The soldiers who escaped from the city of Ningxia with Bibai were all outlaws. For them, fighting and bleeding is not a great thing, and the saddest thing is that they usually don't have alcohol to drink.

Bi Chengen specifically emphasized that the Ming army had a large amount of provisions, just to arouse the fighting spirit of the soldiers. In the past, when they were still officers and soldiers of the Ming Dynasty, every time they fought, Cheng En also used looting to inspire them. After a battle, they took more from the people than the Tatar cavalry.

After the pre-battle mobilization, 1,000 cavalry drove the horses, roared out of the camp, and galloped towards the east. They were all light cavalry, and their horses were extremely fast, and they were completely able to occupy a favorable position before the Ming army entered the mountain. Fighting in the mountains, the difference in strength will be greatly reduced, although the Ming army has 20,000 people, but if it can't be put away, what is the difference with a thousand? What Bi Chengen has to do is to find a suitable place and use these thousand people to block the way of the Ming army.

Bi Chengen is still very familiar with the various passages in Helan Mountain, because he is a Tatar himself, and he has repeatedly conducted field visits to these places in the past few months. In contrast, the Ming army should be blind to Helan Mountain, which is also a major disadvantage of the Ming army.

The choice to block the Ming army in Luyugou was a plan that Bi Bai and Bi Chengen and others had already discussed, because this place was too suitable as a place for ambushes.

Luyugou is a ravine that must be passed through Helan Mountain from the mouth of the ditch, the road passes through the bottom of the ditch, and the gravel left by the flood is washed along the road, and the Ming army has heavy artillery wagons, so it will be very difficult to pass. The width of the entire ravine is not large, and it can only accommodate four horses to pass side by side, and the Ming army will inevitably form a long queue when they come here. Thus providing attackers with countless opportunities.

According to Bi Chengen's idea, he led his troops to Luyugou first, and he could hide the team on the hillsides on both sides of the ditch. When the Ming army entered the bottom of the ditch, the Bibai army could attack with bows and arrows first, killing and wounding the Ming army in large numbers and causing the Ming army to fall into chaos. Afterwards, the Bibai army made another cavalry charge, rushing down the gentle slope from both sides. With the speed brought by the downhill, the power of the cavalry will be maximized, and the Ming army trapped in the ditch can only sit and wait for death.

Since it was impossible to estimate the speed of the march of the Ming army. Bi Chengen kept urging his subordinates and hurried non-stop, for fear that the Ming army would take the lead. However, when they arrived at Luyugou, Bi Chengen found that there was calm in the ditch, and there was no sign that the Ming army had arrived.

"Bagen, you take a few people to the front to see how far the Ming army is from here." Bi Chengen commanded one of his officers.

Bagan agreed, and took a few of his men with him. Riding a horse and continuing along the bottom of the ditch, he reconnoitred the whereabouts of the Ming army. Bi Chengen commanded the rest of the soldiers, first set up some barricades at the mouth of the ditch, and then divided the troops into two ways. went up the hillside on both sides and lurked down, ready to ambush the passing Ming army. Bi Chengen ordered that all the ministries should not make fires for cooking, and could only eat the dry food they brought with them. so as not to be detected by the Ming army.

Bagen and the others walked forward for more than ten miles, almost almost out of the mountain pass, and they did not see the shadow of the Ming army. Instead, it ushered in the small team of people sent by Bibai to be on duty at the mouth.

"Uliji, where has the Ming army gone?" Bagan knew the small group of flag officers, so he asked him aloud.

"Mr. Bagen!" Uliji called Bagen according to his official rank when he was in Ningxia Wei, and reported: "The Ming army has entered the mountain and has just passed the mouth. We had few people and did not dare to contact them, so we withdrew. ”

"What? For so long, the Ming army has just arrived at Dakou? Bagan was surprised, "Is the Ming army crawling and walking?" ”

"This ...... The villain doesn't know either. Uligi replied.

Bagen asked his men to hide first, and he rode his own horse, and walked cautiously forward, going to observe the movements of the Ming army. When he was about to reach the mouth, he rode up the hillside next to him, raised his eyes, and sure enough, he saw that the abandoned fortress was full of people, and countless Ming troops came and went, some were camping, some were arming, and there was a team of people with various tools in front of the busy work. After looking at it carefully for a while, he realized that the team was building the road, removing the big rocks that obstructed the passage along the way, and filling the big potholes on the road.

I see...... Bagen felt that he understood the reason for the slow movement of the Ming army, so he drove his horse down the hill, went back to gather his own team, returned to Luyugou, and reported to Bi Chengen.

"Are you saying that the Ming army delayed the trip because of the road construction?" Bi Chengen asked Bagan.

"Exactly." "According to the last general, what the Ming army values most is their firearms. And their artillery was very heavy, and it had to be carried on a cart. The purpose of their road construction was to allow the artillery trucks to pass smoothly. They walked very slowly precisely because they had to build roads as they went. ”

"But that's too slow, isn't it?" Bi Chengen said, "The Ming army is only forty or fifty miles away from the border wall to the mouth. And Uligi sent someone back to report the news, and then we rushed over, it was already three days. Could it be that the Ming army only walked more than ten miles a day? ”

"That's true." Uliji stumbled and reported: "After the villain found out that the Ming army was out of the side wall, he kept sending people to keep an eye on their movements. In the past three days, they can only walk more than ten miles a day, and most of the time they are building roads. ”

Bi Chengen frowned: "Fighting a war pays attention to the speed of the soldiers, and it is unexpected. Xiao Ruxun's movements are so slow, this is that he doesn't plan to hide his tracks? Aren't they afraid that we will get the news in advance and ambush them on the way? ”

"This ...... The last general will not know. Bagan lowered his head and said, he is just a junior officer, how can he understand this kind of strategic thing?

Bi Chengen also knew that it was pointless to discuss this kind of matter with Bagen and the others, and he ordered his subordinates to continue to hide in case the scouts of the Ming army found out. At the same time, he also sent his own scouts to observe in front and keep abreast of the movements of the Ming army. After that, he could only wait patiently.

Another day passed, and the scouts in front came back to report that in this day, the Ming army had only advanced five miles, and it was only a forward force of 3,000 men, and the rest of the large army still remained in Dajikou, and it seemed that there was still a plan to repair the Dajikou Pass Fort and camp there for a long time.

At this time, Bibai also rushed over with the follow-up troops, and he left five hundred Cangtou soldiers to guard the tribal camp, and brought the remaining Cangtou soldiers and the newly recruited tribal soldiers to Luyugou. Coupled with the 1,000 people brought by Bi Chengen earlier, the total number of Bibai troops has reached more than 6,000 people, which is a ratio of one to three with the Ming army. Bibai believed that with the advantage of the terrain, he should have no difficulty in breaking the 20,000 people with 6,000 people.

"Xiao Ruxun hasn't come up yet?" When Bi Bai saw Bi Chengen, he asked.

"No, they are still more than ten miles away from here, and at their current marching speed, it is estimated that they will have to walk for three days." Bi Chengen said depressedly. It was so uncomfortable to lie in ambush in this barren mountain for three days, and he didn't dare to make a fire every day, so he could only eat cold food, and he and his men had never suffered such a thing.

"Xiao Ruxun's move is a bit abnormal." "Could it be that he is a feint all the way, and another way to attack us through other passes?" ”

Tu Wenxiu said: "I think it's possible, Xiao Ruxun has always been scheming with his troops, and this time the march is so slow, it is estimated that it is for us to see, attract our main force here, and then pass through other passes, cutting off our back road." ”

"However, this king has received news from various passes, saying that he has never seen the shadow of the Ming army." Before the king set out, he had sent more men and horses to all the passes. Xiao Ruxun should know that the Helan Mountain Pass is steep, and it is almost a one-man pass, and it is impossible to open it. As long as there are a few hundred people guarding the pass, the Ming army will have to use thousands of people to break through, Xiao Ruxun won't understand this, right? ”

Tu Wenxiu said: "Maybe he is indeed poor in skills, so he knows that this move can't deceive us, so he still has to give it a try." ”

He said: "Wenxiu's statement is not unreasonable. Listening to the informant's secret report, the court also put pressure on Xiao Ruxun, saying that he was allowed to send troops, but he failed to make contributions. Maybe Xiao Ruxun was forced to do this clumsy plan. ”

Bi Chengen said: "Father, in the opinion of children, we don't have to figure out Xiao Ruxun's thoughts. Even if he had any conspiracy, hadn't his 20,000 people already entered the mountain? As long as we find a way to eat his 20,000 men, the attacks on the other roads will collapse. ”

"It's the same idea for being a father." Bibai nodded and said, "What my father is worried about now is that Xiao Ruxun guessed that we would ambush him in Luyugou, so he simply stopped and didn't leave, and spent time with us, then we would be passive." ”

Bi Chengen smiled: "Regarding this, my son has already thought about it. Let's observe for another day, if Xiao Ruxun really senses our intentions and doesn't move forward, then we will take the initiative. His striker is now in the area of Baiyanggou, which is also a dangerous place. Er asked to bring a team of elite soldiers, bypass from the side, catch him off guard, eat the 3,000 men and horses of his forward, and see how Xiao Ruxun responds. ”

"That's the way to do it." "When the Ming army first entered Helan Mountain, the terrain was unfamiliar, and we definitely couldn't imagine where we could attack from." If you take someone to steal the camp, you will earn him a sum if you can get it, and even if you can't get it, it will not be difficult to get out. ”

"Father, don't worry, this Helan Mountain is our territory, how can we not let Xiao Ruxun take advantage." Bi Chengen Niu said coaxingly.

He said, "Then let's wait another day and see Xiao Ruxun's movements." You choose a thousand elite soldiers, go to the back and rest for a day, recuperate, and prepare to steal the camp. ”

"Order!" Bi Chengen agreed, and retreated with great ambition. (To be continued......)