The major purpose of the earliest concentration camps during the 1930s was to incarcerate and intimidate the leaders of political, social, and cultural movements that the Nazis perceived to be a threat to the survival of the regime. The first Nazi concentration camp was Dachau, established in March 1933, near Munich.
Zinn argues that the U.S. was very similar to fascist Germany because Hitler wanted to finish with all the jews and Abraham Lincoln wanted to abolish slavery.
It established Native American boarding schools which children were required to attend. In these schools they were forced to speak English, study standard subjects, attend church, and leave tribal traditions behind