Zhao Bing's initial plan to guide Lianghuai was to lure the enemy into deep and annihilate Wanhu Mansion, the two Mongolian capitals stationed in Lianghuai areas, thereby gaining strategic initiative and waiting for an opportunity to seize Lianghuai. However, as the situation of the war developed, he adjusted his combat plan in time and changed the management of Lianghuai to capture Huainan, pushing the northern front along the Huaihe River, thus breaking the sword hanging on his head and establishing a bridgehead for the next step to capture the Central Plains.

However, the war has developed to the present, Zhao Bing found that the Mongolian Yuan side had weak response to its northward strategy, and even had fantasies about the Yuxi Timur Legion heading south and did not actively send troops to intercept it, which made him discover the fighter jets. His tentacles had reached the Central Plains and threatened the Mongol capital area. No matter how slow his reaction was, he would mobilize troops to intercept it.

At this time, the demise of Wanhu Prefecture, the capital of the Mongolian Army in Hebei, Shandong, and Wanhu Prefecture, Huaibei, Henan, which protected the Central Plains, was a foregone conclusion. The only soldiers available to the Mongolian Yuan side were the guards guarding the capital area and the sects and kings left behind in the northwest grassland area. The sects and kings were far away from the frontier, and it was the time when the severity of winter was about to end and the spring grass was not sprouting. The war horses had just experienced the severe winter and their body fat was exhausted, which was the weakest of the year and their physical strength had not recovered.

In previous years, the grasslands could still receive help from the court, and they could mix some food into the forage to feed horses, but after losing Jiangnan, this welfare was basically cut off. People were not full, and horses could only endure hunger. Therefore, horses with insufficient physical strength could not march for a long distance, which means that it would take longer to dispatch the Zong Wang army from the grassland to provide assistance. So in order to cope with the current crisis, the first choice of the Mongolian Yuan Dynasty could only be the personal army of the guards stationed in the economic areas.

This time, Zhao Bing used the tactic of splitting and attacking. The front from Ezhou to Shanyang was thousands of miles long. The corresponding Mongolian and Yuan dynasties also had to divide their troops to block and set up defenses everywhere. They were afraid that all the guards would be mobilized, and the troops were still in short supply, just like ten bottles had only eight bottle caps, no matter how they were allocated, there would be loopholes.

In this case, the Mongolian Yuan side had not much choice, so they could only play all the cards in their hands in advance. Then, there was an inevitable problem - the capital was empty. Zhao Bing was thinking about whether he could use the navy to carry the infantry to drive directly from the sea to Daguzhai. It was the predecessor of Tianjin, and it is now called Haijin, which is the transportation center for the southern transportation of grain.

If you can successfully land from the sea, you can avoid many important towns along the way to the underworld, which is like entering an empty gate. You will also surround the Mongol Yuan guards who are helping the two Huaihe Rivers, and seize their retreat, making it difficult for them to return home, and let real gold escape back to the grassland in shame. In this way, you can not only realize the strategy of regaining the Central Plains in advance, but also directly hit the enemy's life gate, which can be called a strategic beheading action.

This idea is exciting, but Zhao Bing knew that it would be very difficult to implement it. First of all, the Song Dynasty did not prepare for recapturing the Central Plains at the moment. It is unclear whether manpower, material resources and financial resources can support this plan; secondly, logistics supply will become more and more difficult as the front extends. Although some difficulties can be solved through sea transportation, time is affected by trade winds and can only be used for a few months, and the winter trade winds will soon pass. Not only does it fail to make the landing plan, but they also need to open the canal route if they want to obtain stable supplements.

Furthermore, it is not a problem to take a step back and talk about the above conditions. From a military perspective, there are many difficulties.

At present, Zhao Bing is implementing the tactics of split-up and joint attack. In fact, everyone understands that tactics are like cold weapons such as bows, swords, guns, and hammers. Some are suitable for long-range attacks, while others are suitable for close combat. Each has its own advantages. If there are advantages, there will be disadvantages. Judging from this data, the strategy and tactics of split-up and joint attacks will basically have a 50-5 impact on the outcome of the war.

The advantages of the split-advance and attack tactic are: First, it can effectively restrain the enemy's troops and make the opponent overwhelmed. This is the core and soul of the split-advance and attack tactic. Second, it can confuse the enemy's attention, increase the front width of the enemy's defense, force the enemy to dilute the defensive forces, and create attack opportunities. Third, it can enhance the mobility of its own troops and improve the reliability of logistics support. Fourth, each army can take care of each other to avoid the danger of eggs in a basket.

In addition, at this time, the means of war command and communication are limited, the long-distance logistics supply efficiency is low, and the supply output of unit geographical areas is also limited. Therefore, when organizing large-scale attacks, separate the army and share the pressure of command and logistics. However, this tactic also has disadvantages. First, the command coordination is inconvenient, and it is easy to disperse and cause chaos; in addition, the troops are dispersed, which provides the opponent with the opportunity to defeat each other.

Zhao Bing knew that to ensure victory in the war, we must grasp three principles:

First, the ratio of troops should be appropriate and reasonable. Dividing and advancing does not mean equally distributing troops, but rather having a master and subordinate;

In both, the main and secondary transformations must be flexible and maneuverable. The key to splitting and advancing is to disperse the enemy's forces. Therefore, although the tasks of the troops on our side are different, under certain conditions, partial divisions and main forces must also flexibly transform, striving to use the leverage of "diving and advancing" to give full play to the greatest advantage of each force;

Third, the cooperation between the various routes must be compact and close. Dispersing troops does not mean being willful and randomly divided. The troops of the various routes either form strategic cooperation or form tactical coordination in the battle, otherwise dispersing troops will become a battle of their own;

Fourth, the offensive and defensive transformation must be fast and resolute. The troops in various attacks must sometimes adjust their combat tasks reasonably according to the change of the war situation. If necessary, they must even switch from an offensive state to a defensive state.

In short, the current implementation of the tactic of split-progress and joint attack is not only limited by command and logistics conditions, but also due to the lack of effective timing, communication tools and terrain recognition methods. Therefore, the victory or defeat of the split-progress and joint attack tactic often depends on the individual command and collective cooperation capabilities of the commanders of both sides and the front line commanders.

Zhao Bing's plan to advance north this time was mainly divided into three routes. The goal of the Western Route Army was Xiangyang, the goal of the Central Route Army was Shouchun and Zhongli, and the Eastern Route Army was Xuyi and Shanyang. It was very far apart and basically did not have the possibility of mutual support. The attack along the way was too fast or too slow, which would lead to the scattering and joint attacks being disordered, unable to cover each other's flank safety, and the enemy exploited loopholes.

Because Zhao Bing knew that the most famous example of the failure of the tactic of division and joint attack was the Battle of Sarhu between the Ming and the Later Jin. The Later Jin army used its inferior forces to annihilate three of the four armies of the Ming army, and so the famous saying of Nurhaci was circulating in the public: "No matter how many times you come, I will only go all the way." Therefore, he strictly ordered all armies to strictly implement the scheduled combat plan, and not to change their own will or not change their established strategies. Although this seemed dull, it was also necessary.

Now, the entire plan was implemented very smoothly, and all departments completed the established tasks. But Zhao Bing was very clear that it contained a fatal flaw, and this flaw was in his own right. In the entire plan, the Eastern Route Army was the most critical part. First, we must successfully lure the Yuxi Timur Legion into the trap and secretly transfer the troops south to encircle and annihilate the enemy in the south.

At the same time, under the condition of the main force of the Eastern Route Army's transfer to the south, Zhao Bing not only had to conquer Yangzhou City, but also annihilate the last live force in the two Huaihe areas, and quickly occupy Xuyi and Shanyang, and then switch to defense on the spot to intercept the aid of Dadu, and buy time for the annihilation of Yuxi Timur's army. Although he completed the task at the moment, he also understood that if the enemy saw through his plan and the enemy concentrated his troops to attack the Eastern Route Army with all his strength, then there would be a risk of collapse.

Although Zhao Bing was confident in the power of the firearm, he did not think that he could block the impact of the 200,000 enemy troops with less than 20,000 troops. As long as he failed here, the enemy army would pour down like a flood. Not only would the encirclement and annihilation of Yuxi Timur's army become a pot of rice, but the enemy could also detour to the side of the Central Army, forcing it to retreat. This also puts the Western Army in danger. Even if it captured Xiangyang, it would become an isolated city, repeating the mistakes of being surrounded and lost, and restore the front to the starting point.

After spending so much manpower and material resources, he won first and then returned in vain. This result was something that Zhao Bing could not bear. Not only did he consume all his accumulations over the years, but he would also cause the warlord to step down and trigger a new ruling crisis. So now, although Zhao Bing is close to his hometown and knows the huge political significance of regaining Bianliang, he dare not rashly cross the river and continue to move northward, swallowing this fat bite into his stomach.

However, it is very simple to resolve the crisis. As long as the main force of the Eastern Route Army led by Zhao Mengjin can destroy the enemy who crossed the south before the enemy reinforcements arrive and come to the rescue quickly, the enemy will have to sigh. With more time, he can still have the energy to stroll around Bianliang and worship the ancestral tombs. Then the benefits generated by this war are enough for him to enjoy it.

Unfortunately, Zhao Bing does not know the strategy of responding to the challenge formulated by the Mongolian Yuan side. If he knew that Zhenjin had adopted Li Qian's advice, he would be very happy at this moment and could not help but go deeper. Because Li Qian's plan was based on the fact that Yuxi Timur's army had been surrounded and annihilated, and regarded it as a dead person. He just wanted to block the Song army's way northward and gave up the Huainan area. He was completely taking the defensive stance, and seemed to be scared!
Chapter completed!