Final answer:
Jews were the first group to suffer under the Hitler regime, followed by other marginalized groups targeted by the Nazis.
Explanation:
The Jews suffered first under the Hitler regime. Hitler targeted Jews due to antisemitism, leading to their segregation, ghettoization, and eventual extermination in the Holocaust. Additionally, Gypsies, people with physical and mental disabilities, and political and religious dissidents were persecuted and killed by the Nazis.
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