As for the purpose of the Han army, the Xianbei people were confused and puzzled at first, and when the first division entered the grassland, they finally became uneasy from doubt. The 1st Division did not make a detour, and under the guidance of the guide, it went straight to Danhan Mountain.

In the border area, there are many merchants who do business with the grassland peoples, many of whom have been walking the line of Danhan Mountain all the year round, and they are very familiar with the road to the Xianbei royal court, and they are most suitable as guides. This time, Zhang Bao found three such merchants and asked them about their walking routes, and the routes they pointed out were almost the same, and after confirming that they were correct, Zhang Bao commanded the army to march to Danhan Mountain according to the shortest path.

Before entering the steppe, limited by the width of the road, the procession was generally two vehicles in parallel, and the soldiers on foot were sandwiched between the two vehicles, in order to keep the two vehicles in line with the enemy from attacking from both sides.

Of course, on some narrow roads, limited by the terrain, only one car can pass at a time, and at this time there is no way but to let the team pass quickly in sections. It can be said that this is the best time for the Xianbei people to attack. It's a pity that the suspicious Xianbei people never dared to brush the tiger whiskers of the Han army in the early stage, deliberately avoided the war, and missed the best fighter several times.

By the time they realized that something was wrong, the 1st Division had already entered the steppe. After entering the steppe, the marching shape of the first division was adjusted, in the wide Mongolian steppe, it didn't matter how the road went, the army could walk as much as it liked, even if it was rampant, no one cared, anyway, it was the vast steppe, except for the people of the first division, there was no one else to see.

In this case, the 1st Division can adjust the formation at will, regardless of the terrain restrictions. Although it didn't really go sideways, it also made the formation very wide, often ten cars in parallel, five trains on the left and right, and the foot soldiers walked in the middle.

With such a thick car formation in the way, although the Xianbei cavalry is strong, it is not so easy to break through the five-layer car formation, don't forget, they will also be blocked by various firearms during their charge.

However, at this time, although they knew that they were facing an iron wall, the Xianbei people had to force their way into battle. As soon as the Han army entered the grassland, Budugen began to feel uneasy, and when he confirmed that the Han army was heading straight in the direction of Danhan Mountain, he turned from uneasiness to panic.

By this time, the purpose of the Han army was finally clear, and the fools~ knew their plans. However, if they know it, they don't have any way at all, they are upright and upright, and they are not afraid that you will know it at all. Even if you know, you can't do anything but fight with others.

Budugen first sent a small force to harass and block, but it had no effect at all, and these scattered Xianbei cavalry did not get close to the Han army, and fell in a burst of crackling fire ~ gunfire. The 1st Division did not even have to stop to fight, and the team continued to move at its original pace, killing them only by the rest of the soldiers resting on the two outer rows of vehicles.

Basically, there is a place on each vehicle for a soldier to rest, and among these resting soldiers, if they are in the two rows of vehicles outside the team on both sides of the team, then they need to load the fire ~ gun with ammunition and guard the situation outside the team. If an enemy comes to attack, they will decisively kill the opponent, and if the Xianbei people come less, they can cope with it in the moving cart, and there is no need to delay the journey of the army.

Of course, the soldiers of the Han army did not shoot indiscriminately, they had a perfect early warning and command system, and all the actions of the soldiers had to be under command. The scouts are basically impossible to count on now, because now the ranks are surrounded by Xianbei people, and the Xianbei people are gathered in thousands of people, and although the scouts of the first division are well-armed, they do not dare to run too far.

Otherwise, with their horsepower and riding skills, it would be miserable if they were surrounded and couldn't run back, so the scouts could only give early warning within a range of one or two miles, and the range of activity was compressed to this distance, and the scout team was basically abolished.

Therefore, the current early warning system is dominated by hot air balloons, and fortunately the 1st Division has three hot air balloons. Originally, when he set off to receive the territory of Wei, each division was only allocated two hot air balloons, but Zhang Bao knew the benefits of hot air balloons, so he pestered Liu Hou with a dead face, and proposed to ask for more hot air balloons, Liu Hou was annoyed by him, so he gave him one more.

Zhang Bao and Guan Xing are both playmates of Liu Hou who grew up together, and only they can entangle the emperor to ask for things like this. Now these three hot air balloons come in handy, Zhang Bao arranged the hot air balloons in the front, middle and back of the team, and each hot air balloon was tied with a rope and tied to the carriage, so that he was not afraid of being blown away by the strong wind of the grassland.

Of course, in this way, it will be more difficult to pull the horse-drawn vehicle, Zhang Bao deliberately selected a few strong horses, and each such carriage is pulled by four horses, so that the hot air balloon can follow the team smoothly.

The early warning effect of the hot air balloon is undoubtedly very good, and the telescope on the hot air balloon has been upgraded and turned into an ultra-long-distance telescope with a small ~ thick leg with a lens tube. This kind of telescope, which pilots jokingly called "cannon barrels", is very close in performance to later domestic astronomical telescopes.

With these three hot air balloons and the "cannon barrel" binoculars, the cavalry of the Xianbei people was discovered from afar, and then through the unique and fast signal transmission system of the Hong Army, the enemy situation could be quickly transmitted to the ground, and the command headquarters quickly issued orders according to the enemy situation and mobilized appropriate forces to deal with the incoming enemy.

Bu Dugen found that the small force sent was simply to deliver food to the Han army, and the Han army was getting closer and closer to Danhan Mountain, so he finally couldn't help but send a large force to launch several crazy attacks on the first division. It's a pity that every time a large army of Xianbei people was discovered early by the hot air balloons of the 1st Division.

When they arrived, they were greeted by a formation of cars. The Hong army was well-trained and quick to move, and after the commander issued the order, they could line up in the designated formation in a very short time.

Of course, in the absence of a convoy, pure infantry, this time can be measured in minutes, and in the presence of a convoy, this time is a little longer. Before setting off, the General Staff had already drawn up plans for dealing with various contingencies, including a plan for assembling convoys in such a tight situation.

After entering the grassland, they also conducted a special drill for this plan, and now in the face of the real enemy, they can calmly complete the assembly of the convoy before the enemy rushes to 200 steps. Then calmly reload and shoot, and begin to rely on the vehicle formation to block the enemy.

Therefore, whenever the Xianbei army was ready to do its best to charge the Han army with cavalry, what they saw was a huge car formation. The formation was like a hedgehog curled up, and they couldn't speak.