The Japanese are usually accredited with the development of kamikaze tactics in modern warfare. This is thanks to the dramatic attacks they staged on the Americans in WWII. The rituals that the kamikaze pilots used to prepare themselves for certain death also contributed to the impression that such attacks were part of an ancient and unbroken tradition. They were not.
The kamikaze attacks launched by the Japanese were acts of desperation, when the war was going against them and their home islands were under direct attack for the first time since the attempted Mongol invasions in the late 13th century. At that time a great typhoon—a "god wind" (kamikaze)—had saved Japan, hence the name of the 20th century suicide attackers.
But rather than the Japanese, who merely branded the technique, it is the Chinese who should get the main credit for its innovation; especially since it appears that the Chinese also "schooled" the Japanese in kamikaze tactics by using them against the Japanese, after they had pushed deep into China.