Answer :
The Nazi's ran Germany during WW2 and wanted to make "a perfect race". So they built concentration Camps and sent Mostly Jews and they killed over 6 million Jews during WW2 .
Nazis were the force behind the start of wwII and responsible for the holocaust,according to history.they took fascist and anti-semitic principles and developed a belief that there was a need for a master race which included aryan superiority and an ethnic cleansing of anyone who did not measure up to their ideology