Field Service Code

The Field Service Code is presented as a military rule requiring a captured officer to kill himself. Its significance lies in the contradiction it gives form to: capture is framed as a loss of honour for a Japanese officer, while the prisoners held by the same military are stripped of protection and treated as resources for the railway. The rule therefore illuminates the moral order surrounding captivity without making that order coherent or just.

The Rule and the Meaning of Capture

The Code is recalled during Tenji Nakamura’s imprisonment after the war, as he tries to understand how one beating could make someone a war criminal. He asks what a prisoner of war is under a system whose own Field Service Code specifically requires a captured officer to kill himself. In his reasoning, capture signifies the loss of honour and of a recognised human standing. The rule does not merely prescribe an act; it supplies the standard by which he measures the disgrace of survival and captivity.

That standard sits beside a starkly different treatment of Allied prisoners. In the railway command’s logic, POWs are described as less than men and as material to be used alongside sleepers and rails. The contrast is not an equivalence between the Code and the abuse of prisoners: it is an asymmetry in the system’s valuation of lives. A captured Japanese officer is bound by an honour code that demands his death, while Australian POWs are kept alive as forced labour and worked under escalating quotas.

The Code Within the Railway System

The novel places the Code within an imperial order sustained by belief in victory and in the Emperor’s will. The railway is demanded despite shortages of time, money, machinery, and men; its construction proceeds through forced labour, with prisoners made to clear jungle, break rock, and move earth. As the Speedo removes rest days, raises quotas, and lengthens shifts, the prisoners’ lives are increasingly measured by their usefulness to the Line. Against this background, the Code exposes a military culture in which surrender itself is morally stigmatized even as the army exercises power over the lives of those it has captured.

The Code also sharpens the difference between the language of honour and the practical treatment of people. Nakamura’s recollection presents the captured officer as a man who, by surviving, has failed a prescribed standard; the railway command, meanwhile, treats prisoners as labouring bodies whose deaths do not halt the work. The rule helps explain the pressure exerted by the military ideal of refusing capture, but the evidence does not show it as a justification for the railway’s treatment of POWs. Rather, the two sit within a larger structure in which obedience and imperial purpose displace individual responsibility.

Postwar Judgment and Uneven Accountability

The Code returns in a postwar setting shaped by trials, contested evidence, and uneven consequences. At Choi Sang-min’s Australian military trial, the court dismisses the charge that he participated in the murder of Frank Gardiner but convicts him of ordering Wat Cooney’s murder and of lesser offences involving mistreatment and the withholding of food and medical supplies. Choi disputes the evidence about Cooney, noting that Cooney may already have left the camp when the alleged order was given; the camp records are confused and incomplete. He also learns that Colonel Kota’s testimony helped convict Korean and Formosan guards while Kota himself was released without charge. These proceedings do not establish that the Field Service Code determined the verdicts, but they show the postwar legal world in which wartime authority, incomplete records, and unequal treatment complicate responsibility.

The novel broadens that unease through its account of commemoration and postwar forgetting. The Yasukuni Shrine displays locomotive C 5631 and contains the Book of Souls, which includes executed war criminals among the dead enshrined there; the plaque before the locomotive does not mention the railway’s horror or the people who died building it. Separately, Ikuko Kawabata reports that some men involved in wartime medical experiments were sentenced, had their sentences commuted, and were eventually freed, while the Americans and the Japanese both wanted the matter forgotten. These episodes do not describe the Code’s enforcement after the war. They place its ideal of honour beside a postwar landscape where judgment, absolution, and remembrance are uneven, and where the people harmed by imperial systems can disappear from official accounts.