Japanese soldiers, known as Heishi, have a long history that dates back to ancient times. They played significant roles in various conflicts, including the Sengoku period, where samurai warriors were prominent. The modern Japanese military, established after the Meiji Restoration in 1868, transformed into a more organized and industrialized force. During World War II, Japanese soldiers were involved in numerous battles across the Pacific and Asia. They were known for their discipline and loyalty, often adhering to the bushido code, which emphasized honor and bravery. After the war, Japan adopted a pacifist constitution, leading to the formation of the Japan Self-Defense Forces.