 The Italian Fascist movement was founded on 23 March 1919 by Benito Mussolini.Mussolini was a World War I veteran, working for the Socialist newspapers until he broke off and established his new Nationalist organization, Fasci di Combattimento.In 1919, at the Paris Peace Conference, Italy was denied the execution of wartime secret Treaty of London (1915) it had concorded with the Triple Entente; wherein Italy was to leave the Triple Alliance and join the enemy, by declaring war against the German Empire and Austria-Hungary, in exchange for territories (Istria and Dalmatia), at war's end, upon which the Kingdom of Italy held claims.