Today’s elaborate system of international criminal justice originates in proposals at the end of the First World War to try Kaiser Wilhelm II before an international criminal tribunal. In the weeks following 11 November 1918, the British, French, and Italian Governments agreed on a trial. Lloyd George campaigned for re-election on the slogan ‘Hang the Kaiser’. The Kaiser had fled to the Netherlands, possibly after receiving signals from the Dutch Queen that he would be welcome. Renegade US soldiers led by a former Senator failed in a bizarre attempt to take him prisoner and bring him to Paris. During the Peace Conference, the Commission on Responsibilities brought international lawyers together for the first time to debate international criminal justice. They recommended trial of the Kaiser by an international tribunal for war crimes, but not for starting the war or violating Belgian neutrality. The Americans were opposed to any prosecution. However, President Wilson changed his mind and agreed to trial for a ‘supreme offence against international morality’. This became a clause in the Treaty of Versailles, one of the few that the Germans tried to resist. Although the Allies threatened a range of measures if the former Emperor was not surrendered, the Dutch refused and the demands were dropped in March 1920. The Kaiser lived out his life in a castle near Utrecht, dying of natural causes in June 1941. Hitler sent a wreath to the funeral.
