With the issuance of the edict and the transmission of the order of the imperial driver's personal conquest, it was not only Henan under the direct leadership of Guo Rong who carried out preparations for the Northern Expedition.

Guanzhong, which belongs to the direction of Guanlong, Heluo and Yanhai, which belong to the Central Plains, Jiangnan, Jianghuai, and Jiaodong, which belong to the neighboring war zones, and even Shuofang, Zhenwu, and Hedong regions that belong to the northwest direction have also begun to get busy.

First of all, the treasury of all the regions adjacent to Henan was opened again, and in addition to the immovable ballast grain, the treasury of dozens of state capitals was withdrawn.

In order to transport this grain to the front line, the state and county governments in various places once again levied conscription, organized people's husbands, and were responsible for transporting grain and grass, and at the same time dispatched county soldiers to coordinate the escort.

Thanks to the concerted efforts of all officials, officials, soldiers, and citizens in dozens of prefectures and counties, more than 600,000 stone of grain were transported along the river within a month, accompanied by nearly 200,000 people and servants who were responsible for the transshipment, and more than 50,000 county soldiers.

In addition to the state capitals directly under the control of the imperial court, the various feudal towns also began to frenzied actions and preparations.

Among all the military towns, the first to receive orders were the northwest Shuofang, Zhenwu, and Hedong, which were the most loyal to Chang'an.

Needless to say, Shuo Fang was Li Tang's number one supporter, and it was also the biggest pillar that Li Tang's royal family could withstand several crises, and their loyalty was beyond doubt under countless blood.

In the era of Ren Dijian, the Tiande and Zhenwu armies were already on the verge of rebellion, but with Ren Dijian being beheaded by Guo Rong, Fengzhou became the Mobei base of the forbidden army, leaving a large number of forbidden troops to make this area become the effective jurisdiction of Chang'an again.

As for Hedong, it is needless to say more, Hedong Jiedu makes Yan Shou a hardcore Chang'an embrace, a firm unification faction.

Since Ren Dijian was killed and the Mobei sweep was basically completed, before the Tubo people invaded on a large scale, the northwest direction of the Tang Dynasty had actually become a relatively stable area.

Combined with the defensive strategy formulated by Guo Rong, Li Xu, and Zheyungu, Li Yu merged the Tiande Army and the Zhenwu Army in Fengzhou into the Zhenwu Army, and merged the Xia Sui Army into the Shuofang Army.

Immediately afterwards, based on the veterans of the forbidden army left in Fengzhou at that time, under the auspices of Fan Xichao, the envoy of Shuofang Jiedu, the two military towns of Zhenwu and Shuofang had begun the reform of the forbidden army.

By the time the Tibetans invaded, the reform had been preliminarily completed. After the reform, the Shuofang army had 30,000 elite cavalry and 60,000 foot soldiers.

Although the number of people is not the largest, and from a strategic point of view, it is also mainly defensive, but its comprehensive combat strength has reached six to seventy percent of the Changying Army, and its comprehensive combat strength is probably the highest among dozens of feudal towns in the world.

In particular, the full 30,000 elite cavalry gave Shuofang a powerful long-range raid ability. Compared with the Shuofang Army, which is the absolute main force of the Tang Dynasty, the strength of the Zhenwu Army is much inferior to the Shuofang Army, with only 60,000 soldiers.

However, among the 60,000 people, there were only 10,000 foot soldiers, and the remaining 50,000 were all cavalry formed with the support of the eldest princess in the north of Mobei.

The 10,000 foot soldiers it has are only used to defend the city, including Toyosu and the surrendered city.

After all, the main operational direction of the Zhenwu Army in the plan is the steppe. After sweeping Mobei, although an Anbei Protectorate was formed with the remaining veterans, everyone knew that the Protectorate was temporary, and the Zhenwu Army after the merger was the real Anbei Protectorate in the future.

The full 50,000 cavalry also made the Zhenwu Army the most powerful cavalry group in the history of the Tang Dynasty, and only such a powerful cavalry group could ensure the real tranquility of the entire northern Tang Dynasty.

The total of 150,000 soldiers and horses in Shuofang and Zhenwu in the northwest, especially the cavalry of the two armies totaling 80,000, is also the real hole card of Li Yu, Li Chun, and Guo Rong.

It was also at the most critical time that Li Chun and Guo Rong could still discuss the reasons for the great detour, the great outflanking, and the great annihilation.

The cavalry is strong, but it is definitely not invincible. As a frontal attack, the cavalry has no advantage, which is also the reason why Li Yu, Li Chun, and Guo Rong will hide the last hole card.

But when Datang resisted the enemy's offensive and the opponent's flank exposed loopholes, it was time for this hole card to come into play.

With Li Chun and Guo Rong finally making up their minds to set their goals in Hebei, it is time to show their edge after watching the game for half a year, waiting for half a year, and enduring for half a year.

Hebei's vast expanse will become the most suitable stage for them, super mobility, sufficient defense, and strong attack power, which will make them the brightest cubs on the entire battlefield!

10,000 Shuofang cavalry, 40,000 Zhenwu cavalry, and a full 50,000 cavalry immediately began to move towards the east of the river after receiving the order.

Compared with Shuofang and Zhenwu, which secretly carried out large-scale innovations, Hedong was too close to the rebels, and it was inconvenient to block the news, the Hedong Army did not carry out large-scale reforms, but this did not affect Yan Shou's enthusiasm in the slightest.

Since the beginning of the rebellion of the three towns in Hebei, Yan Shou, the envoy of Hedong Jiedu, has been transferring troops and dispatching generals, and concentrated the main soldiers under Hedong to Ulzhou, Daizhou and Taiyuan Mansion, with more than 100,000 troops.

Although there was no direct war against Lulong and Chengde, who were on the border, Yan Shoutun's preparations for war made President Liu and Wang Chengzong have to strengthen their defenses.

With the announcement of the Northern Expedition, the news of Li Chun's personal expedition arrived, which gave Yan Shou, the hardcore of the Tang Dynasty, great joy and hope.

Along with the edict and news, there were also a full 50,000 elite cavalry drawn from Zhenwu and Shuofang, which made Yan Shou ecstatic.

With 50,000 cavalry supporting, plus the original 100,000 horses, Yan Shou's strength at hand reached a full 150,000, plus the Hedong Army already had about 10,000 cavalry.

Even if Yan Shou is not good at military affairs, he understands that when the battle is fought at this point, when this cavalry is thrown into the battlefield, it will be the day when all the dust will settle.

As for the battlefield command that Yan Shou was most worried about, especially the command of the cavalry with a number of up to 60,000, Li Chun and Guo Rong were also very considerate and prepared for him.

Mo Lingjun, Degang, Wang Zheng, and He Haiyang, the dolls who followed Guo Rong out of the grassland, had already gone north in advance, and they would command this powerful cavalry with a size of 60,000 to complete the fatal blow to the Hebei rebels.

As for Yan Shou, what he needed to do was to mobilize grain and grass from the entire Hedong territory to meet the massive consumption of 90,000 foot soldiers and 60,000 cavalry.

Compared with Yan Shou, who has always been the hardcore of the imperial court, the Zhaoyi Festival made Lu Congshi more embarrassed.

Compared with other feudal towns, which were either passed down to the son or passed down to the generals, the Zhaoyi Army was one of the few feudal towns in Hebei that the imperial court could control after the Anshi Rebellion.

Zhaoyi, who sits in the land of five states and has more than 100,000 soldiers, has always been an important pawn of the imperial court to contain the three towns of Hebei.

In August of the twentieth year of Zhenyuan, Li Changrong, the former envoy of Zhaoyi Jiedu, died, and Dezong sent eunuchs to Zhaoyi Town to choose a successor.

Lu Congshi, the general of the Zhaoyi Army, was responsible for welcoming the eunuchs, and on the way to welcome the eunuchs, he frantically bribed the eunuchs, and at the same time invited himself to serve as the envoy of the festival.

In the face of Lu Congshi's rich bribes, the eunuchs know very well the truth that if you don't accept it, I won't accept it, how can Gonggong Geng collect it.

So, Gonggong Li accepted it, Gonggong Zhao accepted it, and Gonggong Geng naturally accepted it. Geng Gonggong accepted it, Lu Congshi naturally had room for improvement, and the eunuchs who were taken care of comfortably and made a lot of money naturally recommended Lu Congshi to take over.

Emperor Dezong's trust in the eunuchs was unmatched among the eighteen emperors of the entire Tang Dynasty, and even handed over the Shence Army to the eunuchs to control.

The eunuch he trusted recommended it, and Dezong naturally agreed. In this way, unexpectedly and reasonably, Lu Congshi became the most important envoy of the imperial court in Hebei.

However, after Lu Congshi served as the envoy of Jiedu, his behavior gradually became arrogant, taking advantage of the chaos in the imperial court after Li Yu ascended the throne, and carried out a large-scale purge in the Zhaoyi army.

By the time he abdicated and Li Yu defeated the rebellion launched by Ju Wenzhen in Xingqing Palace, completely stabilized Chang'an, and stabilized the situation in Guanzhong, Lu Congshi had already completed the purge of the Zhaoyi army.

The main generals and colonels in the Zhaoyi Army, the main civil and military officials under the jurisdiction of the Zhaoyi Army, have been replaced by Lu Congshi, and it can be said that Lu Congshi has included the entire Yicheng Army in his own pocket.

The change of the Zhaoyi Army was naturally not what Li Yu wanted, and Li Yu did consider the way to clean up the Zhaoyi Army and Lu Congshi at the first time.

Li Yu planned to go north from Hedong Road to the grassland under the escort of Guo Rong's Changying Army, and with the help of the military discipline and military appearance of the Changying Army, coupled with the assistance of the Hedong Army, Lu Congshi honestly handed over power.

After all, at that time, the foundation of the imperial court in the Zhaoyi Army had not been completely uprooted, and a suitable opportunity, a reasonable reason, could still bring Zhaoyi back into the control of the imperial court.

However, it is well known that before Guo Rong could go north with Li Chen, the Tubo people began to attack Jiannan, and Guo Rong then shined in Longxi and Longxi.

When Guo Rong led the Changying army with heavy losses but outstanding merits to return to Chang'an, Lu Congshi completely stabilized his position.

What's more, there is enough evidence to show that Lu Congshi is already having a secret meeting with the three towns of Hebei, which are not very peaceful.

No one knows what they secretly met, but Li Yu believes that if he tries to clean up Lu Congshi again, then a guy like Lu Congshi who has no bottom line is likely to collude with the three towns of Hebei and directly launch a rebellion.

You must know that although the combat effectiveness of the Changying Army at that time has been tested in actual combat, the number is too small after all, if the four towns of Zhaoyi, Lulong, Chengde, and Weibo launch a rebellion at the same time, then with the strength of Chang'an at that time, it is absolutely impossible to fight.

After thinking about it carefully, after Li Yu made the judgment that Lu Congshi wanted to divide the territory rather than rebel, he had no choice but to give up the plan to do something against Zhaoyi, and continued to acquiesce to Lu Congshi's control of Zhaoyi in a gentle way.

Sure enough, after discovering the imperial court's change in strategy towards himself, Lu Congshi quickly responded.

First of all, the end of Lu Congshi's history and the Tongqu of the three towns of Heshuo. Then, he took the initiative to send someone to send the taxes that should be paid to Chang'an, and at the same time expressed his loyalty to the imperial court and Li Yu with great fanfare.

At the same time, he secretly reported to Li Yu behind his back that Mr. Liu and Wang Chengzong had an attempt to rebel, and showed that as long as the three towns of Hebei dared to rebel against him, Lu Congshi would charge the court forward, saddle in front of the horse!

At this time, Mr. Liu and Wang Chengzong, who were placed together by Lu Congshi, found that they were called by Lu Congshi.

For a while, Mr. Liu and Wang Chengzong, who were furious, were ready to pull Tian Ji'an to make a move on Lu Congshi. While they were in full swing, the others were not idle.

While preparing for war, Lu Congshi asked the imperial court for help. After returning to Chang'an and learning about the changes in Mobei, Li Yu disregarded his body and took Guo Rong and more than 30,000 forbidden troops east out of Tongguan, first, to knock on the bamboo pole of the wealthy family in Shandong, second, to go to Mobei to support the eldest princess of Yanguo, and third, by the way, to occupy the field for Zhaoyi Lu Congshi, to deter the feudal towns in Henan and Hebei, and to maintain the general stability of the Tang Dynasty.

However, under the yin and yang, Li Yu was not able to take the east road of the river to the north, and took the flat road and Henan Road and Hebei Road to detour to the north, as a result, along the way, Guo Rong and Li Yu blocked and killed the gods all the way, and the Buddha blocked and killed the Buddha...... In Chang'an, when Datang was at its weakest, Emperor Taishang took the strongest posture and forcibly postponed the crisis within the entire Datang for nearly two years.

It was during these two years that in the military aspect, according to the model of the Changying Army, Chang'an began to go crazy and train troops secretly in the northwest.

It also developed rapidly in other aspects such as industry, agriculture, navigation, science and technology, and provided sufficient material and talent support for the forbidden army after the riot.

However, as the strength of the Chang'an court increased, feeling the crisis, Lu Congshi began to ride the wall again.

On the surface, he supported the imperial court, but in fact, not only did he no longer carry out the task of suppressing the three towns of Hebei from the imperial court, but even secretly communicated with President Liu, Wang Chengzong, and Tian Ji'an.

When Tubo entered the Kou, the three towns of Hebei raised troops, and Lu Congshi began to be a demon again. On the one hand, he secretly corresponded with Wang Chengzong and Liu Zong, saying that as long as he gave himself enough benefits, he would rebel, if not, then if he received the anti-rebellion edict required by the imperial court, don't blame him Lu Congshi.

On the other hand, Lu Congshi took the opportunity to ask the court for money, food, soldiers, horses, and land, and even asked for the position of prime minister, and the request was satisfied.

If the direction of Chang'an does not agree, then the Zhaoyi army under his command Lu Congshi will live in difficulty, and if he does not get enough rewards, he Lu Congshi may not be able to control the soldiers under his command.

However, whether it is Li Yu, Li Chun, and Guo Rong on the Chang'an side, or Liu Zong and Wang Chengzong on the rebel side, they have long seen through the essence of Lu Congshi.

The two sides invariably strengthened their precautions against Lu Congshi on the one hand, and ignored Lu Congshi's idea of wanting to reap the benefits of both ends on the other hand.

Hedong is also the Shanxi of later generations, and the entry and exit of Shanxi is essentially called several east-west directions

On the road of "Jing", the Hedong Army strengthened the defenses in various places according to Yan Shou's order, and while preventing the three towns of Hebei from marching, it also blocked Lu Congshi from Hedong.

In order to remove the back road threatened by Yan Shou, and at the same time prevent Lu Congshi Zhen's dog from jumping over the wall to launch a sneak attack, Liu Zong and Wang Chengzong added up and deployed nearly 150,000 horses in the west of the three towns of Heshuo and Yanzhou, Zhenzhou, and Zhaozhou, which border Hedong.

For a time, Lu Congshi, who repeatedly jumped between various forces, became the most embarrassing person in the whole Shandong.