Divination was needed before ancient wars. Besides the "Chen Guang Uprising", what other examples are there?

In 645 BC, Qin Jin and China fought for the territory of Hexi. The place of the war was Hanyuan on the west side of the Yellow River, which was called "the Battle of Hanyuan" in history. This is the first armed conflict after "the goodness of Qin and Jin". Both sides can't stand it, there is no way but to turn their faces. Jin asked his ministers, "Qin people are rampant in our country. How should we teach them a lesson?" Zheng Qing said, "That's because your master broke his word, so people came to punish you! You should make amends to others, please, ... "

Gong Hui was furious and said, "I am a country ten times as big as Qian Qian, but I am still afraid of them." Somebody please. Let's get this straight first! This guy with his elbows out is always in my way! "All doctors suggest that it is not good for the army to kill the general before sending troops. Hate it, but celebrate Zheng! I will spare your life for the time being today. Dare to hit with your heart, watch your head! The horse that Jin rode was called Xiao, which was a gift from Zheng Guojun. This kind of horse is very beautiful, small in size, moist in color and comfortable in gait. It is a pet horse with strong ornamental value, and it is very popular on weekdays, so I rushed this kind of horse to fight.

Zheng Qing also advised him: "To go to war, you must use your own horse. Only local horses born and bred are easy to control, familiar with the road and not surprised when things happen. It's probably not good for you to use this fancy horse when you go to the battlefield today. " Gong Hui scolded, "shut your crow mouth! If you dare to talk more, I will kill you! " During the Spring and Autumn Period, there were five procedures for sending troops to fight: offering sacrifices, divination, instructing teachers, offering victory and drinking. Sacrifice is to tell the ancestors of heaven and earth before going out to war in order to get the blessing of the gods. Divination is to predict the outcome of the war, plan the battle plan and choose the best time.

Offering victory means that after the battle, everyone comes to report the merits and give the captive population and materials. Drink it, that is, go back to the celebration dinner, reward it, and let's not get drunk together. Among these links, one that is directly related to the victory or defeat of the whole war is "divination". Divination was extremely important in the war in the Spring and Autumn Period, and not a casual person could hold this important position. At that time, fortune tellers were mostly a combination of scientists, mathematicians, historians and primitive wizards. Because fortune tellers should not only have mysterious foresight, but also have rational analysis and judgment, and also have high prestige and incitement.