China's expansion policy is a historical necessity - Japan is the only neighboring country that did not listen.

Photo by Takezaki Suenaga (licensed under CC0 1.0)

Declared that Japan was no longer a subsidiary of China during the Asuka period

Japan is probably the only East Asian country that has been not under Chinese control.Prince Shotoku's personal letter, "The Emperor of the rising Sun send a letter to you who is Emperor of the sun set ". declared that Japan was not a subordinate country to China.The Huns, Sun Fei, Khitan, Yeojin, Manchuria, and Mongolia were a threat to the Han nationality, and the era of the １６th Kingdom of the Five Kingdoms was a time when many ethnic groups owned the country.The Sunbae people established the Sui and Tang dynasties, the Nujin and the Manchurians established the Qing dynasties during the King Jin dynasties.

Originally, China was conscious of the northern and western continents.In order to guard against foreign invasion, the capital was relocated from Xi'an to Beijing and the Great Wall was built.The Korean Peninsula has not shown its willingness to invade China.Although it was a subordinate country, it maintained its ethnic area as a country.Unlike nomads in the northern part of the peninsula, they settled down.Due to the small area of flat land and the lack of agricultural technology, the land is poor and the number of slaves is large.When the nomadic people eat up, they just move to the next place.At the opening ceremony of the Beijing Olympics, the video of foreigners praising China was the essence of China, and as a result of conquest, China now exists.

Mongolia, which unified the northern peoples in the past, invaded China and established a Yuan dynasties.This is the time when China's expansionary policy is the most important.To the north, the Duchy of Novgorod and other major Russian states were under control, and to the west, Poland was attacked three times.As a result, Poland became a ruined country, although it originally withdrew its troops.During this period, the Goryeo dynasties collapsed on the Korean Peninsula and returned to their original rule.

Aggression to Japan was carried out as part of Yuan's expansionary policy.As a result, the Yuan army was destroyed and Japan maintained its independence after two attacks.Historically, China has a strong belief that Asian countries are under Chinese rule.This is because China was unified by conquering Asia.Only Japan is different.China has never beaten Japan in history.