Why is there a big country in East Asia-China, and there are many small countries in Europe?

There were three civilizations in ancient times: river civilization, marine civilization and grassland civilization.

In Europe, Greece and Rome were the early major countries, and these countries were all marine civilizations. In the later period, both Germany and France were grassland civilizations. Grassland civilization and marine civilization have no fixed territory, and they are very mobile. The Greek city-state system is easy to split, and Greece has a great influence on later Europe. Moreover, in the early stage, European countries were mainly distributed in the Mediterranean region, with little development in the north. Later, many local nomads, Germans who moved northward, and descendants of Xiongnu who moved westward (mainly descendants of Attila) established many small countries, all of which were indomitable peoples who wanted to regain their territory after losing it. Then the Germans split into France, Germany and other regions. These countries have roughly the same national strength, and it is almost impossible to tell the winner in the melee. After the occupation, they divided the territory of the other country, and then after the territory of the other country was divided, different nationalities became independent and repeatedly became these countries today.

Looking at China again, we must first explain why China is so big.

China is an authentic river civilization, emphasizing centralization and closure, and no dissidents are allowed. This can be seen from China's Chinese characters, which emphasize that China is a big country in China. Before feudalism began, especially in the Spring and Autumn Period, vassal states expanded their territories and occupied land as kings. They developed many unknown territories, and all the vassal States wanted to be the masters of a country. So the Qin Dynasty became more and more powerful after Shang Yang's political reform, conquered the other six countries and unified China. After reunification, the territory is basically the Central Plains. During the Han Dynasty, the Han Dynasty conquered the Xiongnu (the only enemy at that time), and after the conquest, its territory expanded to include Mongolia and parts of Northeast China. In the Jin Dynasty, the map expanded again, Taiwan Province Province was traced, and the south almost reached the South China Sea. Unlike Europe, these places have no rulers, which can be said to be for nothing. Followed by the Tang Dynasty, the territory was expanding, and Japan and Korea (now North Korea and Korea) belonged to us, and to a certain extent, to China. Regardless of the Song Dynasty, the Yuan Dynasty did expand the territory of China. Although there was no area west of Xinjiang in the Ming Dynasty, its territory was very similar to that of today, and it expanded in the Qing Dynasty. Later, although China was constantly divided, the People's Liberation Army unified a territory similar to that of the Ming Dynasty and determined such a large territory now.

Then explain why our big land will not be divided.

By the same token, our nation is a big river civilization and pursues independence and integrity in personality. So if a place is divided, we will definitely try to recover it, and our original territory is already so big, so although it is divided, it will still be recovered, resulting in only one big country in East Asia. In addition, the Han nationality has always rejected other ethnic groups. After the Tang Dynasty, many policies of appeasement and absorption were adopted, which prompted many ethnic groups to sincerely join the court, stop rebelling and have no independent thoughts. Therefore, China is much more peaceful than Europe.