Why did France's performance in World War II become a joke to many people?

Before World War II, France boasted that it was the most powerful army power in the world, with millions of troops, numerous overseas colonies and abundant capital. . In the international situation after World War I, Britain and France came first, followed by France, and the two countries jointly presided over world affairs. At that time, American isolationism prevailed and it did not participate in world affairs.

Before World War II, the strength of France was quite strong. Most people think that France's military strength is very strong. At that time, France should at least be evenly matched with Germany, and it should be deadlocked with Germany like World War I, but after the war really started, France did not support it at all, and it was quickly defeated by Germany, which was really shocking. ?

Speaking of which, I have to mention? Maginot line? . France built a defense against Germany on the Franco-German border during World War II? Maginot line? , called this? Maginot line? Invincible, but France simply believes that with this steel line of defense, Germany can be shut out. Unexpectedly, Hitler's German army first captured two small countries bordering France, and then the German army went straight to the hinterland of France from these two captured countries, thus avoiding it? Machnow? Defense line. France was completely unprepared for this and completely lost its shell? Molluscs? When the Germans entered France, they quickly occupied France like nobody's business. From this,? Machnow? The defense line became the biggest laughing stock during World War II. ?

It's ironic to talk about the performance of France in World War II. It had a lot of face in World War I, but in World War II, France, which was originally a victorious country, became a big eyesore after World War I. How awesome it was! Moreover, in terms of national strength, France is not worse than Germany, both militarily and economically. But in the end, under the yellow plan of Germany, the French army was vulnerable, without resistance or counterattack. Let the Germans easily occupy the whole of France. Therefore, France's performance during World War II can be described as being timid and not resisting. It is said that France's performance in World War II became a joke in the eyes of many people.