Did Genghis Khan invade Japan?

Genghis Khan had no plans to attack Japan. It was Kublai Khan who attacked Japan. This article about Guoxue.com in China says:

From 1274 to 10, in the eleventh year of the Yuan Dynasty, a Mongolian fleet consisting of more than 900 ships was ready to go in Hepu, Korea (now Gyeongsangdo, southeast Korea). The commander of this fleet is Mongolian Hu Dun. He was ordered by Kublai Khan to conquer Japan, a "small country" that refused to pay tribute to the Mongols. At that time, the Mongolian aristocrats who were not good at financial management had a great demand for luxury goods, and the imperial finances were often stretched. Two Khan Gui You and Mungo before Kublai Khan even mortgaged part of their debts with future trophies. Japan, which has been the world's largest producer and exporter of silver for hundreds of years, is naturally a piece of fat in the eyes of Mongolians who are in urgent need of a lot of gold and silver.

1274 The expeditionary force was a mixture of Mongolia, Han nationality and Korea. There are 25,000 Mongolians, 8,000 Koreans, and the boatmen and sailors are all Koreans. After the Mongolian army landed in Kyushu, it encountered stubborn resistance from the Japanese army and failed to go deep into the Japanese island. The Mongolian army stopped attacking because of a large consumption of bow and arrow materials, and Liu Fuheng, the deputy commander-in-chief, was injured by an arrow. At the post-war military conference, the Mongols overestimated the number of Japanese troops and chose to retreat. On the night when the Mongols withdrew, there was a strong wind on the sea. More than 900 warships, most of which were rolled up by the wind like eggshells, some hit the cliffs on the shore and were smashed to pieces. North Korea's general Kim ■ fell into the sea and died, and the morale of the Mongolian-Chinese Coalition forces plummeted. After the fleet sailed back to Hepu, after counting, the Mongolian fleet lost 13500 soldiers. Mongolia failed in its first attack on Japan.

In A.D. 1279, Kublai Khan sent an envoy to Japan again to persuade Japan to submit, and Japan did its best, which became the best excuse for Mongolia to conquer Japan again.

From A.D. 128 1 to the 18th year of Yuan Dynasty, Kublai Khan built a fleet with an unprecedented scale in the world at that time, with nearly 5,000 ships and 200,000 soldiers, including 45,000 Mongolians, 50,000 Koreans and 65,438+10,000 Han Chinese, most of whom were "newly attached troops" (Southern Song Dynasty troops). In May, the South Korean fleet went to sea first and arrived in Hakata Bay at the end of May. The main southern fleet followed closely and joined the South Korean fleet near Kyushu in early June. After that, the Yuan Army began to land in Jiulong Mountain. The expeditionary force met with more tenacious resistance this time. The Japanese army constantly repelled the attack of the Yuan Army and waited for an opportunity to organize a counterattack. Hong Chaqiu, commander-in-chief of North Korea, was killed after being captured, and several senior generals of Mongolia were killed one after another. The fighting lasted for more than a month. In late July, the Yuan army ran out of food and grass, and the Yuan army was in a dilemma.

However, the ultimate disaster of the Yuan Army is yet to come. On August 1 day, a violent hurricane suddenly blew in the Pacific Ocean, and its intensity far exceeded the last time. The storm lasted for four days, and the southern fleet of the Yuan Army was basically destroyed, and the northern fleet also lost more than half. On the fifth day, the wind stopped, and the commander-in-chief of the Yuan Army, Fan and other generals "chose a boat and left, abandoning more than 100,000 soldiers at the foot of the mountain." The Japanese army took the opportunity to attack, "all dead, more than 20,000 to 30,000, for its own sake." In this war, the southern fleet was completely annihilated. "A hundred thousand people have three ears." The second expedition of the Mongolian army also failed.

Although Genghis Khan did not personally plan to attack Japan, his imperial expansion policy did not rule out the possibility of eastward development, which I think still had a certain impact on Kublai Khan's attack on Japan.