During the 1920s and 1930s, the
Imperial Japanese Army (IJA) adopted an ethos which required soldiers to fight to the death rather than surrender. This policy reflected the practices of Japanese warfare in the pre-modern era. During the
Meiji period the Japanese government adopted western policies towards POWs, and few of the Japanese personnel who surrendered in the
Russo-Japanese War were punished at the end of the war. Prisoners captured by Japanese forces during this and the
First Sino-Japanese War and
World War I were also treated in accordance with international standards. The relatively good treatment that prisoners in Japan received was used as a propaganda tool, exuding a sense of "chivalry" in comparison to the more barbaric perception of Asia that the Meiji government wished to avoid. Attitudes towards surrender hardened after World War I. While Japan signed the
1929 Geneva Convention covering treatment of POWs, it did not ratify the agreement, claiming that surrender was contrary to the beliefs of Japanese soldiers. This attitude was reinforced by the indoctrination of young people. to his head moments before using it to commit suicide. The Australian soldier on the beach had called on him to surrender. The Japanese military's attitude towards surrender was institutionalized in the 1941 "Code of Battlefield Conduct" (
Senjinkun), which was issued to all Japanese soldiers. This document sought to establish standards of behavior for Japanese troops and improve discipline and morale within the Army, and included a prohibition against being taken prisoner. The Japanese Government accompanied the
Senjinkun's implementation with a propaganda campaign which celebrated people who had fought to the death rather than surrender during Japan's wars. While the
Imperial Japanese Navy (IJN) did not issue a document equivalent to the
Senjinkun, naval personnel were expected to exhibit similar behavior and not surrender. Most Japanese military personnel were told that they would be killed or tortured by the Allies if they were taken prisoner. The Army's Field Service Regulations were also modified in 1940 to replace a provision which stated that seriously wounded personnel in field hospitals came under the protection of the
1929 Geneva Convention for the Sick and Wounded Armies in the Field with a requirement that the wounded not fall into enemy hands. During the war, this led to wounded personnel being either killed by medical officers or given grenades to commit suicide. While scholars disagree over whether the
Senjinkun was legally binding on Japanese soldiers, the document reflected Japan's societal norms and had great force over both military personnel and civilians. In 1942 the Army amended its criminal code to specify that officers who surrendered soldiers under their command faced at least six months imprisonment, regardless of the circumstances in which the surrender took place. This change attracted little attention, however, as the
Senjinkun imposed more severe consequences and had greater moral force. Japanese attitudes towards surrender also contributed to the harsh treatment which was inflicted on the Allied personnel they captured. During the later years of the war Japanese troops' morale deteriorated as a result of Allied victories, leading to an increase in the number who were prepared to surrender or desert. During the
Battle of Okinawa, 11,250 Japanese military personnel (including 3,581 unarmed labourers) surrendered between April and July 1945, representing 12 percent of the force deployed for the defense of the island. Many of these men were recently conscripted members of
Boeitai home guard units who had not received the same indoctrination as regular Army personnel, but substantial numbers of IJA soldiers also surrendered. Japanese soldiers' reluctance to surrender was also influenced by a perception that Allied forces would kill them if they did surrender, and historian
Niall Ferguson has argued that this had a more important influence in discouraging surrenders than the fear of disciplinary action or dishonor. Hoyt in "Japan’s war: the great Pacific conflict" argues that the Allied practice of taking bones from Japanese corpses home as souvenirs was exploited by Japanese
propaganda very effectively, and "contributed to a preference to death over surrender and occupation, shown, for example, in the mass civilian suicides on Saipan and Okinawa after the Allied landings". During the Pacific War the majority of Japanese military personnel did not believe that the Allies treated prisoners correctly, and even a majority of those who surrendered expected to be killed. ==Allied attitudes==