Later historians' evaluation of Petain is generally divided into two extremes. Some people think that he was a hero of France in World War II, but unfortunately some political means were biased, which led to his ruin. Some people think that Petain is an out-and-out traitor and a man who pursues prosperity. For his own safety, he ignored the safety of the French people and signed an armistice agreement with Germany, pushing Germany into the dark abyss. Petain was born in a low-class family in France, and his father worshipped fascism very much, so he was also trained to be a very stubborn person. Most of the later historians' comments on Petain are inseparable from stubbornness and treason, but as a soldier, Petain made great contributions to the neutrality of World War I. He not only commanded many famous battles in World War I and World War II, but also studied the defense theory in the war.