Answer:
Fascism-Fascism is a form of far-right, authoritarian ultra-nationalism characterized by dictatorial power, forcible suppression of opposition, and strong regimentation of society and of the economy which came to prominence in early 20th-century
Explanation:
It's difference because National Socialism, more commonly known as Nazism, is the ideology and practices associated with the Nazi Party—officially the National Socialist German Workers' Party —in Nazi Germany, and of other far-right groups with similar ideas and aims.