advantage of me, why I set the date in late June, why I exchanged the Xiangwu attack in the morning, and why Liu Yuan. So confident, it turns out that Songtsen Gampo fell into Liu Yuan's trap from the beginning, and the reason why Hou Junji went crazy with Liu Yuan is here, oh, by the way, when this batch of gunpowder was delivered, Hou Junji. The party appointed Liu Yuan to keep it, and he was clearly asked to make firewood into the gunpowder, and put the thing called white phosphorus into the gunpowder. Yes, that must be the case. Not only did it save the people of the Tang Dynasty, it was a success. The emperor's benevolent reputation also wiped out thousands of the most elite and loyal personal guards under Songtsen Gampo in one fell swoop. This was an amazing achievement. No one expected that the notorious Zanpu personal guards who were galloping across the Tubo Plateau would , unexpectedly fell into the trap of a rising star of the Tang Dynasty twice. Last time, he was careless and failed to protect the Tubo princess, but this time, he was completely fooled. "Fortunately, you are not the enemy of the Tang Dynasty." Old Demon King Cheng patted his heart. Said: "Otherwise, we old brothers might not even know how they died. " In the eyes of Old Demon King Cheng, Liu Yuan has become a monster. Fortunately, he is not an enemy, and Liu Yuan's novel tactics and endless clever ideas make Old Demon King Cheng feel like a hero in his twilight years. Although he was still in his prime, he had a feeling in his heart that his own era was gradually fading away. This era belonged to rising stars like Liu Yuan, Guan Yong, and Hou Jun. Liu Yuan quickly said modestly: "I don't dare. These uncles are all famous generals and heroes in the world. If compared with these uncles, my nephew will probably be beaten badly. " "Hey, you know what I mean. "Old Demon King Cheng said with a smile. Although I knew Liu Yuan was being modest, I still felt good when I saw him respecting me so much and understanding the rules. "No matter how powerful he is, why don't he respectfully call himself uncle, huh? , By the way, when Jingyan enters the door of Liu Mansion, they will kiss each other. There was a "boom" and another loud noise. Liu Yuan and Old Demon King Cheng looked out and saw Luoxue City. The city gate was blown away, and groups of Tang troops rushed in with a loud killing sound. In front of the powerful gunpowder, the two copper-covered doors of Luoshu City seemed to be made of paper, and were quickly destroyed. Exploded and shattered, the Tang army, which had been preparing for a long time, rushed in to kill the enemy, gain promotion, and make a fortune. The hard stone mountain could be easily blown away. "Killing is nothing." " "Brothers, make great achievements today. " "Capture Songtsen Gampo alive" "Kill him" The Tang army was as powerful as a rainbow and opened fire.Beginning to launch the most violent assault on the capital city that represents the Tubo regime, preparing to take down the largest city in Tubo in one go. "Okay, the city of Luoshou has been destroyed, and it's time for me to set off. Liu Yuan, in the chaos of the army, has no eyes for swords and arrows, so he can protect himself." After getting the answer, Old Demon King Cheng did not forget to warn him before leaving. "Thank you, Uncle Cheng. I wish Uncle Cheng a quick success, capture the enemy's leader, and win the first prize." Old Demon King Cheng didn't respond, laughed a few times, then turned around and walked away. Liu Yuan looked at the smoke-filled Luoche City. He thought about it for a while, then quickly came back to his senses. He walked out of the tent, jumped onto his bloody horse and chased the wind. He flicked the reins and rode. Jue Chen left, and the Weiwei army that had been assembled early in the morning pursued him without hesitation. However, the direction of this elite force is not to Luoche City, where swords and swords are shining (To be continued)