How to treat Battle of Red Cliffs's influence on the overall pattern of the three countries?

To some extent, Battle of Red Cliffs may not have prevented the arrival of a prosperous era, but it certainly prevented Wei from ruling the world. After the war, the three pillars of the Three Kingdoms period began to form. For Cao Wei, this war was originally the best opportunity for Cao Cao to unify the world. After Battle of Red Cliffs's failure, Cao Cao basically had no hope of unifying the world.

Before Battle of Red Cliffs, Cao Cao calmed the situation in the north with great momentum, and planned to capture Suzhou in one fell swoop. At that time, if Cao Cao defeated Battle of Red Cliffs, Cao Cao's family was dominant, and no one could compete with him. At that time, the whole world was in Cao Cao's pocket, and there would be no Three Kingdoms behind. However, Cao Cao's failure in Battle of Red Cliffs greatly damaged his motivation and forced him to return to the north to practice in order to survive. Therefore, he also lost the possibility of reunifying China in a short time. On the contrary, Liu Bei and Sun Quan used this opportunity to develop their own strength. After Liu Bei borrowed Jingzhou from Sun Quan, he began to develop in Yizhou based on Jingzhou. His strength increased rapidly. Although Sun Quan failed to attack Hefei many times, he also bought time for the development of Suzhou and planned to take back Jingzhou, which he lent to Liu Bei.

After the war, the embryonic form of the three-point world began to appear, laying the groundwork for the confrontation between the three countries. After Battle of Red Cliffs, the pattern of the whole southern region has changed. As a result, Sun and Liu grew bigger and bigger, and Cao Cao could only watch the enemy grow stronger and was unable to conquer it again. If Cao Cao wins this battle, Sun and Liu's main forces will be wiped out, and other small warlords in the south will either go smoothly or be wiped out one by one. Because of the failure of Battle of Red Cliffs and Cao Cao. The Civil War lasted for decades, and the population decreased by several million.

After the Chibi Conference, Liu Bei occupied Jingzhou, Baotu Mountain and Yizhou, and initially implemented Zhuge Liang's strategy of "Long Zhong Dui", which had great development potential. Sun Quan continued to control Suzhou. Although the attack on Hefei failed and the army was lost, its strength did not decrease; Cao Cao is defeated, but his strength is still in the north! The three forces are entangled with each other, and the foundation of the three pillars is initially determined!