How did maginot line become a war joke?

In fact, as early as before World War II, the French had noticed the expansion ambition of the Germans, and they built the so-called world's strongest maginot line on the Franco-German border. However, this strongest defense cluster in human history, which was completed from 1930 to 1936, did not complete its combat mission until France announced its surrender. Is that its combat function has never been started. Mechanized German troops directly bypassed maginot line and went straight to the French hinterland. The French army, caught off guard, could not resist the powerful German armored forces for a while and was finally defeated.

It seems that the maginot line built by the French government has become a joke in history. Unfortunately, this seemingly unbreakable defense line was proved to be a joke by the German Blitzkrieg in World War II. As mentioned earlier, the maginot line built by the French only reached the Ardennes Forest, but it didn't reach the end of the mainland, only half of it was completed, which gave the German Panzer Corps a perfect opportunity to bypass maginot line.

Maginot line started construction at 1928, and was basically completed at 1940. It was built for eleven years. Even during the Great Depression in Europe, we should tighten our belts and invest half of the defense funds every year to build this defense line, which will always cost France 5 billion francs. As for its name, it is named after a.-L., the French army minister.

There are entertainment facilities such as dormitories, kitchens, power stations, hospitals, factories and even cinemas inside the defense line, which are connected by passages extending in all directions, and there are tram passages between large fortifications. Thousands of French troops hid behind this solid defense line, quietly waiting for the enemy's attack.