As winter turns to spring, the snow in the north of Rouran gradually melts away, revealing the withered yellow turf and muddy black soil again, mixed with the tender yellow dots in the middle of the withered yellow, indicating the arrival of spring.

Outside the Han camp, flags were unfurled in the newly opened camp, and the recruited men and captured Slavs were digging in full swing, digging deep ditches inside the camp.

This place is located in the north, is one of the throat roads leading to the north, Su Lu decided to build a city here, one can be used as a transit place for the north into the Han Kingdom, but also for the long-distance business travelers to have a place to rest.

As soon as the earth thawed, the city was being built in full swing.

Officials dispatched by the Ministry of Industry have completed land exploration, the bricks needed to build the city have already begun to be fired, and more than a dozen caves have been excavated on the hillside to the east of the coal mine.

Cao Hua put on a cloak, inspected the camp, waved away the accompanying officials, walked into the camp, and went outside the Chinese army.

Untied the saber at his waist and handed it to Gao Dabao who was guarding the Chinese army, Cao Hua asked casually:

"How is the prince in his mood, but he is still worried about Xiaoliu's affairs?"

"No, adults try not to mention Xiaoliu and arouse the prince's sadness."

Cao Hua nodded, untied his cloak, and entered the Chinese army.

"Cao Hua is here."

Su Lu's voice rang out inside the tent.

Cao Hua answered, walked into the camp tent, and saw Su Lu standing in front of the defense map with his hands in hand, originally only a little gray hair, but now it is mostly white.

Master is old again.

Cao Hua's heart was a little choked, the master worked hard for the country, worked hard all his life, and when he was old, he even encountered the tragedy of being killed by a foreign race and the guards around him.

Slavs, damn it.

Thinking like this, Cao Hua walked to Su Lu's side and asked softly:

"Master, what are you looking at?"

"Let's see if we can take down the Slavs."

Su Lu said with a smile, pointed to the chair next to him, motioned for Cao Hua to sit down, and he also sat down on the chair, and said with a smile:

"Why, I'm going to build a city here, and I've attracted you, the secretary of the military department, and the military department doesn't agree with me to build a city?"

Cao Hua took the teacup brought by the guard, shook his head and said:

"Naturally, no one in the military department dares to contradict your military orders."

"It's just that I'm worried that if you stay here for a long time, your body won't be able to stand it, even now, it's already a hot summer in the south, and it's still quite cold here."

Su Lu took a sip of the tea on the desk and said in a deep voice:

"As far as I know, compared with my Han country, the Slavs may have a slight gap between the birds, but the combat power of the sergeants is still above our Han army."

"If the Slavic principality is determined to attack our Han country, this place must be the place they must pass through, and it is necessary to build a city here."

Cao Hua sighed:

"In the past few months, riots planned by the Slavs have broken out in various places, although most of them have been suppressed, but they have also caused heavy losses to our Han army, and I have a direct understanding of the ability of the Slavs."

"Foot battle, if our army does not have the strength of the military formation passed down by Master, it will not be able to resist the Slavic army at all, let alone win the battle."

Su Lu asked casually:

"Where are the Slavs attacking again?"

Speaking of the attack of the Slavs, Sulu was a little annoyed, although Shepchenko surrendered, but he did not know how many Slavs had infiltrated the Han Kingdom and where they would go to make trouble.

Su Lu could only issue military orders to all the guards, ordering all the guards to strictly defend, but he didn't expect these Slavs to be able to calm down and not shrink out.

For such a long time, there has been a lot of trouble, a lot of trouble, and the Wei Mansion has suffered heavy losses.

Cao Hua took a military booklet, walked a few steps, put it on Su Lu's table, and said helplessly:

"Xuanfu, Shazhou, Wuyuan, and Luodu have all broken out in this kind of Slav turmoil, but fortunately we have prepared in advance, and there are few Slavs, although there are rebellions in the martial arts that are carried, the losses caused to us are not large."

Su Lu slapped it on the table:

"Come and don't be rude, these Slavs, don't give them some color to see, really my Han Kingdom is his Slavic urinal, you can use it if you want to, and you can throw it away if you want to."

"Pass my military order, order the army department to recruit a large army, and Keri will pull out and go straight here."

"Send the order to Zhang Lu, just say what I said, if you can't sweep away the bandits on the front line of Xuanfu Datong Diaoyin, don't blame me for picking up his hat and let him go home to plant sweet potatoes."

A few lords quickly recorded the military order, and after using the seal, the sergeants who delivered the message were divided into several groups, and the dense sound of horses' hooves sounded in the camp, and they headed in all directions.

Cao Hua sat down on the chair on the upper right hand side, and said with a wry smile:

"General Zhang Lu is good at guarding, taking the initiative to attack is not his forte, although these Slavs are not many in number, they are good at demagoguery, well-trained military formations, ordinary sergeants, not opponents."

Su Yi said on one side:

"Then give him a talisman that can mobilize the power of the army, I don't believe it, he is the protector of the northern land, the general, and he also cleaned up a few Slavs who were mixed into my Han country."

Cao Hua glanced at Su Yi in amazement, thinking of the rumors in the army, the prince can bless the power of the military formation to the generals under his command, and everyone doesn't know what to rely on, but Her Royal Highness the princess can bless the power of the military array to the generals under his command, relying on the military talisman.

Several generals and colonels who served under His Royal Highness said that after they lost their talismans, they lost the ability to bless the power of the military formation to the generals under their command.

It seems that the master is still the new daughter of herself, and she will only pass on this ability to His Highness, but not to his own disciple.

A trace of loneliness flashed in Cao Hua's heart, but this loneliness quickly dissipated, thinking that his father died and he and his grandmother were expelled from the Cao family, if it weren't for the master, he would have been a dry bone in the grave.

"What His Highness said makes sense, if the power of the military array is given, General Zhang Lu will definitely not be afraid of the sneak attack of the Slavs, and will naturally be able to calmly exterminate these lurking Slavs."

Su Lu waved his hand:

"Alright, let's do it."

Su Yi and Cao Hua walked out of the camp with their front and back feet, and Su Yi, who was walking in front, slowed down slightly and let Cao Hua follow.

"Senior sister, do you want to get the power of the military array from your father?"

It's cold in the north, and although it's summer, when the wind blows, it still makes people feel a little cold.

Cao Hua caged his sleeves and laughed when he heard this:

"Your Highness is joking, Master can pass on the ability given by the power of the military array to His Highness, naturally there is Master ......"

Looking at the bamboo talisman pinched in Su Yi's hand, Cao Hua's words couldn't be spoken.

Su Yi smiled and said:

"This is the source of the power of the military array, you try."

As he spoke, Su Yi put the bamboo talisman in Cao Hua's hand.