The first one is Battle of Red Cliffs. Speaking of it, I think everyone is familiar with it. This is also a famous battle in history to win more with less. At that time, the strength of Cao Cao was four times that of Zhou Yu. If Zhou Yufang wants to win, he must make sure that each soldier can beat four on average. It probably sounds cold. After all, Cao Cao's soldiers are not weak chickens. However, in the end, Zhou Yu won. At the same time, it formed a situation of tripartite confrontation among the three countries, which also stifled Cao Cao's ambition to unify the whole country.
The second is the battle of Guandu. The protagonist of this battle is the army led by Cao Cao and Yuan Shao. I have to say that Cao Cao is really a lean man in human history, and almost all famous battles are related to him. At this time, Yuan Shao's strength is five times that of Cao Cao.
After a year of fighting, with the help of sages, Cao Cao unexpectedly won the battle and basically won the northern hegemony.
The third is the Battle of the Giant Deer. It is also a famous battle in history to win more with less. It happened at the end of the Qin Dynasty, when the Chu army led by Xiang Yu was at war with Qin Jun, whose strength was 100,000 times greater than his own. The famous cross the rubicon happened in this campaign, which showed the extraordinary fighting spirit of Xiang Yu and his army. Eight months later, Qin Jun finally surrendered in Zhang Han, and the Qin Dynasty became cold.
In a word, these battles are called turning points, first of all, because their historical position determines the pattern of the times, and at the same time, their endings are unexpected at first, which just shows the overall quality and combat strength of the ancient army.