Sima Shi kept watching Cao Liang's movements closely. When the war in the north ended, Sima Shi soon received the news. When he heard the news, Sima Shi was extremely shocked.

You should know that the Hu people in the north have always been a great trouble for the Central Plains dynasty. Emperors like Emperor Wu of Han could only defeat the Huns, but could not completely conquer the Huns. It took Cao Liang only a year to completely pacify the grassland and desert and completely eliminate border troubles. This is simply an achievement that has never been reached for thousands of years. From then on, the Central Plains dynasty will no longer be threatened by the northern nomadic peoples, and the people of the Central Plains will no longer be ravaged and trampled by the Hu people.

Sima Shi knew how difficult it was to calm the troubles in the north. If it were him, it would be something he could not even think about. How could Cao Liang have created such a miracle? In an instant, Sima Shi felt that it was not unfair to lose at all when he encountered such a perverted opponent.

With the end of the war in the north, the Yellow River defense line suddenly became nervous. There is no doubt that the Bingzhou Army has not crossed the river for a long time because Cao Liang has not returned. Now Cao Liang is about to return, so it is only a matter of time before the war restarts.

The Sima army was facing a great enemy, and the entire army was on emergency guard against Bingzhou army's sneak attacks across the river.

However, Cao Liang gave Sima's defense line more than a year to give him enough time to deploy this Yellow River defense line. Even if Cao Liang returns, Sima's defense line will definitely be more confident than in the past two years. Now, the Yellow River defense line has excellent combat preparations, complete facilities, and complete soldiers. Sima's defense line is fully confident to fight this battle.

……………………………………………………………………

Cao Liang led the Left Army and the Tunqi, and the Second Battalion of the Xiaoqi Camp left Jinyang on the 16th day of the first lunar month of the third year of Zhengyuan, and walked to Jingxing Pass to Jizhou. The journey was not rushing and arrived in Liyang at the end of the first lunar month.

The reason why Cao Liang walked calmly was that it was the flood season of the Yellow River. Even if he was in a hurry to reach Liyang, it was useless. If he wanted to cross the river, he had to wait until the end of the flood season. Depending on the climate, the flood season of the Yellow River would end in early February. At that time, the flood season of the Yellow River would be completely unsealed and the water flow was smooth, which was the best time to cross the river.

When peach blossoms bloom in March, peach blossom flood will come at any time. The water level of the Yellow River will surge and the water flow will be turbulent, and crossing the river will become difficult again.

Therefore, the window period for crossing the Yellow River was exactly during this period in February. The Bingzhou Army must seize this window period and complete the crossing of the river.

Fortunately, in the more than a year since Cao Liang left Liyang, Huan Fan, Yang Hu, Du Yu and others did not rest, but actively prepared for the war and made full preparations for crossing the river, just waiting for Cao Liang to arrive.

When crossing the river, the battle is not about the few troops, but about the advantages and disadvantages of crossing the river equipment. The Yellow River is different from other rivers. The Yellow River is a big river with a wide river surface and a large flow rate. No matter how many people rush up, it is not enough for the Yellow River to block the gaps. Therefore, there is no excellent crossing equipment. If you want to break through the river embankment that is defended by the enemy, you will try to climb to the sky.

There are no two ways to cross the river. One is to use a ferry to cross the river, and the other is to build a floating bridge. These two methods have their own advantages and disadvantages. If you cross the river, the mobility is stronger. The point of crossing the river can be chosen by your own side. Multi-point breakthroughs can be implemented, but the disadvantages are also obvious. That is, due to the limitation of the load capacity of the ferry, the number of people crossing the river at one time is relatively limited. If the enemy's shore defense fortifications are relatively strong, it is more difficult to break through.

Crossing the river through a pontoon bridge can continuously put troops into the attack, especially when several pontoon bridges are built at the same time, your own team can form several columns, and through the pontoon bridge, attack the enemy's shore defense fortifications, and invest more troops.

However, the mobility of the pontoon bridge is poor, and it takes a long time to build the pontoon bridge, which lacks suddenness and concealment. Often after the pontoon bridge is built, it will be surrounded by heavy troops from the enemy, and during the construction of the pontoon bridge, it will also be hit and destroyed by the enemy.

How will the Bingzhou army cross the river? In fact, Cao Liang had a plan. As early as the first year of Zhengyuan, Cao Liang ordered the construction of a floating bridge, and basically determined the method of crossing the river by using a floating bridge.

Although the floating bridge crossing the river has its disadvantages, as long as the Bingzhou Army can protect the floating bridge and prevent the pontoon bridge from the destruction of the Sima Army, the Bingzhou Army can invest a large number of troops to the south bank of the Yellow River in a very short time, especially the Bingzhou Army can open a special cavalry passage to allow the cavalry to drive across the river along the floating bridge and directly attack the Sima Army's positions.

The destructive power of cavalry is incomparable to infantry, especially when rushing to the front, the powerful impact power of heavy armored cavalry is simply a nightmare existence. If you use a ferry, you cannot use the advantages of cavalry. This is also the biggest reason why Cao Liang insists on using the floating bridge.

But how to ensure that the pontoon bridge is not destroyed by Sima's army during the construction process, and that it can successfully seize a beachhead position in the first wave of attacks is indeed a question that Cao Liang has been thinking about.

Since it takes a long time to build a floating bridge, it takes at least several days, so any strategy like "striking the east and attacking the west" is completely useless. No matter which section of the Yellow River Bingzhou Army chooses to launch an attack on, the Sima Army will organize a large number of troops on the other side to defend and build strong fortifications to block.

Therefore, Cao Liang gave up the plan to re-select the location and directly made arrangements in Liyang, namely Baima Du. Even if Sima Shi focuses on defending the white horse and creating a solid defense line, Cao Liang is also ready to adopt a frontal hard-working model to forcibly destroy Sima Shi's defense line.

The battle between the river is itself a tough battle, and there are no fancy strategies available. After the Bingzhou Army chose the location for crossing the river, it could not be changed. After all, heavy and huge objects like the floating bridge need to be dismantled or installed, whether they are dismantled or installed, they need strong manpower and time to complete them. There is no place to take advantage of the opportunity.

Perhaps in the early stage of building the floating bridge, Sima Jun could only wait and see from a distance and could not pose a threat to the floating bridge. However, once the floating bridge was built across the heart of the river and entered the range of Sima Jun's long-range weapons, they would definitely spare no effort to find ways to destroy the floating bridge and make the construction of the floating bridge fail.

Since Cao Liang wanted to use the floating bridge to cross the river, he had to ensure the safe construction of the floating bridge. Cao Liang was prepared for this.
Chapter completed!