How did the March on Rome bring Mussolini to power?

The March on Rome in October 1922 was an insurrectionist movement that facilitated Benito Mussolini’s rise to power, though it functioned more as a transfer of authority through intimidation than a military conquest.1

Following years of political instability and systematic violence by Fascist squads against socialist and labor institutions, Mussolini’s party planned to seize power by converging on Rome with approximately 25,000 Blackshirts. As these forces gathered, Prime Minister Luigi Facta requested that King Victor Emmanuel III declare martial law to authorize the army to stop the fascists.12

The King refused to sign the decree, fearing that opposing the fascists might trigger a civil war or threaten his own position. By failing to use the military to defend the state, the government surrendered its authority. Consequently, the King invited Mussolini to form a cabinet on October 29, 1922, allowing him to become prime minister through a process that maintained a veneer of constitutional legality while being fundamentally coerced by the threat of armed force.12