The Nazis and Hitler were involved in the Holocaust During world war II. Hitler Simply did not want the Jews around. He thought that they were inferior to everyone else. Also other people were the Gypsies.
a global military conflict between 1939 and 1945, which involved most of the world's nations, including all great powers, organized into two opposing military alliances: the Allies and the Axis. It was the most widespread war in history, with more than 100 million military personnel mobilized. In a state of "total war,"
the major participants placed their entire economic, industrial, and
scientific capabilities at the service of the war effort, erasing the
distinction between civilian and military resources. Over seventy million people, the majority civilians, were killed, making it the deadliest conflict in human history.