Final answer:
Mussolini used nationalist rhetoric centered around the idea of returning Italy to its former glory, promising to "make Italy great again" and fostering a warrior culture and militarist nationalism.
Step-by-step explanation:
An example of Mussolini's nationalist rhetoric is his promise to lead Italy "back to her ways of ancient greatness." He promoted a mythic past and glorified the Italian Empire with the goal to "make Italy great again." Mussolini utilized mass media and public spectacle to inculcate a sense of national pride and Fascist identity among the Italians. His rhetoric was characterized by the idea, "All within the state, none outside the state, none against the state." During his political career, he transitioned from socialism to a militarist nationalism, ultimately founding the Fascist Party and leading a march on Rome, which resulted in him being appointed as prime minister.