Since the Tang Dynasty sent envoys to the Tang Dynasty, subtle changes have taken place in Sino-Japanese relations. The Japanese gradually changed from learning from China and sending envoys to friendship, and turned to self-reliance and anti-customer. By the time Japanese pirates repeatedly harassed the southeast coast in the Ming Dynasty, Sino-Japanese relations had begun to deteriorate. So what was the relationship between the two countries in the Yuan Dynasty before the Ming Dynasty?

Bai Pu, one of the "Four Masters of Yuan Opera", once wrote a poem "Magnolia Slow", which mentioned that "Fu Bo made brilliant contributions. What happened to tears of coix lachryma? Laugh at repairing Japanese slaves, compete with the country for profit, and play tricks on the Central Plains. Distinguish a chess game, teach people and watch the teacher speak. To ask Peng Bohai, why is it like a chicken and dog paradise? " The word "Japanese slave" is also called "anti-state", which clearly shows that there was discord and even war between China and Japan in the Yuan Dynasty.

The so-called "Fu Bo's meritorious service" is based on the conquest of Vietnam by Ma Yuan, the general of Fu Bo in the Han Dynasty, which generally refers to the eastward expedition of the general of the Yuan Army to Japan. The whole word vaguely expresses the Yuan Dynasty's war of conquering Japan, but what does this sentence mean? This requires further contact with the history of the Yuan Dynasty to explore and ponder some historical materials.

According to The History of Yuan Dynasty (Volume 2008), "Japan is in the east of the East China Sea, and was called a slave country in ancient times. Or Yun hates his old name, so he changed his name to Japan. " In fact, the ancient name of "Japanese slave" in Bai Pu's ci originated from the Han Dynasty.

In 57 AD, the "King of Japan" in the south of the Japanese archipelago sent envoys to pay tribute, hoping to establish his own power and throne through the ministers of the Han Dynasty, so he asked the Emperor Wu of the Han Dynasty to grant him a seal, and Guangwu Emperor granted him the title of "King of Japanese Slaves". It was not until the Xianheng period of the Tang Dynasty that the "slave country" sealed by the Han Dynasty was renamed "Japan" and gradually became independent.

It is not difficult to find that the Sino-Japanese War of 1894-1895 in Baipu's Ci has happened twice, both during the reign of Kublai Khan in Yuan Shizu. Kublai Khan had no intention of invading Japan. During the three to nine years of the Yuan Dynasty (1266- 1269), envoys were sent to Japan many times, which meant good neighborliness and friendship.

At that time, as far as the Great Yuan Empire was concerned, the iron hoofs were spread all over Europe and Asia, and the world was conquered with one whip. At all, Japan, a tiny place, was ignored, thinking that Japan would submit. As a result, instead of waving a whip, he sent a special envoy to solve the problem. Unexpectedly, the envoys traveled to the east several times, either because the wind and waves were too big or because the Japanese side did not respond. Later, Japan directly refused Kublai Khan's envoy to land, and clearly claimed that it would not pay tribute to the Yuan Dynasty.

Kublai Khan was originally just a "false name" in the picture 1, which made the so-called "submission at home and abroad" a reality, and did not really want Japanese tribute; That's why I've been sitting tight. He sent envoys to the East for many times, but was repeatedly rejected. Kublai Khan had enough and finally sent troops to Japan.

In the 11th year of Zhiyuan (1274), on October 3rd, Mongolian Marshal Xindu, North Korean Deputy Marshal Hongcha Qiuzuo and Shandong Deputy Marshal Liu Fuheng led 900 warships, 28,000 soldiers and15,000 sailors to attack Japan. King Koryo also sent Jin to the army to go out. The battle ended hastily with the Yuan Army occupying two Japanese islands and then withdrawing troops inexplicably. In the eighteenth year of the Yuan Dynasty (128 1), the Yuan army invaded Japan eastward again, with hundreds of soldiers.

This time it's even more bizarre, because the Yuan army was wiped out because of the sudden storm at sea before landing. There is also a saying that the generals of the Yuan army were not in harmony, so they could not give a unified order to March, and eventually they had to withdraw their troops across the board. The reasons for the two expeditions to Japan and the retreat of the Yuan Army are still controversial and uncertain. What is the reason for the tears of Coix lachryma in Bai Pu's ci? That is, the Yuan Army's eastward expedition to Japan failed because the generals were at odds and the ministers were suspicious, which led to the collapse of army morale.

The story of "Coix lachryma jobi" comes from the history of Ma Yuan, the general of Fu Bo in the Han Dynasty. Ma Yuan Biography, Volume 24 of the Book of the Later Han Dynasty, said that when Ma Yuan conquered Vietnam, it was heard that there was a local "Coix lacryma-jobi" plant whose fruit (namely Coix lacryma-jobi) was edible and had the effect of strengthening the body. It can also avoid the harm of miasma in the south after taking it. So on his way back to China, he brought back the seeds of this plant with a whole car and planted them in China.

But at that time, a minister falsely accused the emperor, saying that the car Ma Yuan brought home once contained a car full of jewels. "What happened to tears of Coix seed" in Bai Pu's ci refers to the unfair suspicion and disharmony of Ma Yuan within the Yuan Army, which indirectly implies the failure of the Yuan Army's eastward expedition to Japan.

Since then, although Kublai Khan still wanted to make an expedition to the East, due to various objective reasons and the advice of ministers, he finally failed to go to dispatch troops again. The People's Congress of the Yuan Dynasty thought it unnecessary to go to war for this tiny country. Moreover, Yuan Army is only good at cavalry attack, not at sea. Bai Pu once wrote a poem "Xijiang Moon" and lamented: "White stones sell war bones, while clear springs do not wash flowers. Five clouds and many places to see Penglai, who can cross the sea with a whip? "