On 
31 October 1922, following the 
March on Rome (28–30 October), Mussolini was 
appointed prime minister by King Victor Emmanuel III, becoming the youngest individual to hold the office up to that time. After removing all political opposition through his secret police and outlawing labor strikes, Mussolini and his followers consolidated power through a series of laws that transformed the nation into a 
one-party dictatorship. Within five years, Mussolini had established dictatorial authority by both legal and illegal means and aspired to create a 
totalitarian state. In 1929, Mussolini signed the 
Lateran Treaty with the Holy See to establish 
Vatican City.
Mussolini's foreign policy aimed to restore the ancient glory of the 
Roman Empire by expanding Italian colonial possessions and the fascist sphere of influence. In the 1920s, he ordered the 
reconquest of Libya, instructed the bombing of Corfu 
over an incident with Greece, established 
a protectorate over Albania, and incorporated the city of 
Fiume into the Italian state via agreements with Yugoslavia. In 1936, 
Ethiopia was conquered following the 
Second Italo–Ethiopian War and merged into 
Italian East Africa (AOI) with 
Eritrea and 
Somalia. In 1939, Italian forces 
annexed Albania. Between 1936 and 1939, Mussolini ordered the successful 
Italian military intervention in Spain in favor of 
Francisco Franco during the 
Spanish civil war. Mussolini's Italy initially tried to avoid the outbreak of a second global war, sending troops at the 
Brenner Pass to delay 
Anschluss and taking part in the 
Stresa front, the 
Lytton Report, the 
Treaty of Lausanne, the 
Four-Power Pact and the 
Munich Agreement. However, Italy then alienated itself from Britain and France by 
aligning with Germany and Japan. Germany 
invaded Poland on 1 September 1939, resulting in declarations of war by France and the UK and the start of 
WW2.
On 
10 June 1940, Mussolini decided to enter the war on the Axis side. Despite initial success, the subsequent 
Axis collapse on multiple fronts and eventual 
Allied invasion of Sicily made Mussolini lose the support of the population and members of the Fascist Party. As a consequence, early on 
25 July 1943, the 
Grand Council of Fascism passed a 
motion of no confidence in Mussolini; later that day King Victor Emmanuel III 
dismissed him as head of government and had him 
placed in custody, appointing 
Pietro Badoglio to succeed him as Prime Minister. After the king agreed to an armistice with the Allies, on 
12 September 1943 Mussolini was 
rescued from captivity in the Gran Sasso raid by 
German paratroopers and 
Waffen-SS commandos led by Major 
Otto-Harald Mors. Hitler, after meeting with the rescued former dictator, then put Mussolini in charge of a 
puppet regime in northern Italy, the 
Italian Social Republic (
Repubblica Sociale Italiana, RSI), informally known as the 
Salò Republic, causing a 
civil war. In 
late April 1945, in the wake of near total defeat, Mussolini and his mistress 
Clara Petacci attempted to flee to Switzerland, but both were 
captured by Italian communist 
partisans and 
summarily executed by firing squad on 
28 April 1945 near 
Lake Como. The bodies of Mussolini and his mistress were then taken to 
Milan, where they were 
hung upside down at a 
service station to publicly confirm their demise.