World War I broke out in August 1914. Many Mauritians volunteered to fight in Europe against the Germans and in Mesopotamia against the Turks. But the war affected Mauritius much less than the wars of the eighteenth century. In fact, the 1914–1918 war was a period of great prosperity, due to a boom in sugar prices. In 1919, the Mauritius Sugar Syndicate came into being, which included 70% of all sugar producers.