Military History Companion: war crimes
Although an exact definition of this much-used expression is not possible, largely because the term refers to a variety of different transgressions, war crimes could be said to be the violation of national and international laws and customs regarding the resort to war and the conduct of war, and other activities associated with war. Since the Nuremberg and Tokyo trials of 1945-8, it has been accepted in international law that war crimes include at least three types of activity: crimes against peace; crimes against the laws and customs of war (see laws of war) ; and crimes against humanity.
At the end of WW I there was some talk about putting the German war leaders on trial, particularly the hated kaiser, but a tacit recognition prevailed that it might not be such a good idea to delve too deep into who did what to whom and when. Having whipped up popular sentiment with propaganda about German baby-killers and the like this was awkward, but embarrassment is never a sentiment of much weight in information warfare and anyway the general populace was mentally exhausted. However, failure to follow through was to have serious repercussions for the British trying to engage popular sympathy in the USA prior to Pearl Harbor, where the not entirely unfounded suspicion remained ingrained that the USA had been tricked into WW I by British disinformation.
During WW II, the Allied powers had on several occasions made clear their intention to pursue and punish alleged war criminals. The war had seen appalling murders, persecution, and other outrages carried out against combatants and civilian populations alike, the most notorious being the systematic murder of several million people (mainly Jews) in Nazi Germany's death camps, and Japanese mistreatment and murder of POWs and civilians. There was general determination that those responsible should be brought to justice and that any future atrocities should also be punished.
In due course, the great majority of war criminals were tried under a national jurisdiction. In a small number of cases a different process was required, either because of the excessive nature of the crimes, or because the crimes took place outside any one geographical area and could therefore not readily be tried under a national jurisdiction. On 8 August 1945, three months after the surrender of Germany, the USA, Britain, France, and the USSR signed the London Agreement for the ?'Prosecution and Punishment of the Major War Criminals of the European Axis' and nineteen other states later subscribed. The London Agreement provided for an International Military Tribunal, which would sit in Nuremberg in Germany. The trials began in November 1945 and concluded in October 1946. There were 24 original defendants, one of whom committed suicide, one was declared unfit for trial, three were acquitted, four sentenced to lengthy prison terms, three sentenced to life imprisonment, and twelve sentenced to death by hanging. A similar process was held in Tokyo. The International Military Tribunal for the Far East sat from May 1946 to November 1948. Two of the 25 Tokyo defendants received prison sentences, sixteen were sentenced to life imprisonment, and seven were sentenced to death by hanging.
Article 6 of the August 1945 Charter for the Nuremberg Tribunal defined the three categories of crime. Crimes against peace related to violations under jus ad bellum (laws governing the legitimacy of war) and were defined as ?'planning, preparation, initiation, or waging of a war of aggression, or a war in violation of international treaties, agreements, or assurances, or participation in a common plan or conspiracy for the accomplishment of any of the foregoing'. Crimes against peace were difficult to prove, and the attempt to do so was thought by some to be an example of retroactive legislation. Nevertheless, with the Kellogg-Briand Pact of 1928 and other treaties and resolutions, there were sufficient grounds to try acts of aggression as infringements of international law.
Jus in bello (laws governing the conduct of war) thinking, on the other hand, drove the prosecution of crimes against the laws of war, which were defined in the Nuremberg Tribunal Charter as ?'murder, ill-treatment, or deportation to slave labour or for any other purpose of civilian population of or in occupied territory, murder of ill-treatment of prisoners of war or persons on the seas, killing of hostages, plunder of public or private property, wanton destruction of cities, towns, or villages, or devastation not justified by military necessity'. In addition, it was accepted that violations of the laws of war could include other acts, such as the use of banned weapons or the misuse of the flag of surrender, which were not explicitly mentioned in the Charter but were covered elsewhere. Indeed, given that there already existed a sizeable body of international law, particularly the Geneva and Hague Conventions, against which the conduct of combatants could be tested, the prosecution of violations of the law of war were in many respects the least contentious aspects of the war crimes trials.
The Nuremberg Tribunal Charter defined crimes against humanity as ?'murder, extermination, enslavement, deportation and other inhumane acts committed against any civilian population before or during the war, or persecutions on political, racial or religious grounds'. As such, crimes against humanity were, like crimes against the laws of war, derived more from the jus in bello tradition. The war crimes tribunals were at their most adventurous where the prosecution of crimes against humanity were concerned. Since crimes against humanity could be committed ?'before or during the war', and since ?'any civilian population' (including, therefore, that of the offending state) was henceforth to be protected against such crimes, the Nuremberg and Tokyo tribunals tried a new and very broad category of offences. In this respect, the tribunals represented a serious challenge to the traditions of state sovereignty and non-interference; previously, a state had been more or less entitled to treat its citizens as it wished. There was also the defence of ex post facto legislation to contend with; those on trial for crimes against humanity argued that these new developments in international law could not logically or fairly be applied to actions and events which had already taken place.
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