The event that first appeared, among the ones offered, is the World War I in 1914, after the assassination of Archduke Ferdinand. The war began with the declaration of the war to Serbia by Austro-Hungary, due to which Russia entered the war by announcing the war to Austrio-Hungary. Already tired of the wars, and the failures with Japan, Russia entered the war under very big domestic problems. This situation was used by the Bolsheviks, and with the enormous dissatisfaction of the people, in a pair of Revolutions, took over the power in October 1917. The war ended with the defeat of Germany and its allies, by signing the Treaty of Versailles, according to which Germany was supposed to pay war compensation. Many countries suffered great damage during the war, many countries had a bad economic situation after the war, it was a great depression that used Mussolini to promote the ideas of fascism. The terms of the Treaty of Versailles have contributed to a bad economic situation in Germany, along with great depression, humiliation and a sense of helplessness, which used Hitler as the main arguments for the rise of fascism and Nazism.