PS: It may be late today, try to finish it before two o'clock, if you can't finish it, please bear with me. ……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

The shape of Liangzhou is somewhat peculiar. It is not only like a long wedge, embedded in the vast northwest from east to west, but also like an open arm, the arm is bent to connect Chang'an, and the palm of the hand reaches the Western Regions. Nearly half of it is sandwiched between Qi? Between Lianshan and Heli Mountain, Longshou Mountain and other mountain ranges, it is long and narrow and straight, shaped like a corridor, and is called "Hexi Corridor" because it is located in the west of the Yellow River.

The northeast of the Hexi Corridor is the vast desert, and the southwest of the Hexi Corridor is the towering mountain range, it is precisely because of the melting snow-capped mountains of the Qilian Mountains that irrigate and moisten this land, making the Hexi Corridor a rich and abundant place, and at the same time the Hexi Corridor is also the only way to connect the Central Plains and the Western Regions, and has become a strategic place that cannot be stopped. It was not until the time of Emperor Wu of the Han Dynasty that the hussar general Huo Qu broke the Xiongnu and regained control of the Hexi Corridor.

In the long hundreds of years that followed, the Hexi Corridor was also in the midst of war, and the Hexi Corridor changed hands several times between the Han Dynasty and the Xiongnu, and the war never stopped. Later, the Xiongnu declined and split into two parts, the north and the south, and the southern Xiongnu migrated south. After entering Bingzhou, the Northern Xiongnu were forced to move west to Kangju under the double attack of Han and Xianbei, and the Hexi Corridor was able to usher in a brief light of peace.

But the front door drives away wolves, and the back door enters the tiger, and the Hexi Corridor is not destined to become a quiet place.

The rapid rise of the Xianbei people. Quickly filling the gap left by the Xiongnu after moving westward, the ambitious bald tree function was not satisfied with taking the big and small elm valleys, and his goal was locked in the Hexi Corridor.

Due to the lack of troops, Xu Wu, the Liangzhou assassin of the Jin State, could only shrink his defense, relying on the strong city defense of the four cities in Hexi, and sticking to the "waiting for help".

For Xu Wu. The so-called "waiting for help" is nothing more than self-deception, and the current Liangzhou. It has become an enclave after Shu Han occupied Yongzhou, and the Jin State after Dai Wei was isolated to the east of Tongguan, even if there was something in Liangzhou, it was beyond the reach of the whip.

Without reinforcements, it means that the Liangzhou counties can only rely on their own strength to deal with the powerful bald tree function, which is indeed an extremely headache for the Hexi counties, which each has only a few thousand troops.

But the ferocity of the Xianbei people made them have to give up their intention to surrender, if the city is broken. The whole city will not escape the fate of being slaughtered, until then. However, the real jade was burned, so the Han soldiers and civilians in the four counties of Hexi were united and desperately resisted to protect the city.

But Xu Wu's heart was gloomy, and he didn't know how long this kind of perseverance could last. This rebellion of the Xianbei people is different from the past, in the past, it was only mainly plundering, roaring, and after succeeding, roaring away. Won't stay under the city for a long time. But this time it was different, obviously the Xianbei people carefully planned, and the purpose was not as simple as plundering, their goal was directly aimed at the four counties of Hexi, thinking that they were going to seize the city.

This made Xu Wu's heart a piece of despair, in the face of the Xianbei people's ocean-like offensive, the difficulty of defense is getting bigger and bigger, Xu Wu doesn't know when the city will be broken, this is a battle with no victory in sight.

But what Xu Wu didn't expect was that at this moment, there was a huge army that had arrived in Longxi, and it was already one step away from the Yellow River, did their savior really come?

Before arriving at the Yellow River, the road was safe and sound, although it is said that the bald tree function in the Hexi region rolled up a storm of rebellion, but it does not seem to have affected the area east of the Yellow River, Liu Yin does not know whether this is due to the consideration of the bald tree function, or that the Xianbei people have not yet infiltrated the power in the direction of Guanlong, anyway, none of the Xianbei people crossed the Yellow River and did evil in the east of the Yellow River.

But even if he didn't encounter the Xianbei people, Liu Yin never dared to take it lightly, and he ordered the whole army to enter a state of high alert to prevent the Xianbei people's sneak attack.

Liu Yin has heard of the cunning and treacherous function of the bald tree, and since he sent troops from Chang'an, Liu Yin has been ready for battle, and he will definitely not give the bald tree function a chance.

Spring is the time when the Yellow River floods and swells, and the wide river surface stretches endlessly, and the turbulent river surface carries a large amount of ice, rushing and rushing.

The water of the Yellow River in the upper reaches is much clearer than in later generations, and the current is more turbulent than in later generations, and it is not easy to cross the river at this moment.

Some people suggested that Liu Yin stationed troops here and waited until the Yellow River entered the dry period before acting, but Liu Yin did not have time to wait, the fighting was already in full swing on the west side of the river, and it was absolutely impossible for him to watch the fire on the other side of the Yellow River.

Although it was very difficult, Liu Yin still found more than a dozen ferries on the Yellow River, and in those days, it was impossible to build bridges on the Yellow River, and the only way to and from the banks of the Yellow River was these ferries. But the floods in the spring caused these ferries to lose business for a short period of time, and they did not dare to take such a big risk at this time.

Those boatmen were instantly stunned when they saw the huge number of people and horses led by Liu Yin, they had been staying on both sides of the Yellow River all their lives, carrying people to the other side, in order to beg for a living, such a large-scale army, it was really the first time to see it.

As soon as he heard that Liu Yin was going to the opposite side of the river at this moment, the boatman led by him just shook his head and said: "The flood that has just started this year is particularly large, and if you are not careful, there is a possibility that the boat will capsize. ”

Liu Yin asked, "How long will it take for the flood to recede?" ”

The boatman said: "The long is more than a month, the short is ten days and a half months, generally in normal years, the flood has weakened at this time, but this year it is still increasing, maybe when the flood subsides, there will be another month." ”

Liu Yin frowned, if he really waited for another month, the situation in Hexi would not have developed to that point, Liu Yin was so worried now that he couldn't wait for a moment. (To be continued.) )