Jian'an for three years.
The area under Lu Bu's rule has spent nearly a year peacefully without war.
Diao Chan gave birth to a daughter successfully, and Cao Min gave birth to a son for Lu Bu.
At this time, Gongsun Zan had been defeated by Yuan Shao, and Cao Cao was fighting on two fronts with Yuan Shu, who was retreating to Runan, and Liu Bei, who was in Xuzhou.
Another severe drought and locust plague occurred in Guanzhong, and refugees once again poured into Hanzhong and Nanyang areas, causing the population under Lu Bu's rule to grow rapidly again.
Lu Bu believed that the time was ripe to attack Yongliang.
In the autumn of the third year of Jian'an, after the grain was put into the warehouse.
The army marched out and divided into three groups.
Lu Bu personally led the way, leading a Tiger Division and 20,000 garrison troops to capture the three counties of Tianshui, Nan'an and Anding in Longyou.
To block Ma Chao from Xiliang, Han Sui mainly provided assistance to the Guanzhong area.
Along the way, Song Xian led 3,000 garrison soldiers to pretend to leave Ziwu Valley, attracting the warlords in Chang'an and surrounding areas to prevent them from concentrating their forces on the Shangyu Road.
The last route was led by Zhang Liao, who led five tiger brigades and ten thousand garrison soldiers.
They set out from Wancheng in Nanyang, passed Wuguan for business, and took the road directly to Chang'an and Tongguan.
The news that Lu Bu's army was advancing towards Guanzhong quickly spread throughout the world from near to far.
Of course, the first to panic were the various warlords in Yongliang, Guanzhong.
Song Xian's suspected soldiers in Ziwu Valley on the middle road quickly achieved results.
Song Xian, who led three thousand soldiers, followed the shape of the Qinling Mountains, climbed over the mountains and ridges, crossed the main vein of the Qinling Mountains, and entered the Ziwu Valley.
Then he sent all two hundred cavalrymen to pretend to be scouts, and deliberately galloped back and forth in the valley in a grand manner.
The remaining soldiers raised their flags and marched towards the northern end of the valley.
Duan Xuan was in fear, and Wu Xi was indeed fooled.
He quickly stationed most of his troops, more than 6,000 men, at the north entrance of Ziwu Valley, under the personal command of Wu Xi.
They built strong fortresses and planned to wait for work in leisure.
Wu Xi expected that as long as Lu Bu's army was stationed in Ziwu Valley for more than a month, the enemy would be unable to provide food and grass due to the steep terrain, and Lu Bu would naturally retreat at that time.
At this time, Zhang Liao on the eastern front had passed through Wuguan and headed towards Guanzhong.
Ever since Lu Bu stationed his troops in Shangluo and transferred the refugees, Wuguan has been guarded by hundreds of soldiers.
Even after the troops were withdrawn from Shangluo, Wuguan did not give up and increased the number of defenders to more than a thousand people.
At dawn, the sun just peeked over the ridgeline.
An army of more than 2,000 men appeared outside Shangluo City.
They were the vanguard of Zhang Liao's tribe and were commanded by Cheng Lian.
Now Shangluo has been occupied by Wu Xi's tribe, but there are not many troops stationed in the city.
There are more than a thousand old and weak soldiers and some government officials in the city.
This force did not even set up camp.
Under the command of Cheng Lian, after arriving at the boundary of Shangluo County, they went directly to the city of Shangluo County.
They walked slowly forward surrounded by a behemoth that had just been assembled.
This was a new generation of city-breaking machine designed by Lu Bu.
The metal sledgehammer is eliminated so it can be assembled on site.
It still uses gravitational potential energy, levers, pulleys and other devices to accumulate energy, and then releases the energy instantly to achieve the effect of destroying the city.
It's just that the medium used by the city breaker to store potential energy can be said to be any high-density material, including stone, so that it can be easily obtained locally.
In a large net bag, stones weighing several tons were winched up into the air more than ten meters high, and then fell.
During the falling process, a transmission device composed of pulleys, rope chains, etc. was used to drive the hammer to achieve the effect of breaking the door.
In fact, Lu Bu had already thought of this thing in his last life, but some key parts could only be made by upgrading the workshop to the basic level of the Dark Ages.
In order to do this and create more things Lu Bu wanted, Lu Bu also spent 3,500 points to upgrade the palace to the Dark Ages Intermediate Level, and spent 3,0003,500 points to upgrade the workshop to the Dark Ages Intermediate Level.
The city-breaking machine is still operated by system soldiers, and the city-breaking machine is still covered by a curtain, so outsiders cannot easily learn its structure.
The defenders on the city finally discovered the enemy.
Various gongs, drums and shouts sounded one after another.
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When the county captain led hundreds of soldiers to the top of the city, arrows were fired at them rapidly from below.
The first wave caused dozens of casualties.
Such intensive shooting forced them to huddle behind the battlements, not daring to Show your head easily.
The soldiers were nervously holding their weapons and crossbows, waiting for the opponent to climb the city wall before attacking.
Yet no one climbed the walls at all.
Just hearing a loud "boom", one of the city gates was already opened.
The dozen soldiers responsible for guarding this city gate had not yet realized what was going on.
A large number of Lu Bu's Hanzhong soldiers have swarmed in.
He stabbed them to the ground with spears and ring-headed knives.
In just a few moments, Lu Bu's soldiers took control of the entire city, and all the garrison generals and officials at the top of the city chose to surrender.
After Zhang Liao entered Shangluo, he did not hesitate for a moment and once again ordered Cheng Lian to take three days of dry food and quickly capture Lantian, two hundred miles away.
When Cheng Lian's three thousand vanguard troops arrived at Lantian City.
After Duan Xuan, Wu Xi learned that Lu Bu's army was coming from Wuguan.
Reminiscing about the fact that Lu Bu's army in Ziwu Valley was not in a hurry to go to war, I began to suspect that the opponent's sending troops to Ziwu Valley was probably a trick to deceive the enemy.
However, it was too late, Cheng Lian captured Lantian as easily as he captured Shangluo.
Zhang Liao's Northern Expeditionary Army of nearly 20,000 men received supplies from the Danshui Waterway in Shangluo, and then marched towards Chang'an in a mighty manner.
Duan Xuan had no choice but to notify Wu Xi to urgently transfer the troops stationed at the north entrance of Ziwu Valley back to Chang'an, and sent several messengers to the generals in Guanzhong and Ma Teng and Han Sui in Xiliang to ask for help.
They even sent a special envoy to send an urgent message to the Xudu court controlled by Cao Cao in Guandong.
Inside the main tent of the Song Xianjun camp.
A scout entered the account and reported to Song Xian: "Report that the enemy troops have begun to evacuate from the north entrance of Ziwu Valley."
Song Xian was not surprised by this.
Lu Bu had explained it to him before setting off.
He stepped out of the camp and looked at the main force of the Chang'an Army slowly retreating in the distance.
There are no instructions.
Only after a full two hours did Song Xian give the order: "Send my order to the general, and the whole army will attack at full speed, attacking tail to tail.
The cavalry will come forward to intercept and harass.
We must defeat the enemy in one fell swoop."
At first, Wu Xi was on guard against possible sudden attacks by Song Xian.
All units in the army covered each other in turn, scouting and reconnaissance cavalry monitored the surrounding area, and then retreated slowly.
But after leaving Ziwu Valley and entering the Guanzhong Plain, we walked for a long time and found that the opponent was not pursuing us.
So he was eager to return to Chang'an and did not want to waste time.
He canceled these measures and ordered to retreat at full speed.
But not long after, Song Xianjun suddenly appeared behind the flank of his marching column and quickly launched an attack.
Caught off guard, Wu Xi's army quickly broke up and fled towards Chang'an, with Song Xian in hot pursuit.
He led three thousand soldiers in hot pursuit, and even allowed only two hundred cavalry to intercept and harass the defeated army.
When Wu Xi fled into Chang'an City, Song Xian stopped the pursuit, but continued to intercept the defeated troops from a distance outside Chang'an City.
After Xi Wu reorganized the remaining soldiers in Chang'an City, he marched out of the city to collect the defeated troops.
Finally, he counted the number of soldiers and found that less than 4,000 soldiers had arrived safely in Chang'an.
At this time, Zhang Liao's main force was approaching ten miles away from Chang'an City.
Wu Xi had no choice but to return to Chang'an, close the city gates, and wait for help with Duan Xuan
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