When Cao Yue led the fleet to the mouth of the Yangtze River and was about to swim upstream, he received a report from Cao Jie that he had painstakingly sent to the north.

After Cao Yue read all the battle reports with a solemn face, he stood at the bow of the ship without saying a word and was stunned for a long time.

One thing that reassures Cao Yue is that all the war reports sent by Beijing to Nanjing have been intercepted by Cao Jie, and judging from the news from Cao Jie and other channels, the military and civilians in Nanjing do not know the news that Beijing has fallen into the hands of rogue bandits for the time being. The news from Nanjing did not report any unrest, and although some rumors arose, they were quickly quelled.

This is what makes Cao Yue happy, but other news makes him worried, because everything happened as the original history, Wu Sangui and Dolgon united, and Li Zicheng fought a big battle in a stone, and finally Li Zicheng's own rogue was defeated, and the leader of the peasant army led the remnants back to Beijing, and abandoned Beijing and fled back to Xi'an. He couldn't predict what history would do next. But he knows that everything in the future is closely related to what he does, and what he does is likely to directly affect the direction of history.

Cao Yue felt the heaviness he had never felt before, and he was psychologically burdened. But soon, he was full of fighting spirit, a sense of pride and responsibility to change history and completely change the fate of China, which made him want to do something as soon as possible and make everything develop as he wanted.

The situation in the north is like this: Wu Sangui changed his original intention after knowing that his old father was imprisoned by Li Zicheng and that almost all his family property was confiscated by the Liukou, and completely dispelled the idea of surrendering the Dashun Dynasty established by the Liukou.

Tang Tong hurriedly asked Li Zicheng for help. After Li Zicheng received Tang Tong's emergency rescue letter, he immediately convened the Minister of Civil and Military Affairs to discuss countermeasures, and finally decided on a strategy of both requisition and appeasement.

The war was urgent, Li Zicheng ordered the general Liu Zongmin to lead 100,000 troops, and then ordered Li Guo to lead 50,000 horses to follow, and he himself led 50,000 horses to prepare to capture Shanhaiguan in one fell swoop. Of course, Li Zicheng did not give up appeasing Wu Sangui, and he took Wu Sangui's father Wu Xiang with the army.

Li Zicheng did not know that Wu Sangui had borrowed troops from Dolgon, and Jiannu was going south with all his strength, and did not launch a quick attack on Wu Sangui's troops. All the horses were also very slow, and only after a few days arrived at the foot of Shanhaiguan and confronted Wu Sangui's troops on the west bank of the Shihe River.

After a small defeat in the first battle, Li Zicheng ordered Liu Zongmin's troops to storm the two cities of Dongluo and the northern wing, but they did not achieve results.

On the second day, Li Zicheng decided to launch a full-scale attack on Shanhaiguan, he ordered Liu Zongmin's 60,000 main forces to attack from the west of Shihe, and sent 20,000 Tang Tong to attack from the direction of a stone, preparing to attack Dongluo City, Xiluo City, and North Wing City of Shanhaiguan by detouring outside the pass. He himself led his army to attack Shanhaiguan from the front. After a day and night of fierce fighting between the two sides, Wu Sangui's army was already overwhelmed, and a part of the city guarding the northern wing surrendered to the Liukou.

However, the main force of the Guanning army was still based on the fortified city, and Wu Sangui strictly ordered his men and horses. Fight to the death.

After a few days of fierce fighting, both armies suffered heavy casualties, and although Wu Sangui's Guanning army had the Great Wall to prove it, the combat effectiveness of the Liukou was also very strong. Moreover, the strength of the army has an absolute advantage, and the Guanning army is gradually exhausted. Wu Sangui knew that the situation was critical, and if he continued to fight like this. Shanhaiguan was soon captured by the Liukou, and in desperation, he personally led some soldiers and horses and local squires to rush out of the gate, and asked Jiannu to join the battle immediately.

Dolgon accepted Wu Sangui's request and led Jiannu to garrison less than ten miles from the Shanhaiguan Pass, and easily defeated Tang Tong's troops.

After suffering a crushing defeat, the Tang Tongbu gave up resistance and surrendered to Jiannu.

When Dolgon led his troops to Weiyuantai, which was only two miles away from the Shanhaiguan Guancheng, he personally summoned Wu Sangui. He said to Wu Sangui: "You are willing to avenge the old master, and the righteousness is commendable." Give the leader the best of the best. The current affairs of the first emperor do not need to be said today, and they cannot bear to say it. But in the past it was an enemy country, but now it is a family. When our soldiers enter the customs, if they move a single grass or a grain, they will be executed by military law. Thou shalt tell the inhabitants not to be alarmed. ”

He also instructed Wu Sangui: "Er Hui, you can order the soldiers to tie their shoulders with white cloth as a number." Otherwise, what can be distinguished by the same Han people? Fear of manslaughter. ”

Subsequently, Dolgon ordered his men to attack the rogue led by Li Zicheng with all his might.

Prince Azig commanded more than 10,000 cavalry and entered the pass from the North Water Gate; Prince Yu Duoduo commanded more than 10,000 cavalry and entered from the South Water Gate. Dolgon led the main force of more than 30,000 cavalry to the palace and entered through the gate of Guanzhong. Dolgon was not completely sure of defeating the Liukou led by Li Zicheng, he knew that the Liukou was not weak in combat and was equipped with red-coated cannons, so he left himself a way back, and ordered nearly 20,000 people to be stationed in Huanxi Ridge to stand by.

After Jiannu entered the pass, he saw that the army of Liukou was lined up in a long snake formation from Beishan to the seaside, and under great joy, Dolgon immediately ordered the army of Jiannu to line up along the coastal area, and ordered Wu Sangui's army to line up on the right side of the array, ready to attack Li Zicheng's army with all his strength. It was also the heavens that helped Jiannu, and when Jiannu launched a full-scale attack, the wind blew up the dust in the sky, and the rogues didn't even notice that Jiannu had joined the battle.

When the dust rose from the sky, Dolgon shouted "God help me", and personally attacked Li Zicheng's troops with the Eight Banners cavalry. Defeated several times by the Ming army, Jiannu, who suffered huge losses, was holding back his strength to retaliate, and picked an opportunity to take advantage of the situation to attack, how could he let go of the opportunity? Whether it was the Jurchen Eight Banners, or the Mongolian Eight Banners, or the Han Army and the Korean Army, they all burst out with powerful combat effectiveness and roared towards the Liukou.

Although the Liukou resisted desperately, they were already exhausted after fighting with Wu Sangui's army for several days and nights. Jiannu, who successfully rushed to the rogue formation, was even more demoralized, and the rogue who was caught off guard suffered heavy losses. Liu Zongmin was wounded in the battle, and after he was wounded, his troops quickly routed, and a chain reaction led to the rout of the entire line.

Li Zicheng, who immediately supervised the battle in Xiaogangfu, saw that the defeat was decided, so he could only reluctantly order a retreat. Before announcing the retreat, Li Zicheng, who was furious, beheaded Wu Xiang in front of the horse, and hung his head on a high pole to show the public, and after returning to the capital, he killed 38 members of the Wu family. After retreating to Beijing, Li Zicheng proclaimed himself emperor in the Forbidden City, and the next day, Li Zicheng led his troops to flee Beijing in a hurry and retreated to Xi'an.

On the day of the Battle of One Stone, Dolgon named Wu Sangui as the king of Pingxi of the Qing Dynasty and ordered him to be the leader, chasing and killing all the way to the capital.

Wu Sangui, who originally didn't want to surrender to Jiannu, was already difficult to ride a tiger, and when he saw his old father's head being hung in front of the battle, he became more and more angry, and finally accepted Dolgon's division and began his career as a lackey of Jiannu. When Liukou retreated in a hurry to Beijing, he personally led the Guanning army to follow and pursue. (To be continued.) )