How did Benito Mussolini build the Fascist Party in Italy?

Benito Mussolini built the Fascist Party by exploiting post-World War I social discontent and middle-class fears of a socialist revolution. In 1919, he established the fasci di combattimento ("fighting bands") in Milan, a movement that drew from diverse groups including revolutionaries, syndicalists, and discharged soldiers.12

Mussolini utilized paramilitary units known as Blackshirts (Squadre d’Azione) to wage campaigns of violence and intimidation against political opponents, including socialists, communists, trade unionists, and Catholics. These squads were institutionalized into a national political party in November 1921 to centralize Mussolini’s leadership.134

The party’s rise culminated in the March on Rome in October 1922. By concentrating armed Blackshirts to threaten the government, Mussolini forced a political crisis. When King Victor Emmanuel III refused to authorize a state of siege, he instead invited Mussolini to form a government, marking the beginning of fascist rule and the eventual dismantling of Italy's democratic institutions.124