Totalitarian regimes are characterized by the complete control of the state by a single political party, which exercises absolute power over all aspects of society.

Totalitarian regimes typically suppress freedom of the press and other forms of dissent, in order to maintain their control over the population.

Nazism, or National Socialism, was the ideology and political system of the Nazi Party in Germany, which was led by Adolf Hitler.

Stalinism was the ideology and political system of the Soviet Union under the leadership of Joseph Stalin.

Maoism, or Mao Zedong Thought, was the ideology and political system of the People's Republic of China under the leadership of Mao Zedong.

Genocide is the deliberate and systematic extermination of a particular group of people, based on their race, ethnicity, religion, or other group affiliation.

Auschwitz was the largest and most notorious Nazi concentration camp, where over 1 million people were killed during World War II.

The Gulag was a system of Soviet labor camps where millions of people were imprisoned and forced to work, often under harsh and inhumane conditions.

The Laogai was a system of Chinese labor camps where millions of people were imprisoned and forced to work, often under harsh and inhumane conditions.

The Cambodian Genocide was a systematic and deliberate extermination of the Cambodian people by the Khmer Rouge regime, led by Pol Pot, between 1975 and 1979.

The Rwandan Genocide was a systematic and deliberate extermination of the Tutsi people by the Hutu majority in Rwanda in 1994.

Repression is the systematic suppression of dissent and opposition in a totalitarian regime, often through the use of violence, intimidation, and imprisonment.

Propaganda is the widespread use of information and communication to control the population in a totalitarian regime, often through the use of fear, hatred, and misinformation.

Cultural genocide is the systematic destruction of cultural and historical artifacts in a totalitarian regime, in order to erase the identity of a particular group of people.

Human rights abuses are the systematic denial of human rights and freedoms in a totalitarian regime, such as the right to life, liberty, and freedom of expression.