Kamikaze (typhoon)

The kamikaze (Japanese: 神風^?) literally "divine wind" were two winds or storms that are said to have saved Japan from two Mongol fleets under Kublai Khan. These fleets attacked Japan in 1274 and again in 1281. Due to the growth of Zen Buddhism among Samurai at the time, these were the first events where the typhoons were described as "divine wind" as much by their timing as by their force. Since Man'yōshū, the word kamikaze has been used as a Makurakotoba of waka introducing Ise Grand Shrine.

The latter fleet, composed of "more than four thousand ships bearing nearly 140,000 men" 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.

In the first invasion, the Mongols successfully conquered the Japanese settlements on Tsushima and Iki islands. When they landed on Hakata Bay, however, they met fierce resistance by the armies of samurai clans and were forced to withdraw to their bases in China. In the midst of the withdrawal, they were hit by a typhoon. Most of their ships sank and many soldiers drowned.

During the time period between the first and second invasion, the Japanese prudently built two-meter-high walls to protect themselves from future assaults.

Seven years later, the Mongols returned. Unable to find any suitable landing beaches due to the walls, the fleet stayed afloat for months and depleted their supplies as they searched for an area to land. After months of being exposed to the elements, the fleet was destroyed by a great typhoon, which the Japanese called "kamikaze" (divine wind). The Mongols never attacked Japan again, and more than 70,000 men were said to have been captured.

...
Wikipedia