Sun Quan was the one who lived the longest in Cao's grandson Liu Zhong, and from 200 AD when Sun Quan came to power until his death in 252 AD, Sun Quan can be said to be a witness and witness to the history of the Three Kingdoms (Cao Cao died in 220 and Liu Bei died in 223). Nevertheless, Sun Quan was actually a person without strategic vision, and it was Sun Ce, Zhou Yu, Lu Su, and Lü Meng who really determined the strategy of Eastern Wu.

Sun Ce - compete with the world
Zhang Zhao and others said: "China's chaos, the wu and yue people, and the solidity of the three rivers are enough to see success or failure." Brother of the Lord! Hu Quan Pei said in a seal: "The people of Jiangdong are determined between the two Chens, and the qing is not as good as me; the meritocracy is appointed, and each of them does his best to protect Jiangdong, I do not know the secretary." "Died at night, at the age of twenty-six. - "Romance of the Three Kingdoms, Sun Breaks the Tale of the Rebels"
The above passage is Sun Ce's heartfelt words before his death, and the meaning expressed to Zhang Zhao and others is: Now that the Central Plains is in chaos, Jiangdong has been initially pacified, and with the three rivers solidifying Wu Yue's people, at least we can watch the success or failure of the world, wait for the opportunity, and hope that you can help my brother well.
The meaning expressed to Sun Quan was: Originally, I wanted to take advantage of the battle between Cao Cao and Yuan Shaoguandu to sneak up on Xu Du and welcome Emperor Xian of Han to our Jiangdong, so as to achieve a great cause. Unfortunately, I am about to hang up now, your ability is not to forge ahead, make a good relationship with the Jiangdong Shi Clan, and first keep Jiangdong from losing it.
Sun Ce is like a shining meteor, crossing a short and beautiful dazzling color over the history of the Three Kingdoms, although it has always been said that Sun Quan has "passed through three generations" when he succeeded, in fact, the real founder of Jiangdong is Sun Ce, and Sun Jian has hardly done anything. Sun Ce's bravery and invincibility of the "Little Overlord" made Cao Cao have to sigh that "it is difficult for Yi'er to compete". If Sun Ce does not die, Jiangdong will naturally forge ahead and go north to the Central Plains.
Zhou Yu - Northern Ketuye
Yu NaiJing saw Quan Yue: "Now Cao Cao is newly folded, and Fang is worried, and he has not been able to deal with the general Company. Beggar and Fenwei both forge ahead of Shu, and get Shu and Zhang Lu, because they stay fenwei to stick to their land, so as to help Ma Chao. Yu also held Xiangyang with the general to rub the exercise, and the north could also be tu. "Permission. - "Romance of the Three Kingdoms, Biography of Zhou Yu"
After the Battle of Chibi, Zhou Yu continued to go north to lay siege to Jiangling in a year and occupy Nan County. In 210, Zhou Yu proposed to Sun Quan his plan for a western expedition: to occupy Yizhou, annex Hanzhong, and marry Ma Chao in order to cao Cao. After Sun Ce's death, the most enterprising person in Jiangdong was Zhou Yu, who had long regarded Yizhou as a bag, straddling Jing yi and ruling the Yangtze River, competing with Cao Cao.
Careful readers will find that Zhou Yu's strategic plan does not mention Liu Bei, and Zhou Yu has forgotten Liu Bei? Of course, it is impossible, in Zhou Yu's view, Liu Bei is a tyrant, will not be willing to be subordinated, sooner or later will become a stumbling block for Eastern Wu. Therefore, Zhou Yu must get rid of Liu Bei and then fight cao again. Unfortunately, Zhou Yu also died young, and his strategy of taking Yizhou in the west failed to be implemented.
Lu Su - the pole of the Yangtze River, the establishment of the emperor to seek the world
Su said, "Emperor Xigao wanted to honor the Righteous Emperor and did not gain it, and Xiang Yu was harmed." Cao Cao now, Xiang Yu in the past, why should the general be Huan Wenhu? The Han Dynasty could not be revived, and Cao Cao could not be eliminated. For the sake of the general, only Dingzu Jiangdong can watch the world's provocations. ...... Eliminate Huang Zu, enter Liu Biao, and even the Yangtze River is extreme, according to it, and then build an emperor to try to the world, and this high emperor's business is also. ——" Romance of the Three Kingdoms Lu Su Biography
In 200 AD, under the persuasion of Zhou Yu, Lu Su followed Zhou Yu to Jiangdong, and Sun Quan asked Lu Su for advice. Lu Su replied, "In the past, Emperor Geng Gengzhong of Han Gao wanted to honor Emperor Yi and in the end he did not succeed, because Xiang Yu harmed Emperor Yi. Now Cao Cao, just like Xiang Yu in the past, how can you become the Duke of Qi Huan and the Duke of Jin? In Lu Su's private opinion, the Han court could no longer be revived, and Cao Cao could not be eliminated at once. ”
"For the sake of the general, there is only dingzu Jiangdong to watch the changing situation in the world." The situation in the world is like this, and it is natural that one side will not attract suspicion and hatred. Why? Because the north is an eventful autumn. You just took advantage of this change to eliminate Huang Zu, enter Liu Biao, try your best to occupy all the places south of the Yangtze River, and then call the emperor jian in order to seize the world, which has established a great cause with Han Gaozu! ”
Some people say that Lu Su proposed "three divisions of the world" earlier than Zhuge Liang, in fact, Lu Su's real idea is not to divide the world into three parts, but also to rule with the north, and then call the emperor to fight for the world, which is actually the strategy of dividing the world. However, before the second division, the danger was to dingzu Jiangdong, and then Xu Xutu took Jingzhou and Yizhou, Cao Cao went south to Liu Biao and died of illness, Lu Su adjusted his strategy in time, and chose to ally with Liu Bei to resist Cao Cao, which was a timely adjustment of strategy and a very wise choice.
After Zhou Yu's death, Lu Su suggested that Sun Quan give up the middle road to Liu Bei and lend Nan Commandery to Liu Bei, so that Liu Bei could share the pressure from Cao Cao, and Sun Liu's alliance made Cao Cao only look at Jiang Xing and sigh. When it was, it seemed unrealistic to want to get rid of Liu Bei's entire territory on the Yangtze River, so Lu Su could only do his best to maintain Sun Liu's alliance, at least to be invincible first.
Lumont – Realist
Meng Said: "Now that Cao is far away in Hebei, he has newly broken through the Yuan, and he has not had time to look east." Xu Tu guarded the soldiers, smelled nothing, and went to self-keke. However, the terrain is land- and the horses are ridden, and the Supreme Being has Xuzhou today, and he will come to fight after the end of the exercise, although he will guard it with 70,000 or 80,000 people, he should be worried. It is better to take the feather, all according to the Yangtze River, the situation is better. - The Biography of Lü Meng, Romance of the Three Kingdoms
When Lu Su was alive, Lu Su and others believed that Cao Cao was dominating the north, that the war had just begun, and that Sun and Liu's families should rely on each other and hate each other. Lü Meng, who had different opinions, once presented Chen Secret Scheme to Sun Quan, saying: "If the general Sun Jiao is now allowed to hold Nan Commandery, Pan Zhang will garrison the White Emperor, and Jiang Qin will lead a mobile force of 10,000 people to patrol up and down the Yangtze River, and the enemy will run wherever it appears, while Wei Chen and I will occupy Xiangyang forward for the lord." Arranged like this, what else are you worried about Cao Cao? What else do you rely on Guan Yu? ”
"Besides, Guan Yu and their monarchs, relying on their cunning and strength, are capricious everywhere, how can they be regarded as sincere good friends?" The reason why Guan Yu did not immediately invade our territory to the east now is that the lord is incomparably holy, and we generals are still alive. Now if we don't take advantage of our strong time to beat them, once we die, is it still possible to exert our strength? Sun Quan was deeply absorbed in his strategy.
Sun Quan then told Lü Meng about his intention to capture Xuzhou, and Lü Meng replied: "Now that Cao Cao is north of the Yellow River, he has pacified Youzhou and Jizhou, and there is no time to take care of the east. However, Xuzhou only has land access, is the place where Xiao Yong cavalry gallops, today get Xuzhou, within ten days Cao Cao will come to fight, with 70,000 or 80,000 people are also difficult to defend. It is better to capture Guan Yu and occupy the entire Yangtze River Basin, and the situation will be even stronger. ”
Lü Meng was born in a cold door, and although his cultural level improved greatly after "Sun Quan's persuasion", Lü Meng was still a proper realist. Lü Meng realistically believed that capturing Jingzhou and killing Guan Yu was the most beneficial to Eastern Wu, so Eastern Wu betrayed the alliance and attacked Jingzhou (how to judge this, everyone has their own opinion).
Sun Quan was a man of little opinion, and the strategy of Zhou Yu, Lu Su, and Lü Meng, the three governors of the Huaisi clique (Lu Xun liked to defend), represented the founding strategy and strategic direction of Eastern Wu. Lu Su was the most strategic, Zhou Yu was second, and Lü Meng was a realist, and their alternation also promoted the change of Eastern Wu's strategic choices.
References: Notes on the Romance of the Three Kingdoms pei song, Lü Simian's History of the Three Kingdoms