causes of ww1

World war 1 was the very first world war that had many changes to the world. World war 1 was the results of leaders aggression towards other countries which was supported by the rising nationalism of the european nations. At the settlement of the Congress of Vienna in 1815, the principle of nationalism was ignored in favor of preserving the peace. Germany and Italy were left as divided states, but strong nationalist movements and revolutions led to the unification of Italy in 1861 and that of Germany in 1871.Nationalism posed a problem for Austria-Hungary and the Balkans, areas comprised of many conflicting national groups. Another factor was imperialism. Great Britain, Germany and France needed foreign markets after the increase in manufacturing caused by the Industrial Revolution. These countries competed for economic expansion in Africa. Militarism denoted a rise in military expenditure, an increase in military and naval forces, more influence of the military men upon the policies of the civilian government, and a preference for force as a solution to problems. Militarism was one of the main causes of the First World War. Franz Ferdinand, was assassinated in Sarajevo in 1914, the Hapsburgs declared war on Serbia. This event helped to propel Europe into World War I. Franz Ferdinand, was assassinated in Sarajevo in 1914, the Hapsburgs declared war on Serbia. This event helped to propel Europe into World War I. Franz Ferdinand was assassination in 1914. Hapsburg declared war on serbia. The Habsburg Empire was finally dismantled in 1918 with the defeat of Austria and Hungary at the end of World War I and the founding of the Republic of Austria. The Habsburg descendents, however, were able to retain their traditional titles although as a monarchy, they would never rule again.