The craftsmen of the army have always pursued practicality and speed of manufacture, and no one has considered the aesthetics or otherwise, so that these makeshift vans look rough and rudimentary, looking like large boxes made of several planks nailed together with not-so-smooth planks.

However, the planks were strong enough to block the arrows without any problems. There is never a shortage of labor in the army, so although there are many vehicles to be modified this time, after Zhang Bao mobilized a part of the troops to help, all the modification work was quickly completed.

The army was dispatched, and it was a long-distance attack, of course, the preparation work was not so easy to do, but fortunately, the first division was not a fledgling army, most of the soldiers before the reorganization followed Liu Hounan's expedition to the north, after the reorganization, under the leadership of Zhang Bao, went everywhere to receive the territory of the original Wei State, after a few months of running-in, this team has been very experienced in the preparation before the expedition.

In addition, with the coordination and arrangement of the General Staff, everything seemed to be in order, and the whole division was quickly ready to send troops. Compared with the preparation of other things, it is the modification of the vehicle that takes the most time. In addition to the installation of the car, there are axles and wheels that need to be modified to a certain extent.

Almost the day after the vehicle was modified, Zhang Bao gave the order to attack the grassland. Zhang Bao gave this operation a code name called "Huanglong" operation, which means "straight ~ pounding Huanglong", and the meaning of this code name is unknown to no one except for a few high-ranking people in the first division.

In addition to leaving one division of troops to guard Jinyang in this operation, the first division almost poured out. The strength of a regiment is a little less, but they have firearms to rely on, and the original 2,000 troops of Jinyang City to assist in defending the city are barely enough.

The Xianbei people are a people on horseback, they can come and go on the grassland, but they are not good at attacking cities, so Zhang Bao believes that there will be no danger in Jinyang City. Moreover, when necessary, the defenders could also mobilize the people to assist in defending the city at any time, which was a common thing in ancient times, and although the Hong army never did this, it did not mean that it could not be done when necessary.

Zhang Bao brought 15 days of food on this expedition, although according to the calculation of the General Staff, it was enough to bring 10 days of food and drinking water, but the theory is theory, Zhang Bao felt that it was better to be cautious, no one knew what accidents would be encountered on the road, if the war was slightly blocked, then in the vast grassland, but the day should not be called the earth.

In addition to the food, water, and camping supplies for the army for 15 days, most of the space occupied by these vehicles was ammunition and various weapons and equipment. Zhang Bao was prepared for frequent and protracted battles with the enemy.

The team walked very slowly, because most of the animals in the team were mules and donkeys, and their strength was weak, and their staying power was not good, but they pulled a lot of things, so they could only walk slowly at the speed of human walking. Moreover, two-thirds of the soldiers also need to walk, and if these cars go too fast and separate from the soldiers, they lose the meaning of the car formation.

Two-thirds of the soldiers are on foot, but what about a third? It turned out that in order to save the soldiers' physical strength, Zhang Bao asked the soldiers of each unit to divide into three groups and take turns to "rub the side of the car". Although those cars were stuffed to the brim, they always managed to find a place the size of a fart~strand for the soldiers to take turns to go up and rest.

Due to the fact that there is a third of the rest in the day, the soldier's physical fitness has been well recovered, and the number of walks that can be walked every day has also increased a lot, and the northern dimension is very high, the days are very long, the nights are very short, and the time to travel is also long, so it is easy to walk more than a hundred miles every day.

The busiest along the way were the craftsmen who accompanied the army, and the cars were constantly damaged, and they had to repair them as quickly as possible. Fortunately, we had anticipated this before we set off, and we had a large number of replacement parts prepared in advance. The main areas of damage to the car are the axles and wheels, and they have replaced some of the axles with iron axles before they came.

Moreover, some of the wheels were also covered with iron sheets, and due to the lack of time to prepare, more than half of the vehicles did not have time to modify. The craftsmen had to bring the replaced axles and some new wheels on the road as replacement parts. Even so, the wheels were barely enough in the future, and Zhang Bao had to send soldiers everywhere to cut down wood and help craftsmen make vehicle parts on the fly.

Many craftsmen were tired during this time, and even when it was time to camp at night, the sound of planing, sawing, and chiseling still sounded all night long. Fortunately, Liu Hou has always attached great importance to craftsmen, and the tradition in the army is to carry a large number of craftsmen, and the first division is no exception, and the number of craftsmen of all kinds is also quite large, so he can barely cope with this long-distance march in the past.

According to the calculations of the General Staff, this time the troops, at the beginning, the Xianbei people could not figure out the destination of the First Division, so naturally they would not come to attack, not only would they not take the initiative to attack, but because they were afraid of being attacked by the First Division, they might move the battalion far away to avoid a frontal confrontation with the Han army.

However, when they get to the back, they should guess the intentions of the first division, after all, although their education level is not high, it does not mean that their IQ is abnormal, at that time, they will do everything possible to prevent the Han army from continuing to advance, and that is when the battle is the most intense.

The process of marching was really similar to what the staff had predicted, at first, the Xianbei people did not dare to come to engage the first division at all, and the army avoided the route of the first division early, and only sent scouts to monitor the movements of the Han army from afar.

This also made the advance of the 1st Division unusually smooth, and in the territory of Bingzhou, the 1st Division easily received the counties it reached along the way. It wasn't until the first division left the boundaries of Shanxi and entered the Mongolian steppe (of course, there is no Mongolian name yet), that the Xianbei people finally felt that something was wrong.

The scouts of the first division were inferior to the Xianbei people in terms of the quality of the horses and the riding skills of the cavalry, and the number was much smaller, and it was impossible to completely expel the Xianbei scouts for a while.

This allowed the Xianbei people to roughly understand the marching route of the Han army. At first, Bu Dugen and other Xianbei high-level leaders thought that the Han army finally couldn't hold their breath, and couldn't help but pour out of the city, trying to find their main force for a decisive battle. For this reason, they also ridiculed Zhang Bao for being young and ignorant, and his impetuous temperament.

They moved their troops away from the Han army's marching route, thinking they could sit back and relax. Of course, because they have suffered a lot of losses in the past, they realized the cunning of the Han people, and in order to prevent the Han people from engaging in any more conspiracies and tricks behind their backs, they were still very cautious to send a large number of scouts to reconnoiter in all directions, especially in the direction of Jinyang.

They were very worried that the part of the Han army that came out of the city was just a pretense, and secretly there was a main force of the Han army that did not know where to ambush and waited for them, or made a detour to sneak attack their camp.

However, for several days, the dense scouts combed the grassland over and over again like a comb, but they found no trace of the enemy's strange troops, and there was no other army out of Jinyang, which made them feel very strange.