During the 1930s, Japan underwent a period of significant political change. The military began to gain more power and influence, and the government shifted towards a more authoritarian style of rule. The military was given control of the government, and the emperor was given more power. This period also saw the rise of militaristic nationalism, which led to the invasion of Manchuria in 1931 and the Second Sino-Japanese War in 1937. The government also began to implement more oppressive policies, such as censorship and the suppression of dissent. These changes ultimately led to Japan's involvement in World War II.
