Final answer:
Nazism is a form of government that is a variant of totalitarianism and is closely related to fascism, centralized around the absolute power of a single leader and control over all aspects of life.
Step-by-step explanation:
Nazism, which is a form of totalitarianism, is actually a form of government closely related to fascism. Adolf Hitler's Nazi ideology focused on consolidating power in the hands of one ruler and sought to control not only political but also social and personal aspects of life, creating an all-encompassing system that enforced strict adherence to the state's principles and policies. Fascism itself emerged as a reaction to the challenges of fragmented parliaments in countries like Italy and Spain, promoting a form of governance that revered a single leader with the objective of forcefully achieving desirable results, often involving nationalism and militancy.