Why is Italy, as the cradle of European culture, far behind Britain, Germany and the United States?

Italy is the cradle of European nation and culture, and its capital, Rome, was once the capital of the Roman Empire, which the western world has always been proud of. Many films about ancient Europe made in the west, especially in the United States, are about historical events during the Roman Empire. For example, we are already familiar with historical figures, such as W David and Caesar.

But why is Italy not as good as Germany, Britain and America established by the Roman Empire destroyer Germanic and Anglo-Saxon descendants? As we all know, the Italian army was once the most ridiculed European army in World War II, which made a lot of jokes and made the Germans retreat many times.

So why did Italy, the direct successor of the Roman Empire, lag far behind Germany, Britain and the United States? Throughout the history of Italy, since the demise of the Roman Empire, it has never risen again, and has been invaded by France, Spain, Austria and other countries. Only in modern times, countries such as Britain, France, Germany and the United States were arrogant for a while, but they were all Smith! Italy's experience also shows that a conquered country can never rise again, which is why so many nationalities and countries desperately resist when they encounter the crisis of national subjugation. This is why so many heroes who died to resist foreign invaders are worshipped by people all over the world!