National Fascist Party was the ruling party of the Kingdom of Italy from 1922–1943. Benito Mussolini founded the party in 1919 and served as its Chairman (Italian:"Presidente del Partito Nazionale Fascista") from 1919–1943. The Party came to power after Mussolini led thousands of Blackshirts on a march in Rome and forced King Victor Emmanuel III to appoint him Prime Minister. As Prime Minister (the "real" head of government), Mussolini banned all other political parties and established a one-party police state, which lasted until he was thrown out of power by his own citizens and ordered to be arrested by the King in 1943. After Mussolini's arrest, the National Fascist Party was destroyed.