It seems to be true from the other dudes answer
After the defeat of Japan in World War II, the United States led the Allies in the occupation and rehabilitation of the Japanese state. Between 1945 and 1952, the U.S. occupying forces, led by General Douglas A. MacArthur enacted widespread military, political, economic, and social reforms
People tried to abide by them and then realized how imperfect we all are, and they realized that we need salvation.