The Kamikaze (神風, Japanese for divine wind), were a pair or series of typhoons that are said to have saved Japan from two Mongol fleets under Kublai Khan that attacked Japan in 1274 and again in 1281. The latter is said to have been the largest attempted naval invasion in history whose scale was only recently eclipsed in modern times by the D-Day invasion of allied forces into Normandy in 1944.
The first invasion devastated the Japanese. The battle took place on the beaches where the two forces met. The Mongols had several advantages; The Japanese were overwhelmed and began to retreat. Not knowing they had won, the Mongols feared the Japanese were coming back with reinforcements and also retreated.
During the time period between the first and second invasion, the Japanese built walls to protect themselves from future invaders.
Seven years later, the Mongols returned. They found themselves unable to find any suitable landing beaches due to the walls. The fleet stayed afloat for months as they depleted their supplies and searched for an area to land. After months of being exposed to the elements, the fleet was destroyed by a great typhoon. The Japanese called it Kamikaze. The Mongols never returned. The Japanese were saved by the walls they had built and nature's fury.
In popular Japanese myths at the time, the god Raijin was the god who turned the storms against the Mongols. Other variations say that the god Fūjin or Ryūjin caused the destructive kamikaze.
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