Centenary of the outbreak of World War I

The centenary of the outbreak of World War I was commemorated in Europe in late July and early August 2014. A century earlier, the July Crisis, which occurred after the assassination of Archduke Franz Ferdinand, had culminated in Austria-Hungary declaring war on the Kingdom of Serbia, which Austria-Hungary blamed for the assassination, on 28 July 1914. Over the following days and weeks, this action and the invasion of Luxembourg and Belgium by the German Empire led to a succession of other declarations of war that drew the major European powers into a worldwide conflict. A century later, governments in Europe held a series of official commemorative events to mark the occasion.

On 3 August 2014, the centenary of Germany's declaration of war on France was marked by French President François Hollande and German President Joachim Gauck, who together laid the first stone of a new joint memorial at Hartmannswillerkopf for French and German soldiers killed in the war. Over 30,000 soldiers from both sides died in the fighting here at the Battle of Hartmannswillerkopf. The site, in the Vosges mountains of Alsace in France, is the location of a cemetery and a crypt containing the ashes of 12,000 unknown soldiers. The presidents observed a minute's silence in the crypt.

On the morning of 4 August 2014, leaders and representatives of 83 countries gathered at the Allied Memorial at Cointe on the outskirts of Liège to commemorate the invasion of Belgium by Germany and the Battle of Liège. Representing Belgium were Philippe, King of the Belgians and Queen Mathilde, together with the Presidents of France and Germany, François Hollande and Joachim Gauck. Representatives were present from the United Kingdom, the United States, Spain, Italy, Ireland, Serbia, Romania and the European Commission. Speeches were given by King Philippe, Hollande, Gauck, and Prince William, Duke of Cambridge. The commemoration culminated in the laying of a wreath of white roses at the memorial by King Philippe.

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