Historically, the emergence of the position of "military adviser" can be traced back to the Warring States period. "Historical Records, Sun Tzu's Art of War and Biography of Wuqi" said: "So (Tian) avoided Sun Tzu. Wang Wei asked the art of war and thought he was a teacher. Later, Wei attacked Zhao, who was in a hurry and asked Qi for help. Qi Weiwang wanted to surrender to Sun Bin, but declined politely, saying, "The sin is unforgivable." So I took Tian Ji as my general and my grandson as my teacher. Living in a chariot, sitting is a trick. "
The heyday of military advisers should be the Three Kingdoms period at the end of the Eastern Han Dynasty. The TV series "Military Division Alliance" describes the magical abilities of Sima Yi, Zhuge Liang, Yu Xun and Guo Jia.
In the world of talented military advisers, only a handful of people can go down in history. Most military advisers are often called "dog head military advisers", so why are they called dog head military advisers instead of pig head military advisers and horse head military advisers?
According to ancient legends, after Pangu opened the sky, the earth was occupied by terrans, orcs and dwarves, so there are often legends of monsters in later generations. For example, the "cow head and horse face" in hell. "Diming" in He Dian is the legendary orc, which should be the head of a dog, so it was named "the head of the dog". This kind of address has no other meaning except his status. However, after being misused by later generations, the meaning of "metaphor for people who love ideas but have poor ideas" appeared. So there is the origin of the word "dog head"!
Later generations used the word "dog head strategist" to describe people who love to make suggestions but have poor ideas. It is also a metaphor for people with bad ideas.
The tenth time in the "Hall of Harmony" in Zhang Nanzhuang, Qing Dynasty: "The next day, the ghost declared to enter the DPRK and enjoyed it; He named the living dead a general with hair on his head, and the ghost in the ground was a dog-headed strategist. "