What does iron horse mean?

Sometimes it also refers to strong division. "Selected Works of Lu Shu": "The iron horse is a thousand cangues, Zhu Qi and Wan Li." Shan Li's Note: "The iron horse is an armored horse." Song Luyou's book wrath says: "It snows at night in Guazhou, and the iron horse is scattered in the autumn wind." Ming Wu Xinzi's Farewell to the Plantagenet: "Jin Ge Tie Ma, strong Confucian gentry, look at the great teachings in Hongshili."

The rise of cavalry

Iron cavalry is also called cavalry or heavy cavalry, and armored army and light cavalry constitute two major categories of cavalry. China's cavalry originated from the Huns. At the end of the Warring States period, King Wuling of Zhao carried out Khufu's riding and shooting, reformed the military system, ordered soldiers to wear tight Khufu, learned to ride and shoot, and created the first cavalry in China.

From the Warring States Period to the Qin and Han Dynasties, cavalry were light-mounted. "Light" means that the cavalry is based on the principle of quick and long-range attack, with light equipment and horses without armor. The knight only has two pieces of armor (armor or leather armor) on his chest and back. The knight's weapon is a bow and arrow plus a machete, or only a halberd (and a crossbowman who only uses a crossbow).