In the fourth year of Jian'an (199), at this time, Sun Ce had already controlled three of the original six counties of Yangzhou, and firmly controlled Danyang County, Wu County, and Huiji County.

And after Sun Ce became bigger, he also began to prepare to avenge his father Sun Jian, and the crusade against Jingzhou has begun.

On the other hand, after the death of Liu Xuan and Yuan Shu, the situation has also changed a lot, Lujiang Taishou Liu Xun once annexed Yuan Shu's old department, plus there is also the help of the famous Liu Ye next to him, his power has increased greatly, and Sun Ce is also deeply troubled by it.

【Defeat Liu Xun】

Liu Xun, Zizitai, Lang Evil Man, one of the generals under Yuan Shu, Yuan Shu once gave him the position of Lujiang Taishou promised to Sun Ce, and Cao Cao is an old friend.

In the fourth year of Jian'an (199), Sun Ce was ordered by the imperial court to prepare to crusade against Yuan Shu again, which coincided with his death from illness, and his command collapsed.

According to the "Biography of Jiangbiao", at that time, Sun Ce was edicted to crusade against Yuan Shu and Liu Biao together with Sikong Cao Gong, Wei General Dong Cheng, Yizhou Mu Liu Zhang and others. Sun Ce had just organized an army to crusade, coinciding with the death of Yuan Shu, Yuan Shu's younger brother Yuan Yin, son-in-law Huang Yi and others did not dare to garrison Shouchun because they were afraid of Cao Cao, so they led Yuan Shu's troops and took his coffin and wife to Anhui City and defected to Liu Xun, the Taishou of Lujiang in Anhui City.

But Liu Xun didn't have much food and couldn't support so many people, so he sent his younger brother Liu Kai to ask for help from Yuzhang Taishou Huaxin. And Yuzhang County has never been rich and has not much food, so Hua Xin sent officials and Liu Kai to go to Haidusk Shangyu, so that the commanders of the sect where a total of 30,000 Hu rice to Liu Kai, as a result, Liu Kai went for several months, and finally got thousands of Hu rice, Liu Kai then reported to Liu Xun, told him everything, and hoped that Liu Xun would lead troops to get food. After Liu Xun got Liu Kai's letter, he personally led the army to the bottom of Haiduyi, but it was known to the commanders, they abandoned the city and fled, took almost everything away, and Liu Xun got nothing.

On the other hand, after Liu Xun collected the old department of Yuan Shu, his power was greatly enhanced, which had aroused Sun Ce's vigilance, after learning that Liu Xun begged for food and hit a wall in Shangyu, Sun Ce sent envoys to ask Liu Xun to attack Shangyu City on his behalf with humble words and treasures, Liu Xun believed in Sun Ce, and was very happy to receive the treasure, and Sun Ce's strategy was easy to hit, and he didn't even listen to Liu Ye's advice next to him.

When Liu Xun attacked Shangyu, Sun Ce was in the west to crusade against Huang Zu, after Shicheng learned the news, he first sent his brother Sun Ben and Sun Fu to lead 8,000 soldiers to Pengze to wait for Liu Xun, and he and Zhou Yu led 20,000 people to attack Wancheng, because Liu Xun was out of the expedition and weak inside, Sun Ce succeeded in a blow, Yuan Shu, Liu Xun's family and his subordinates, a total of more than 30,000 people were captured. Later, Sun Ce made a list of Li Shu, a native of Runan, as the Taishou of Lujiang, and gave him 3,000 soldiers to guard the city of Anhui, and moved all the others to Wu County.

In Wancheng, Sun Ce and Zhou Yu also got the big and small Qiao sisters, of which the big Qiao belonged to Sun Ce, and the little Qiao belonged to Zhou Yu.

Liu Xun hurriedly returned to the aid after learning the news, and was defeated by Sun Ben and Sun Fu in Pengze, so he retreated into the Chu River, from Xunyang to Zhimating, and got the news that Anhui City had been conquered by Sun Ce, so he went to Xisai, and after arriving in Yi County, he built a fortress to defend himself, and sent someone to Liu Biao to tell him about the urgency and ask Huang Zu for help. Huang Zu then sent his son Huang Jie to lead a fleet of 5,000 people to help Liu Xun, and Sun Ce led his troops to defeat Liu Xun again, and Huang Jie also fled. This strategy resulted in more than 2,000 soldiers under Liu Xun's command and 1,000 large and small ships, and Liu Xun and Liu Kai also failed to leave the south and go north to join Cao Cao.

Lujiang County was thus owned by Sun Ce.

【Defeat Huang Zu】

In history, Liu Biao, Huang Zu and Sun Ce had a grudge against their father, and Sun Ce has always been obsessed with this and has the intention of revenge. Then the imperial court ordered him to crusade against Yuan Shu, Liu Biao, Sun Ce was going to crusade against Yuan Shu first, but it happened that Yuan Shu had died of illness, so he turned to crusade against Jingzhou, on the way to learn the news of Liu Xun's attack on Shangyu, and immediately turned to seize Liu Xun's Lujiang County, and defeated Huang Zhu who came to help Liu Xun, Sun Ce took advantage of the victory to pursue, crusade against Huang Zu.

On December 8, the fourth year of Jian'an (199), Sun Ce entered Shaxian (now north of Jiayu County, Hubei). Liu Biao sent his nephew Liu Hu and Han Na, a native of Nanyang, to lead a spear team of 5,000 people to support Huang Zu. On the 11th, Sun Ce led Zhou Yu, Lu Fan, Cheng Pu, Han Dang, Huang Gai, Sun Quan and other generals to advance at the same time, and Huang Zu's army was defeated, Huang Zu was almost wiped out, Liu Hu and Han Na were killed in battle, Huang Zu fled alone, more than 20,000 soldiers were killed in battle, 10,000 people were drowned, and Sun Ce captured 6,000 warships. (Note 1)

Huang Zu was almost slumped after that, and could no longer pose a threat to Sun Ce, so he could only hold on in Jiangxia, and Huang Zu was Liu Biao's right-hand man, and his defeat was also a huge blow that Liu Biao could not accept.

【Relationship Gradient】

After conquering the city of Anhui, Sun Ce not only took advantage of the victory to pursue and attack Huang Zu, but also sent Sun Quan to attack Chen Deng in Guangling, Xuzhou, with great intentions to expand his sphere of influence to Xuzhou.

After the elimination of Liu Xun, the old forces of Yuan Shu in the north of Yangzhou have been basically eliminated, and Guangling County in Xuzhou and Wu County in Yangzhou are only separated by a river, and the geographical location is very important, and Guangling Chen Deng is still the nephew who secretly plotted against Sun Ce and Chen Yu, so Sun Ce cannot rest assured about it.

But Chen Deng is not Liu Xun, Sun Quan is not Sun Ce, although Chen Deng only has one county, but he is much more difficult than Liu Xun, Chen Deng not only helped Liu Bei ascend to the position of Xuzhou pastor in his early years, but also later helped Cao Cao eliminate Lu Bu, and is also a powerful character who can write and fight. Therefore, despite the superiority of Sun Quan's troops, he still suffered a lot in Guangling County, but returned in vain.

And this incident also marks the change in the relationship between Cao Cao and Sun Ce.

In the early days, Sun Ce had just become independent from Yuan Shu and urgently needed foreign aid, so he was respectful to the imperial court, needed the righteousness of the Son of Heaven, and needed Cao Cao's support, and by the fourth year of Jian'an (199), Jiangdong had been basically swept away by Sun Ce, this Cao Cao didn't want to turn his face with Sun Ce because of Yuan Shao's threat, but Cao Cao still didn't appoint Sun Ce as the Yangzhou Assassin or Yangzhou Mu considering Sun Ce's potential threat, which made Sun Ce's rule in the Jiangdong region unjustifiable, and Cao Cao also sent Yan Xiang as the Yangzhou Assassin after Yuan Shu's death, Directly took over Shouchun and Jiujiang County, in order to take into account the prestige of the imperial court, Sun Ce had to stop going north, but Sun Ce's desire for Jiangbei did not stop, which is why Sun Ce asked Sun Quan to send troops to attack Guangling County.

After Sun Quan's defeat, Sun Ce did not stop his march north, he defeated Huang Zu and alleviated the threat from the west, Sun Ce believed that he would return one day, and he was also confident that Jiangdong was just his starting point.

Note 1: Wu Lu said: "The ministers begged Huang Zu and went to Shaxian County, the ancestral place, on December 8. Liu Biao sent the general to help the ancestors and came to Quchen. On the 11th, the minister led the Jiangxia Taishou Xing Jianwei Zhonglang General Zhou Yu, the Guiyang Taishou Xingzheng Zhonglang General Lu Fan, the Lingling Taishou Xing Dang Zhonglang General Cheng Pu, the Xingfeng Captain Sun Quan, the Xingxiandeng Captain Han Dang, and the Xingwufeng Captain Huang Gai at the same time. Straddle the horse oak Chen, hand drumming, in order to fight together. The officials are excited, enthusiastic a hundred times, their hearts are full of fruit, and they compete for their lives. Crossing the heavy trench, fast as flying. The fire is put on the wind, the soldiers are under the smoke, the bow and crossbow are concurrent, the arrows are rained, and when the sun is rising, the ancestors are festering. The blade is cut off, the fire is burned, there is no life before, but the ancestors burst away. Seven men and women were given their wives, more than 20,000 tigers and (wolves) Han Xi had been lowered, more than 10,000 people drowned in the water, more than 6,000 boats, and a mountain of property. Although the surface is not a bird, the ancestor is cunning, for the heart of the cousin, out of the minions, the surface of the owl, with the breath of the ancestors, and the ancestral family members, sweeping the floor, the table is lonely, and the ghost is a walking corpse. Cheng is the holy pilgrimage to the gods and martial arts, and the ministers are guilty of revenge, and they are diligent. ”