[Euthanasia as a form of extermination applied by Germans in concentration camps during the World War II].

Fighting for the "pure" German nation during the World War II Nazis used euthanasia for killing mentally ill and disabled persons - the action known under the cryptonim T-4. Throughout Poland under the German occupation during euthanasia action Nazis killed many patients of mental hospitals. The euthanasia in concentration camps - the action of murdering ill inmates - was called 14f13. In the Auschwitz concentration camp thousands were murdered in gas chambers. The Nazis aimed at getting rid of disabled and mentally diseased people. Euthanasia was to serve the Nazi ideology.