Totalitarianism is a form of government that seeks to exert complete control over all aspects of public and private life. It typically involves a single-party state led by a dictatorial leader, where political opposition is suppressed, and individual freedoms are severely restricted. Totalitarian regimes often employ Propaganda, surveillance, and state-sponsored violence to maintain power and enforce conformity among the populace. Examples include historical regimes like Nazi Germany and Stalinist Soviet Union.