Zuo Liangyu was able to become a powerful warlord in the history of the late Ming Dynasty, not blindly relying on speculation to drill camps, on the contrary, his military talent was not bad, and his strategy of attacking Kaixian this time was undoubtedly very wise.

He divided more than 80,000 officers and soldiers into several ways to attack Kaifeng, and it was like opening a seamless net for a day to open a net to Kaixian County, only if Yang Ming was still in Kaixian County, no matter how slippery he was, it would be difficult to escape from Kaixian.

But this wisdom is based on the premise that Yang Ming is really in Kaixian, and this time, Yang Ming did not stupidly stay in Kaixian County and wait for him, and Li Guangtian, who was responsible for defending Kaixian, did not stupidly wait for him to attack in Kaixian County, and there were soldiers on both sides of the mountains around Kaixian County who climbed upward, on one side were the soldiers of the eighth battalion of the Han Army, and on the other side was Zuo Liangyu's army of several roads.

There were two or three battalions in each of the several armies of the left army, and each battalion had more than 120 officers of all ranks, cavalry or infantry, and the total number of soldiers such as heralds and miscellaneous servants was about 6,000, that is to say, there were about 20,000 people in total, but when this multi-route army composed of 20,000 people entered the deep mountains around Kaixian, it was like a roll of yellow sand falling into the sea, and it was diluted by the dense mountain forests and could not see the slightest human figure.

Similarly, the soldiers of the eighth battalion who had already been ambushed into the mountains also completely disappeared in the sound of the tiger roaring ape, when Xu Ensheng's troops under the command of Zuo Liangyu entered the Qinjia Cliff not far from the Mandarin Duck Village, and when they had a bird's-eye view in the sky, they found that several pine and cypress giant trees on the top of the Qinjia Cliff were shaking violently on the top of the mountain, like a banner shaking in the wind, while the surrounding trees were still standing still. If you are careful, you will find that a boulder on the top of the cliff of the Qin family, which has been carrying soil and trees for several years, is slowly falling.

"General, the left army is coming!"

Xu Ensheng's left army would not have thought that the cliff boulder above their heads would fall in an instant, on the contrary, they were running tirelessly through the mountains at this moment, because as long as they reached the county seat of Kaixian County first and captured the thief leader Yang Ming, they would receive a huge reward.

However, obviously, they were destined to have no chance with the reward, and Li Guangtian shouted: "Release!" I heard a loud bang, like a thunderclap in the sky, and dozens of pounds of explosives buried in the pre-made stone crevices by the gunpowder factory of the Han Army Ordnance Institute blew down the entire cliff top in an instant.

According to Qi Jiguang's "Ji Xiao Xinshu" in the record of ** and production process, it can be known that the ** preparation of the Ming Dynasty has been almost the same as the modern standard military **, so the gunpowder expert Jia Kui of the Han army wants to improve and improve to a large extent, so he decided to find another way under Yang Ming's suggestion, and used the method taught by Yang Ming to extract a small amount of sulfuric acid and nitric acid and find a way to make nitrate fiber, and use this to the development of gunpowder. At first, because the nitrogen content was too high, it could not show obvious results, so the plan to turn gunpowder into explosives was put on hold for the time being, after all, Jia Kui, as the person in charge of the gunpowder factory, could not be immersed in scientific research.

But when Li Guangtian, a chemistry enthusiast who became a monk halfway, learned about it, he insisted on getting all the relevant research in this area from Jia Kui, and I don't know how he did it, in short, the nitrogen content went down, and the gunpowder became explosives, but the amount was not much, and there was still a long way to go if it was to be mass-produced, and only enthusiasts like Li Guangtian could make dozens of catties day and night. These 19th-century chemical products are priceless treasures in this era, and it is no wonder that Li Guangtian said that he had prepared a generous gift for the Zuo Army, and it was dozens of catties as soon as he gave it away.

In order to better defend the county seat of Kaixian, Li Guangtian spent a month walking around the mountains in the entire Kaixian County, thinking about it after three before choosing here, the boulder on the top of the Qinjia Cliff is facing the only mountain road that enters the Mandarin Duck Village, and this mountain road is just in the valley, once the boulder will roll all the way down the valley, and the boulder on the top of the cliff has been loosened due to the mudslide, plus Li Guangtian ordered the stonemason to beat the fire around the boulder and stir up the cold water for more than ten days, and the boulder on the top of the cliff is even more loose. And those dozens of pounds of explosives were the last straw that crushed the camel, and with a bang, the boulder on the top of the cliff where the stone root was destroyed was crushed like a giant tank.

Dozens of catties of "Houli" rolled down, and they were almost caught up with a boulder the size of a small hill with dozens of tons of soil and trees, and the "Houli" was very rude, crushing the dense jungle into debris very roughly, hitting the land in an instant, as if there had been a five- or six-magnitude earthquake, and the whole earth shook violently at once, and after a series of bangs, the officers and soldiers of Xu Ensheng's troops who were marching between the valleys had no time to escape except for screaming.

There was a reaction of the left army hurriedly turned around and fled, but in the mountains and rocks between the cliffs and valleys to escape where can compare to the speed of the boulder mud rolling down, not long after, many left troops were buried in the mud and sand, and some were unfortunately crushed into meat cakes, just like that, Xu Ensheng's 20,000 officers and soldiers were killed and wounded nearly 6,000 people just because of the rolling down of a boulder on the top of the cliff, and the road into the mountain in front was also completely destroyed, but there was only one road into the mountain from this direction, Xu Ensheng had to order the army to camp temporarily to rest, and then find a way to reopen the road into the mountain after the mudslide, But this delay was delayed until the next evening.

The Han army that created an artificial mudslide by smashing down boulders on the top of the cliff to block the left army was only Li Guangtian and a team of soldiers, and most of the soldiers of the 8th Battalion of the Han army were divided into three roads at this time, blocking the remaining three left armies between the other three mountain ranges.

The soldiers of the eighth battalion have already found a favorable terrain between the three mountains and built fortifications along the way, the so-called fortifications are actually commonly used in modern warfare, and the well-arranged communication trenches and lookout posts are walking among the forests, while the Han army is all prostrate in the trenches, only half of their heads are exposed, even if the left army is close to the trench for a hundred meters, it is difficult to find their whereabouts, but they can rely on the cover of the trench to give the left army a dense fire strike in a range of hundreds of meters.

The three connected circular communication trenches and trenches attached to the rocks and trees completely guarded the three roads in a narrow strip less than 200 zhang wide, and they were one after the other, in which the Han army could move through at will and support the most tense places in the war. In short, when the left army arrived, Zuo Liangyu, an outstanding military general in the late Ming Dynasty, would know how to use ** in mountain warfare to perfectly play his advantages, but unfortunately, he still played the role of guinea pig this time.

The left army is not chaotic when marching, in order to avoid sudden attacks, their rattan players are always neatly guarded on both sides, once they meet a high slope or cliff in front of them, they will raise the rattan cards to guard against the sudden attack of feather arrows or the impact of iron bullets, in addition, their archers are always pulling the strings next to the rattan players can counterattack in an instant, and the firearms are also lined up in three columns in advance, in short, if you want to ambush the left army, you must have an absolute advantage in weapons or troops, otherwise it is really difficult to gnaw.

However, the soldiers of the 8th Battalion of the Han Army did not choose to ambush, on the contrary, they chose the area on the gentle hills and guarding the main communication routes, and these places were the most lax times for the left army, in order to advance more quickly, once they came to these relatively wide and gentle areas, the left army would change its formation and advance in a straight line, just like a person completely exposing his abdomen to the opponent, and the muskets of the Han army could completely hit the abdomen of the left army.

"Hit!"

Li Guangtian didn't know when he had already come to the position of the first target, and when he saw the left army walking side by side as if it were harvested rice less than 300 meters away from the forward position, he hurriedly shouted. ”

In an instant, countless iron bullets mixed with the autumn wind in the forest shot towards the left army, and the iron bullets pierced their abdomen or forehead, which was very painful, and when the cold wind poured into the wound, it hurt even more! Many of the Left Army began to howl and cry, but many of the Left Army foot soldiers hurriedly stepped back and quickly replenished the rattan players and archers, but soon, the archers who were hiding behind the rattan players and half-crouched found that the yellow leaves were falling in the sky, and there was not a single thief army in sight.

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