After Tian Yu left, Cao Liang officially took office and assassinated the state.

All the subordinate officials of the Assassin's Mansion will be retained, and Cao Liang needs an experienced and stable office that will not cause disorder in the order of the state capital because of the change of the Assassin's History.

Now that the Xiongnu have just been repulsed, most of the cities, including Xihe and Taiyuan County, have been recaptured from the hands of the Huns, and these cities need to be re-dispatched officials and relocated people, so this must be an extremely large work.

And Cao Liang's main target now is the Huns who have fled to Jiuyuan, it is advisable to chase the poor Kou with the remaining bravery, not to sell the name of the overlord, Cao Liang certainly will not think that after recovering Jinyang, he can put the sword and gun into the warehouse, and the horse will be put in Nanshan.

The Xiongnu are always a big trouble, although they are now defeated, but the hundred-legged insects, dead but not stiff, if Cao Liang ignores it, then these Huns are still very likely to make a comeback.

In order to cleanly and completely eliminate the threat of the Huns, Cao Liang was preparing to march to Jiuyuan, if it wasn't for Huan Fan's suggestion that he stay still, Cao Liang would probably have killed Jiuyuan non-stop.

However, Huan Fan's suggestion is still very pertinent, not to mention that the Pingbei Army has been fighting continuously, and its physical strength and energy are already seriously overdrawn, so it is time to take a good rest during this time.

And Cao Liang did not have the idea of merging the Prefecture Assassin Historian Office and the Pingbei General's Mansion into one, although many of the leading soldiers were assassinated, the General's Mansion and the Assassin Historian's Office were one.

But in Cao Liang's opinion, this is completely unnecessary, and the State Assassin Historian's Office itself is a complete and perfect system, if it is disrupted and rebuilt now, and the people on his side are inserted into it, it will inevitably cause chaos in the system, and it will be difficult to work normally in a short period of time.

In addition, the Pingbei General's Mansion is completely set up for the military, while the Assassin's Office focuses more on people's livelihood and economic affairs, and the military is only taken into account, and the functions of the two are different.

Therefore, Cao Liang simply maintained the size of the two teams, each operating independently, and fine-tuned the functions, the Assassin Historian's Office no longer managed the military and concentrated on civil affairs, while the Pingbei General's Office continued to exercise military functions and was responsible for managing the county soldiers in the prefecture.

According to the establishment, there are a total of 20,000 soldiers, but there have been casualties during the war, and they have not been replenished, and the total number of soldiers has not exceeded 16,000.

Cao Liang is not worried about this, the reserve soldiers recruited from Hedong County have been supplementing the lack of personnel in the Pingbei Army, so that the Pingbei Army has always been in a state of full strength.

This time, the surplus reserve soldiers can be enriched into the soldiers of the state and county. Of course, if it is still not enough, Cao Liang does not have to worry, he can completely recruit again and select soldiers in Jinyang City.

In the land of Hedong County, suitable soldiers can still be recruited, and Cao Liang certainly has reason to believe that the required soldiers can be recruited in Bingzhou.

But what Cao Liang is really worried about is how to manage this army.

Huan Fan proposed that the establishment of the soldiers of the prefectures and counties be disrupted and incorporated into the five battalions according to different types of troops, so that the soldiers and horses of the five battalions would be expanded from the current 2,000 to 5,000.

In this way, the combat effectiveness of the five battalions of the Northern Army can be multiplied, and the battalion of 5,000 people can completely carry out tasks alone, and it is not necessary to have several battalions join forces to fight in some major battles, as is the case now.

The first is that the battalions are so interdependent that they cannot even deal with each other individually in certain situations.

Huan Fan's proposal to merge the army of the state into five battalions is to fundamentally solve this problem, and the number of each battalion can be increased, so that the independence of each battalion can be maintained.

Cao Liang attaches great importance to this merger and expansion, after all, each battalion will increase by 3,000 people, and whether such a large-scale county soldier joining the five battalions will drag down the combat effectiveness of the five battalions, which Cao Liang is the last willing to see.

According to his previous experience in recruiting troops in Hedong County, Cao Liang put forward specific requirements for the expansion of the five battalions, that is, it was better to have a shortage than to overuse, and since the five battalions were basically five different types of troops, Cao Liang allowed the five lieutenants to select suitable soldiers within the scope of the county soldiers.

Although the expansion of the army did not improve their rank, after the expansion of the army under their command, the combat effectiveness will more than double, and they will be more handy in commanding operations.

The cavalry of the county soldiers was assigned to the Yue cavalry battalion and the tun cavalry battalion.

At first glance, there is no difference between the Vietnamese cavalry and the tun cavalry, and it seems that they can be placed casually. But in fact, when Cao Liang was training cavalry, he still had some focus, the Yue cavalry battalion was developing in the direction of mobility, while the tun cavalry battalion was more responsible for impact tasks, so according to the classification of functions, the more mobile and flexible cavalry was assigned to the Yue cavalry battalion, and the cavalry with tall men and horses was assigned to the tun cavalry battalion.

The classification of infantry is naturally more detailed, the infantry battalion recruits pikemen, the shooting battalion recruits crossbowmen, and the Changshui battalion recruits sword and shield soldiers, but there are also some of these arms and state soldiers, and you can take a seat when the time comes.

Since there was a shortage of four or five thousand soldiers in Bingzhou County, Cao Liang first had to replenish the shortage, and this time he was facing the recruitment of the people of Jinyang.

After Cao Liang succeeded Tian Yu as the assassin of Bingzhou, the people of Jinyang were unanimously supportive, and in their opinion, under the leadership of Cao Liang, Bingzhou would inevitably have a peaceful and stable environment.

For Cao Liang's recruitment, the people of Jinyang also showed a positive attitude of support, and many young and strong people joined the ranks of recruitment, and Cao Liang was selected for admission.

However, this time the eliminated soldiers were not sent back, but were incorporated into the city defense army by Cao Liang, the Pingbei Army is a field corps, responsible for the task of attacking the Huns, and the city of Bingzhou also needs to send troops to defend it, so Cao Liang arranged not to be admitted as a soldier in the fifth battalion, and became the city defense soldier of Bingzhou.

The size of the city defense army was maintained at about five to six thousand people, and the reserve established by Cao Liang could relatively easily enrich these soldiers into various battalions and city defense troops.

In the event that the city is attacked by the enemy, if the number of troops is insufficient, the city defense army can mobilize reserves into the city defense system to strengthen the defense of the city.

After the plan was decided, Cao Liang quickly started the expansion of the army, and the work was carried out in an orderly manner.