Zhou Yu of Wu was able to resist the Wei army at that time, but why didn t he take the initiative to

Because Zhou Yu was loyal and obeyed Sun Quan's orders, but he did not have all Sun Quan's trust. Zhou Yu helped Liu Bei Chibi to break Cao Cao, and then attacked Nanjun with Cheng Pu, but afterwards he was only a partial general, with 4,000 troops.

He didn't have Sun Quan's full trust, so Sun Quan didn't support him enough, and he died too early.

Resisting and being able to take the initiative to expand the territory are two different things, and the latter is much more difficult, after all, it is more difficult to attack a city than to defend it.

In the official history, Zhou Yu died in the process of attacking Wei, so it was not that he didn't take the initiative to fight, but that he died before he could fight.

The answer is: not no, but according to the needs of the strategy to carry out political games and military offense and defense, coupled with the situation of the three kingdoms, so that Sichuan and Shu can spend their strength to attack Wei, and they can reap the benefits.

The main reason is that the west is contained by Shu Han, if the whole country takes the initiative to attack, it will cause the country to be empty, Shu Han will definitely take advantage of the weakness, and Soochow will have the risk of losing the country.

Because Zhou Yu did not fully gain Sun Quan's trust, on the one hand, there were internal contradictions, and on the other hand, he was restrained by the Shu State, so he could not expand the territory well.

On the one hand, Shu Han restrained him, and on the other hand, it was an internal disagreement. Sun Quan inside didn't really trust him.

Because the goal of Shu Han is to exterminate the Han thieves and restore the Han Dynasty, and Cao Wei's regime is to usurp the Han and stand on its own, so Shu Han constantly attacked Wei in the hope of recapturing the Central Plains and reviving the Han Dynasty, and Wu had surrendered to Wei before, and later began to rebel, so Cao Pi would continue to attack Wu;

The order of the three-legged triumph is that Cao Wei first coerced Emperor Xian of Han to abdicate, and then Cao Pi proclaimed himself emperor in Luoyang and established Cao Wei, while Liu Bei later proclaimed himself emperor in Chengdu, and the founding name was "Han", continuing the orthodoxy of the Han Dynasty, and King Wu of Sun Quan was canonized by Cao Pi, and only later did he dare to establish himself as emperor.

And the war between Shu Han and Cao Wei was not overnight, it was when the Eastern Han Dynasty had not yet perished, Cao Cao and Liu Bei had been against each other, Cao Cao began to bring the Son of Heaven to Xuchang in 196 A.D. and began to coerce the Son of Heaven to order the princes, and later Liu Bei participated in the "Cloth Belt Edict" incident and broke with Cao Cao, the two sides have been fighting more than once, Liu Bei has been at a disadvantage because of insufficient military strength in the early stage, and later Zhuge Liang formulated a "three-point plan for the world" for Liu Bei after the "Three Visits to the Thatched House", so after the end of the Battle of Chibi, Liu Bei Group has been in accordance with the "Longzhong pair" strategy;

In the end, after Liu Bei seized Yizhou, the three-point world was basically formed, and then in the "Battle of Hanzhong" Liu Bei for the first and only time, through his own command, or defeated Cao Cao in a duel on the frontal battlefield, so Cao Cao suffered heavy losses and had to give up Hanzhong, in the same year Liu Bei called himself "King of Hanzhong", Ji Han's strength reached its peak, but because Sun Quan later attacked Jingzhou, Guan Yu died in battle, so Liu Bei used the strategy of the Northern Expedition to defeat Wu, and later died of illness, so Shu Han had to rest for five years, Later, the Northern Expedition was continued by Zhuge Liang.

And the reason why Cao Wei always attacked Wu was because during the Cao Cao period, Sun Quan had asked for surrender, and then the Battle of Yiling broke out, Sun Quan surrendered to Cao Pi, so Cao Pi was crowned "King of Wu", and later Sun Quan united with Shu Han again, so Cao Pi carried out three conquests of Wu for treason.

Shu Han kept attacking Wei, and the reason why Wei kept fighting Wu was because Shu had the danger of mountains and rivers, which was easy to defend and difficult to attack, which was not conducive to attacking.

Shu Han constantly fought Wei in order to increase the population. To obtain food, Shu Han was very poor, so Wei would not attack a very poor country, so he turned his head to attack the relatively wealthy Wu State.

1.The foundation of Shu Han was to support the Han Dynasty, so it was necessary to fight the Wei State.

2.Wu surrendered to Wei at the beginning, and then rebelled again, so Wei had to fight Wu all the time.

3.Shu is difficult to fight, and can only fight the relatively easy Dongwu, and Dongwu is richer than Shu.

First of all, there are few people in Dongwu, and the generation after Zhou Yu and Lusu is not as good as the generation, and the Dongwu started as an ancestral foundation, and the actual combat experience is not as rich as the other two.

Because Eastern Wu was inferior to Wei in terms of military strength and overall strength, and its talents could not catch up with Shu, it was the least capable of unifying the world.

Because of the location, the troops of Dongwu are not very strong, there are defects in the war, and the civil strife in Dongwu is continuous, and it is difficult to take care of other things, let alone unify the world.

Because the geographical location of Soochow is very poor, and the military strength it has is also very weak, it is very difficult to unify the world.