Nationalism in Japan emerged prominently during the late 19th and early 20th centuries, particularly during the Meiji Restoration. This period marked Japan's rapid modernization and industrialization, fostering a sense of pride in national identity. The government promoted the idea of a unified Japanese state, emphasizing loyalty to the emperor and the nation. During the Shōwa era, especially before and during World War II, nationalism intensified, leading to militarism and expansionist policies. The belief in Japan's superiority and destiny to lead Asia contributed to aggressive actions in regions like China and Korea. After the war, nationalism transformed, focusing more on cultural heritage and economic recovery.