Although Europeans have similar cultural backgrounds (all cultures are rooted in ancient Greek and Roman cultures) and similar religious beliefs (Christianity), in the long course of world history, war has been the theme of Europe that will never fade, and almost no region has been as chaotic as Europe. Naturally, there are special reasons why European people are so fond of fighting.
The reason for the political system: Europe is different from China. In the long feudal society, Since the Qin Dynasty unified the world, China has always adopted the monarchy and engaged in centralized power, and since the day the emperor climbed to the throne, he has shouted the slogan of "under the whole world, mo fei wang tu, leading the land coast, mo fei wang chen", using various means with force as the core, going all out to eliminate forces that are threatening or even only potential threats to themselves, greatly reducing the probability of rebellion events, thus ensuring that China's peace period is far longer than the war and chaos period. Europe, on the other hand, has taken a different path, they have always been a system of feudal lords, large and small lords (nobles) are divided into one side, each for their own affairs, only individualism, no collectivism, and it is inevitable to fight indiscriminately.
Geopolitical reasons: Although Europe has 10 million square kilometers of land, after subtracting the 4 million square kilometers occupied by Russia, the "freak" across Europe and Asia, there are only 6 million square kilometers left. In this six million square kilometers of land, in this land that is far from vast, there are about fifty countries and more than a hundred nationalities. The vast majority of countries and ethnic groups do not have the size and population of a single province in China. In other words, no country or nation occupies the vast majority of Europe's area and population, and no country or nation has absolute dominance over this land. The consequence of this complex power structure is that no one will obey the other, and wars will continue to rise.
Of course, this habit of loving to fight and being good at fighting also had a certain relationship with the reality that Europe was too poor at that time, and the poorer it was, the more tossed. But the problem is that everyone is poor, and they can't make a few bucks in a fight. Later, some wise people came up with a solution: go out of Europe, go to the outside world to rob, get rich quickly, and compete to be an honorable upstart.
It was Spain and Portugal that turned this line of thinking into reality. In the 15th century, with the support of these two countries, the adventurous people represented by Dias, Columbus, and Magellan, relying on relatively advanced navigation technology, gradually discovered the shipping route to the three continents of Africa, Asia and the United States, and extended their tentacles here.....