The Third Reich’s policy towards the Sinti and Roma people was based on racist theories claiming the superiority of the German nation over other nations. The rule of the National Socialists in Germany systematically eliminated the Sinti and Roma people from all areas of public life. They were regarded as a socially unassimilated group prone to criminal activity. Consequently, the Roma and Sinti people were refused the right to live and were subject to compulsory sterilisation and systematic extermination during World War II. It was in German-occupied Poland that the extermination was carried out to the greatest extent. Losses among the Roma and Sinti people have not been precisely estimated yet. Approximately at least 250,000 lost their lives in ghettos, concentration camps and outside the camps.