The division of tigers and wolves means an army as fierce as tigers and as cold and strict as wolves, and it is a metaphor for the valor and tenacity of a fighting army.

It is a neutral word that can be used in a positive or negative sense, depending on where it is used. The Qin army of the Warring States period was such a brave and intimidating army. History records that when the Qin army fought, it was often bare-chested, holding a short sword, carrying a man's head in its left hand and holding a prisoner in its right arm, and pursuing the enemy in such a ferocious fighting style, chopping up vegetables and chopping up vegetables.

China's history of the five great tigers and wolves of the division is as follows:

Yue's Dewei army, Dewei army because of the outstanding achievements, ranked as one of the five elite troops in ancient China, Yue Fei organization of the beginning of the fight against the Jin Dynasty, the bitter south does not produce a good horse, and thus unable to form cavalry troops and Jin Wuzhu confrontation.

After two successful raids against the pseudo-Qi army by Niu Gao and Yang Zaixing, more than 15,000 horses were obtained. With this strong force, Yue Fei won a hundred battles. In the eleventh year of Shaoxing Jinghu Xuanfusi strike, reappointed Fu Xuan as the Ezhou imperial back of Weiwei army with the commander-in-chief.