Why did Genghis Khan fail to attack Japan?

Genghis Khan attacked Japan to cross the sea between China and Japan, so it is impossible for Genghis Khan's army to be brought to Japanese territory. He only took a part of the water army, but the Japanese army was dispersed at that time. The real failure was that the tsunami overturned most of Genghis Khan's ships. The first failure was due to the weather.

Genghis Khan set foot on the road of attacking Japan for the second time and failed. This is because there was a big typhoon that wiped out Genghis Khan's army. The army can't fight naturally, so Genghis Khan can only return to the Central Plains in despair. Genghis Khan's misfortune is really beyond the reach of ordinary people. The second exciting war was defeated by a typhoon.

Genghis Khan attacked the Japanese army only by land war. Because his troops are all on the grassland, they are good at fighting on horseback. On a rickety ship, it is not suitable for fighting. Even without this series of natural factors, Genghis Khan's expedition is likely to fail. After all, acclimatization is human nature.