When Lü Bu returned, he also deliberately asked the fleet of sailors to circumnavigate the Bohai Bay, especially the coastal area of Liaodong County.

When Gongsun Du heard that the naval fleet of the Central Army was inspecting Bohai Bay, especially when he heard that Lord Lu Bu was in the fleet, he hurriedly took a small boat and waited for the ship to meet Lu Bu.

This is the first time Lu Bu has seen Gongsun Du himself, Gongsun Du is Xu Rong's fellow villager, and I think it was Gongsun Du recommended by Xu Rong to the imperial court back then.

After Gongsun Du saw Lu Bu, he also felt that Lu Bu had the momentum of a high-ranking person, and he swore an oath to the sky, declaring that he was willing to be a vassal of the Han Dynasty forever, guarding Liaodong for the imperial court for generations, and suppressing Goguryeo, Sanhan and other foreign races.

Lu Bu knew that he had been independent in Liaodong for a long time and had a deep foundation, and now he had a good attitude, but he couldn't move him.

Lu Bu Wenyan encouraged him to do things for the imperial court with his heart, promising that his position as county guard and title could be hereditary to his descendants.

Gongsun Du was able to establish a foundation, naturally he was not an ordinary person, he knew the current affairs, knew the advance and retreat, and showed his due low profile.

And throughout his life, he never turned his back on Lu Bu and the Chang'an court, and created the most glorious and stable golden twenty years in Liaodong.

After inspecting Bohai, Lü Bu took a naval warship upriver and returned to Chang'an from the Yellow River waterway.

After returning to Chang'an, in addition to accompanying Xu Shu to meet his old mother and shedding a few tears, he held a huge wedding for Fazheng.

He gave Fa Zheng a month's marriage leave and allowed him to return to the Western Regions with his new wife, of course, only his wife.

Gao Shun personally went to the old camp in Yunzhong in Bingzhou to personally organize and train the troops from Qingzhou and Jizhou.

The Qingzhou Army has a good foundation, and the training it received before is similar to that of the Central Army, and many of the middle and lower-ranking officers simply graduated from the Central Military Academy.

And the Jizhou army is much worse, Yuan Shao liked face goods and lacked training before his death.

After Gao Shun asked Lü Bu for instructions, he disrupted and reorganized the 100,000 troops in Qingzhou and Jizhou, trained three new infantry divisions, and selected some elites plus strong men selected from the nomadic troops and herdsmen to form a new cavalry division.

For the newly established 11th Division, Chen Zhi served as the division commander. The twelfth division, the division commander is Lu Dai. The commander of the 13th Division is Zang Ba, and of course these new division commanders need to go to the Army University to study for senior officer refresher courses.

The commander of the 10th Cavalry Division was Zhao Zhao, and the commander of the Xianbei Servant Army was taken over by Fan Chou.

However, these troops did not all return to Qingzhou and Jizhou, the 10th Cavalry Division will follow Fa Zheng to Liangzhou, replace Tai Shici's 9th Division, and garrison Liangzhou, and the 9th Division will be transferred to the Western Regions Protectorate with Fa Zheng.

Both divisions were to be equipped with artillery battalions, and the arsenal in Chang'an was running at full capacity, producing mortars, shells and grenades for them.

The personnel of the artillery battalions of the two divisions have long been trained, and an artillery training base has been specially established in the Baling battalion.

The artillery of the Central Army did not hesitate to pay any cost during training, and in the later stage of training, they used live ammunition for drills.

Of course, arsenals and laboratories have also been improving the manufacturing process and raw materials of mortars, and the barrel life of the new mortars has been doubled, reducing a lot of logistical pressure.

Moreover, the charge of the shells that can withstand is also increased by 20%, so the maximum firing range of the mortar has been increased to 250 zhang.

This gives more room for the coordinated tactics of infantry and artillery, and also improves the safety of the artillery itself.

The building ships of the navy have also begun to be equipped with mortars, and they have replaced the manpower trebuchets with mortars, which has saved a lot of space and load, and the building ships can appropriately increase the protective armor belt of the waterline and the number of assault brigade personnel carried.

The counterweight catapult was retained, after all, its range and destructive power were irreplaceable by mortars at this stage.

However, the counterweight trebuchet was moved down to the second deck, and the mortar was placed on the top deck, which provided the best view and was unobstructed, allowing it to fire at 360 degrees.

The levers, which affected speed and seaworthiness, were also eliminated, and the top-heavy problem of the building was greatly improved.

A newer ship type that is more suitable for sailing on the sea is being designed, and of course, Lu Bu has given a lot of advanced suggestions, saving a lot of time for exploration and detours.

Lu Bu's investment in the navy is still very huge, and he understands that the construction of the navy is a large-scale project with long-term and continuous investment, and it is not a type of army that can be created today in today's war.

A few days after Xu Shu's mother got together, he came to find Lu Bu.

He asked Lu Bu for permission to visit his hometown in Yingchuan, his mother was very concerned about the rest of the family, and he also planned to move everyone in the family to Chang'an.

In addition, he also planned to visit a few of his former classmates and friends to see if he could invite them to come to Chang'an and work for Lu Bu, he thought that they were all extremely talented, and they were exactly the talents that Lu Bu needed.

The third point is to secretly visit the customs of Yuzhou and Jingzhou along the way, and arrange the army to lay a good foundation for the army to go south in the future.

Recruiting talents is Lu Bu's favorite thing, not to mention that he is also thinking about a great god named Zhuge Liang!

However, Zhuge Liang is only twenty years old this year, and his fame is not so big, Xu Shu has not heard of him, but since Lu Bu is concerned, he keeps it in mind, and if he has the opportunity, he will meet him well.

However, Xu Shu wants to go on the road alone and go to the enemy-occupied area, how can Lu Bu rest assured?

He asked Ma Tie to accompany him with a platoon of guards, and at the same time ordered Li Su's intelligence department to send a shadow team of at least fifty people to secretly protect him.

He also asked Xu Shu to keep in touch with the Ministry of Intelligence so that he could know his whereabouts in case of accidents.

Xu Shu comforted Lu Bu that he was born in a shadow, and this kind of sneaking into the village was the most familiar, and he didn't wear a mask, but no one recognized him.

In July of the 200th year, Xu Shu took Ma Tie and more than 30 people from the guard platoon to pretend to be business travelers, got some northern specialties and grassland furs, replaced them with ordinary pack horses, and drove a few carriages, left Chang'an, and went to Yingchuan.

From Lantian to Hongnong County, all I saw along the way was a busy scene.

Much of the wasteland has been cleared, and the post roads are paved with asphalt gravel roads.

Xu Shu always thought that he governed Qingzhou very well, but he didn't expect that under the rule of the lord, it was far better than Qingzhou.

Passing through Bear's Ears Mountain all the way to the east, Hongnong County is no longer what it was ten years ago.

Over the years, there has been a massive influx of people from the Kanto region under the control of the Chang'an Imperial Court, and the population density of Hongnong has increased greatly.

Villages have been established in many previously uninhabited areas, and most of them are built along official roads, making transportation very convenient.

Along the way, there are people from the intelligence department to act as guides, arrange food and accommodation, and also save many checkpoints for checks.

Since Lü Bu asked Li Su to reflect on the lessons of the Liaohua mutiny, the checkpoints in the areas controlled by the Chang'an court have become much stricter.

In particular, counties and counties directly bordering enemy-occupied areas such as Hongnong are even more focused on prevention.