In 1919, following World War I, Gandhi (aged 49) sought political co-operation from Muslims in his fight against British imperialism by supporting the Ottoman Empire that had been defeated in the World War. Before this initiative of Gandhi, communal disputes and religious riots between Hindus and Muslims were common in British India, such as the riots of 1917–18. Gandhi had already supported the British crown with resources and by recruiting Indian soldiers to fight the war in Europe on the British side.