Lerkan knew the shooting distance of the Ponu Army's muskets. He cleverly ordered the bunker to build one hundred and fifty feet away from the Baishan auxiliary position. Moreover, he also entered the preset position in batches. The Ponu Army's artillery and crossbows were silent, and even the harassing cannons did not fire.

When Zhang Ping'an on Baishan saw this, he had to secretly give a thumbs up. Amin is a good man in war, and he controls the battlefield well. He responds in a timely and accurate manner to deal with the characteristics of the artillery of the Breaking Slave Army. After the wooden frames were in place, only a small number of people were left to connect to the wooden frames.

More scattered soldiers piled up soil bags in front of the wooden stands. Because the enemy was too scattered, the artillery fire of the Pou Nu Army had no clear target. Seeing that it was getting late, in front of the Baishan auxiliary position, the Jurchen troops had already built five bunker groups, sixty meters wide and thirty meters thick. More wooden stands were piled up five miles away from Baishan.

These built bunkers are still exposed for the time being. However, the three-meter-thick stepped earth bags have been placed in front of the bunker. There are also two-meter-thick walls on the left and right walls of the bunker.

Through the telescope, Zhang Ping'an also saw these Han soldiers doing something very interesting. They poured water into many large empty wooden barrels, and a thick wooden pillar about two meters high stood in the wooden barrels.

At first, Zhang Ping'an didn't understand what Amin was doing. When he saw the pillar frozen in the porcelain, five or six people carried it into the bunker. Three or four Ming traitors with shovels were followed behind. Only then did Zhang Ping'an realize that this was the wooden pillar that the Tartars wanted to install a ceiling for the bunker.

After these wooden pillars are in place, they just need to pile up snow around the wooden pillars and pour warm water on them. In less than a stick of incense, they will freeze in this cold weather, building a solid foundation for the bunker ceiling. Zhang Ping'an expects that after they lay the wooden rack ceiling, they will also lay soil bags on it to resist the attack of artillery.

Gu Xin, who walked to Zhang Ping'an again, obviously understood the intention of the Jurchen troops. He was surprised and Zhang De Boss: "Master! This bunker is not easy to deal with!"

"Well, I can't tell that Amin has this skill. It's amazing! These bunkers are built on the lake. You can find information about the thickness of the ice layer." Zhang Ping'an looked and ordered Gu Xin.

But Gu Xin didn't move, just shook his head: "Master! The files have been transferred, but I remember that the ice here is about four feet thick."

"What about last year? This location is close to the lake shore, and the ice layer must be very thick!" Zhang Ping'an put down his telescope and stared at Gu Xin.

"I can't remember so much. I only remember last November, the ice was five feet thick!"

Zhang Ping'an reached out to take out the record book from Gu Xin's arms, took off his gloves, grabbed the charcoal pen, and began to calculate. Gu Xin stood aside, looking at Zhang Dashuai with admiration, using Arabic numerals and some very strange symbols to calculate something.

"Go, bring me a larger piece of paper!" Zhang Ping'an was calculating the load-bearing capacity of the ice layer. Soon Hao Yidao brought a few blank sheets of rice paper.

When Zhang Ping'an saw the rice paper, he shook his head repeatedly: "Yi Dao! You really don't know that the firewood and rice are expensive. Don't worry about this, just find me a few pieces of waste paper."

After calculation, Zhang Ping'an threw down the draft in disappointment. Perhaps the enemy on the opposite side did not know how to investigate things, but the focus distribution of the bunker construction was very reasonable. This means that they built the bunker reasonably based on experience alone, and the foundation did not destroy the ice load-bearing structure.

Zhang Ping'an was thinking about countermeasures urgently. He looked back at Gu Xin: "Wrap the rattan outside the stone and make a ball weighing 100 kilograms. Well, make three! It's best to make a ball of 80 kilograms or 150 kilograms. Be quick!"

The efficiency of the Po Slave Army was high. Before dark, three rattan balls were prepared according to the requirements of Marshal Zhang. They were transported to the No. 1 auxiliary position south through the cableway.

At this time, Zhang Ping'an stood in the handsome chair, put his hands on his hips and ordered with great enthusiasm: "Put eighty kilograms of rattan balls first!" The No. 1 auxiliary position ignited the rattan ball and pushed it down the mountain. A ball of fire rolled along the nearly seventy steep slope toward the foot of the mountain.

As a result, Zhang Dashuai's experiment was very unsuccessful. Because the hillside was too steep, the fireballs rolled to the bottom of the mountain and then scattered in front of the wooden sign obstacle formation on the lake. The flames scattered around ignited the wooden stakes.

But Zhang Ping'an was not discouraged and ordered again: "Wrap the ball three more layers of straw ropes and make it firm for me!"

Soon, the flag verb player on the auxiliary position called the flag verb: Everything was ready! With Zhang Ping'an's order, the second 100-pound fireball was put down the mountain. This time it was much better than the previous one. The fireball rolled out at least fifty feet, and countless wooden stakes were cut off along the way. Although it did not fall apart, it was still blocked by the wooden stake blocking its way.

Zhang Ping'an was now at a loss and ordered the release of the third fireball. The super-large fireball was shockingly loud. After bounced twice at the foot of the mountain, it overwhelmed all obstacles and rushed to the Jurchens' bunker accurately. Although the fire was amazing, it failed to cause substantial damage to the bunker.

The Ming traitors who were still building the top floor of the bunker were startled, but the fireball was quickly extinguished. They took off their pants with ridiculous gaze, took out their black birds, and released the water at the fireball that was about to be extinguished. The officers and soldiers of the Poison Army who saw this scene were so humiliated that they cursed.

However, their general Zhang Ping'an didn't care about this and took Gu Xin to the castle with excitement. He hummed the eleven-eight-touching songs while walking. The brothers of the personal barracks who were preparing for war on the platform were completely confused by Marshal Zhang's actions. They couldn't understand why the general was so happy about this obvious humiliation.

But they understood one truth: Mr. Zhang's actions of humming lewd songs meant that the Jurchens' hardships would not be too far away.

Zhang Ping'an, who entered the castle, did not go to the study, but went to the war room. He asked Hao Yidao to carry a bag of sand and soil from the platform. As a result, Hao Yidao carried a bag of 50 or 60 kilograms of soil bags in one hand and easily threw them at his feet. Zhang Ping'an asked Gu Xin to recruit soldiers and teach them to tie the bags with his own hands.

This technique was learned when he was studying in a military academy in later generations. It was in the 1980s and the end of the Sino-Vietnam War, and bundling was still a compulsory course.

Zhang Ping'an used the ready-made materials at hand. He first replaced the * with sand and soil, tied the * and inserted firecrackers into the reserved three small holes. (If there is no *, he will use firecrackers instead) and used the lead wire of the ignition cannon instead.

He took a few more leads and used hourglass to determine the length of the lead. Then he sawed the vine ball in half and experimented with the time when the vine ball caught fire and burned it inside. This determined the position of the lead.

On the basis of the success of all experiments, Zhang Ping'an began to use the ** bag. Of course, it was Hao Yidao who was very powerful and powerful, who was in charge of the work, and he was instructing him. Zhang Ping'an was particularly satisfied with the accuracy of Hao Yidao's execution of the order. A * bag weighing 200 pounds was formed.

He asked Hao Yidao to bring two bed mats to attach the buffer for this round bag. When the whole bundled bag was made, he found in pain that the super large bag was too big. The big one couldn't even get out of the door. As a last resort, they had to remove the bag and pack it separately after they arrived at the platform.

That night, the Jurchen raping troops took advantage of the night to secretly destroy the wooden stake barrier belt and piled up soil bags at the bottom of the mountain of the auxiliary position. As a result, the sentry on the auxiliary position discovered that the two fireballs went down, causing the sneak attackers to appear in their true form. After the crackling sound of the musket, more than 100 casualties were left.

But under the leadership of Amin, the Jurchen traitor troops quickly found a solution. They calculated the blind spots of fire from muskets and repaired the bunker overnight.

.........

Early the next morning, Zhang Ping'an came to the platform again after breakfast. He was surprised to see that in just one night, the Jurchen Tartars built more than 20 bunkers within a range of 100 to 200 feet in front of the auxiliary position.

The soldiers who fought in the Tartars today were obviously much earlier than yesterday. Zhang Ping'an held a telescope in his hand and observed the enemy formation. He vaguely saw that behind the Han army's Yellow Banner troops, there were three thousand black armor troops, which was very similar to the armor of the Pou Nu Army.

He saw Gu Xin using a high-power telescope to observe the enemy situation. So he stepped forward and pushed him away gently. He used this large telescope and looked carefully, and his heart was suddenly furious. This army was simply a reappearance of the mountain troops of the Po Slave Army.

Nurhaci wanted to use this army dressed in the Slave Army to defeat the morale of the Slave Army. Zhang Ping'an tried hard to suppress his anger. He stood up and returned to his seat, and signaled Gu Xin to see it. After Gu Xin finished reading it, his face turned pale, but he did not speak.

On the battlefield, he knew what to say and what not to say. He sat next to Zhang Ping'an, looked around and saw that no one paid attention to them, so he whispered: "Master! What should I do?"

Unexpectedly, Zhang Ping'an opened his mouth and scolded: "This is the only way to do this!"

Then he jumped onto the handsome chair and ordered loudly: "You all let me listen! No matter what tricks the Tartars play, just follow my orders! Do you understand?"

"Yes! Grand Marshal!" everyone answered in unison.

At this time, the Jurchen coalition forces attacked the positions and heard the sound of a sonorous war drum. The attacking soldiers were carrying earth bags like waves, and their formation was scattered, but their targets were clear and rushed into their respective assemblages.

After hearing the sound of the ox horns, more than 3,000 people ran out of the bunker, and they were in a team of 100 people, using scattered troops to quickly lay soil bags. In a very short time, they laid a mud wall of more than one mile wide and three feet high.

Then, using this piece of earthen wall to cover them, they threw the earthen bags out. When the earthen wall was five feet thick, another wave of about two thousand people flipped out from behind the earthen wall, ran forward with the earthen bags on their backs and started building the earthen wall again.

Zhang Ping'an looked calm when he saw this. Now this little man is not worth fighting. There are not many people left after a round of artillery. He only has few results in fighting. He just watched the Jurchen Alliance Front advance towards Baishan. The personal soldiers around him who were observing the enemy's situation reported the enemy's advancement distance.

"The enemy is three hundred feet away from the auxiliary position!"

"The enemy is two hundred and fifty feet away from the auxiliary position!"

"The enemy is one hundred feet away from the auxiliary position!"
Chapter completed!