The correct answer is "WWII".
The Italian goverment was leaded by Benito Mussolini who was Prime Minister between 1922 and 1943. He was the founder of fascism, and he convinced the Italian public opinion to support his ruling because he promised to restore Italy's ancient glory (lost since Roman Empire times) by conducting territorial expansions and he signed a pact with Hitler so that Italy became Germany's ally for WWII.