1485, King Richard of England and Count Henry fought a decisive battle in Bosworth. This election will determine the new winner of the British throne. Before the war, the groom prepared horseshoe nails for the king. The blacksmith is busy hammering nails into Wang Jun's horse these days, and all the iron pieces are used up. Ask for it. The groom impatiently urged, "Your Majesty should take the lead and can't wait!" The blacksmith must cut an iron bar into four parts and then process it into a horseshoe. When nailing the third horseshoe, the blacksmith found that there were not enough nails. Ask for a nail. The groom said, "God, I heard the bugle call. I can't wait. " The blacksmith said, "Without nails, it is unstable." "Let it be, or the king will blame me." As a result, a nail was missing from the fourth paw of the king's war horse. At the beginning of the battle, the king led the army to the front. In the battle, an unexpected misfortune happened. His horse suddenly lost a horseshoe, and the king fell to the ground, and the frightened horse ran away. The king's misfortune demoralized the soldiers, who turned around and ran away. The count's army surrounded the king. In despair, the king waved his sword and sighed, "Oh, my God, my country was destroyed on this horse!" " "After the war, there was a folk song: a nail was missing and a horseshoe was lost. I lost a horseshoe and a horse. Lose a horse, lose a battle. Losing a battle ruined a dynasty.