How is Fascism different from Nationalism?

Fascism:

often capitalized : a political philosophy, movement, or regime (such as that of the Fascistic) that exalts nation and often race above the individual and that stands for a centralized autocratic government headed by a dictatorial leader, severe economic and social regimentation, and forcible suppression of opposition.

athena gives perseus a mirror sp he won't directly look back at her.